/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-pthread/cs_stack-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 14:37:04,690 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 14:37:04,748 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 14:37:04,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 14:37:04,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 14:37:04,776 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 14:37:04,777 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 14:37:04,777 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 14:37:04,777 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 14:37:04,777 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 14:37:04,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 14:37:04,778 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 14:37:04,778 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 14:37:04,778 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 14:37:04,779 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 14:37:04,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 14:37:04,779 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 14:37:04,779 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 14:37:04,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 14:37:04,784 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 14:37:04,786 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 14:37:04,787 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 14:37:04,787 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 14:37:04,788 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 14:37:04,788 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 14:37:04,788 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 14:37:04,788 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 14:37:04,789 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 14:37:04,789 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 14:37:04,789 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 14:37:04,790 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 14:37:04,790 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 14:37:04,790 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 14:37:04,790 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 14:37:04,790 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 14:37:04,790 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 14:37:04,790 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 14:37:04,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 14:37:04,791 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 14:37:04,791 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 14:37:04,791 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 14:37:04,791 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 14:37:04,791 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 14:37:04,791 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 14:37:04,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 14:37:04,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 14:37:04,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 14:37:04,996 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 14:37:04,996 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 14:37:04,997 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_stack-1.i [2023-12-21 14:37:06,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 14:37:06,207 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 14:37:06,207 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_stack-1.i [2023-12-21 14:37:06,228 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b1ab16e6/df838ba3c9254ff49e1d2479b7223bb5/FLAGfb15596a3 [2023-12-21 14:37:06,569 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b1ab16e6/df838ba3c9254ff49e1d2479b7223bb5 [2023-12-21 14:37:06,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 14:37:06,577 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 14:37:06,579 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 14:37:06,587 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 14:37:06,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 14:37:06,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:37:06" (1/1) ... [2023-12-21 14:37:06,592 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@178d2197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:37:06, skipping insertion in model container [2023-12-21 14:37:06,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:37:06" (1/1) ... [2023-12-21 14:37:06,665 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 14:37:06,969 WARN L239 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_stack-1.i[34744,34757] [2023-12-21 14:37:07,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 14:37:07,126 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 14:37:07,169 WARN L239 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_stack-1.i[34744,34757] [2023-12-21 14:37:07,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 14:37:07,254 INFO L206 MainTranslator]: Completed translation [2023-12-21 14:37:07,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:37:07 WrapperNode [2023-12-21 14:37:07,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 14:37:07,259 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 14:37:07,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 14:37:07,259 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 14:37:07,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:37:07" (1/1) ... [2023-12-21 14:37:07,317 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:37:07" (1/1) ... [2023-12-21 14:37:07,373 INFO L138 Inliner]: procedures = 254, calls = 274, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 648 [2023-12-21 14:37:07,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 14:37:07,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 14:37:07,375 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 14:37:07,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 14:37:07,382 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:37:07" (1/1) ... [2023-12-21 14:37:07,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:37:07" (1/1) ... [2023-12-21 14:37:07,391 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:37:07" (1/1) ... [2023-12-21 14:37:07,433 INFO L175 MemorySlicer]: Split 130 memory accesses to 17 slices as follows [3, 2, 7, 8, 8, 20, 12, 12, 6, 4, 5, 12, 7, 13, 8, 3, 0]. 15 percent of accesses are in the largest equivalence class. The 30 initializations are split as follows [0, 2, 0, 3, 3, 6, 6, 2, 2, 2, 2, 0, 0, 0, 2, 0, 0]. The 38 writes are split as follows [1, 0, 1, 2, 2, 8, 3, 3, 2, 1, 1, 2, 1, 7, 3, 1, 0]. [2023-12-21 14:37:07,434 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:37:07" (1/1) ... [2023-12-21 14:37:07,434 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:37:07" (1/1) ... [2023-12-21 14:37:07,474 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:37:07" (1/1) ... [2023-12-21 14:37:07,488 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:37:07" (1/1) ... [2023-12-21 14:37:07,494 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:37:07" (1/1) ... [2023-12-21 14:37:07,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:37:07" (1/1) ... [2023-12-21 14:37:07,516 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 14:37:07,517 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 14:37:07,517 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 14:37:07,517 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 14:37:07,518 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:37:07" (1/1) ... [2023-12-21 14:37:07,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 14:37:07,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:37:07,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 14:37:07,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 14:37:07,621 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 14:37:07,622 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 14:37:07,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-21 14:37:07,623 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2023-12-21 14:37:07,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2023-12-21 14:37:07,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-21 14:37:07,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-21 14:37:07,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-21 14:37:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-12-21 14:37:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-12-21 14:37:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-12-21 14:37:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-12-21 14:37:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-12-21 14:37:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-12-21 14:37:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-12-21 14:37:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-12-21 14:37:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-12-21 14:37:07,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-12-21 14:37:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-12-21 14:37:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-12-21 14:37:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-12-21 14:37:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-12-21 14:37:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-21 14:37:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-12-21 14:37:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-12-21 14:37:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-12-21 14:37:07,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-12-21 14:37:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-12-21 14:37:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-12-21 14:37:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-12-21 14:37:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-12-21 14:37:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-12-21 14:37:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-12-21 14:37:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-12-21 14:37:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-12-21 14:37:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-12-21 14:37:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-12-21 14:37:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-12-21 14:37:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-12-21 14:37:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-12-21 14:37:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2023-12-21 14:37:07,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2023-12-21 14:37:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 14:37:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 14:37:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-21 14:37:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-21 14:37:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-21 14:37:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-21 14:37:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-21 14:37:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-21 14:37:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-21 14:37:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-21 14:37:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-21 14:37:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-21 14:37:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-21 14:37:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-21 14:37:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-12-21 14:37:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-12-21 14:37:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-12-21 14:37:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 14:37:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 14:37:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-21 14:37:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-21 14:37:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-21 14:37:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-21 14:37:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-21 14:37:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-21 14:37:07,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-21 14:37:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-21 14:37:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-21 14:37:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-21 14:37:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-21 14:37:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-21 14:37:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-12-21 14:37:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-12-21 14:37:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-12-21 14:37:07,632 INFO L130 BoogieDeclarations]: Found specification of procedure get_top [2023-12-21 14:37:07,632 INFO L138 BoogieDeclarations]: Found implementation of procedure get_top [2023-12-21 14:37:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 14:37:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-21 14:37:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-21 14:37:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-21 14:37:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-12-21 14:37:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-12-21 14:37:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-12-21 14:37:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-12-21 14:37:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-12-21 14:37:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-12-21 14:37:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-12-21 14:37:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-12-21 14:37:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-12-21 14:37:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-12-21 14:37:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-12-21 14:37:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-12-21 14:37:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-12-21 14:37:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-12-21 14:37:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-12-21 14:37:07,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-12-21 14:37:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-12-21 14:37:07,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-12-21 14:37:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-21 14:37:07,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-21 14:37:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-21 14:37:07,635 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-21 14:37:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-12-21 14:37:07,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-12-21 14:37:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 14:37:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 14:37:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 14:37:07,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 14:37:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 14:37:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 14:37:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-21 14:37:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-21 14:37:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-21 14:37:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-21 14:37:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-21 14:37:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-21 14:37:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-21 14:37:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-21 14:37:07,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-21 14:37:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-21 14:37:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-21 14:37:07,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 14:37:07,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 14:37:07,837 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 14:37:07,838 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 14:37:07,881 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-21 14:37:07,881 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);#res := 0; [2023-12-21 14:37:08,176 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##97: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-21 14:37:08,177 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##96: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);push_#res#1 := 0; [2023-12-21 14:37:08,177 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-21 14:37:08,177 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);pop_#res#1 := 0; [2023-12-21 14:37:08,177 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##58: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-21 14:37:08,177 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);pop_#res#1 := 0; [2023-12-21 14:37:08,177 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-21 14:37:08,177 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);pop_#res#1 := 0; [2023-12-21 14:37:08,177 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L1005: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);pop_#res#1 := 0; [2023-12-21 14:37:08,177 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L1005: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296));pop_#res#1 := 0; [2023-12-21 14:37:08,177 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L989-2: SUMMARY for call __CS_cs(); srcloc: null [2023-12-21 14:37:08,178 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);push_#res#1 := 0; [2023-12-21 14:37:08,178 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##112: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-21 14:37:08,191 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-21 14:37:08,192 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296); [2023-12-21 14:37:08,192 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296); [2023-12-21 14:37:08,192 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-21 14:37:08,192 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-21 14:37:08,192 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L933: SUMMARY for call __CS_cs(); srcloc: null [2023-12-21 14:37:08,192 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L933-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296); [2023-12-21 14:37:08,192 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L933-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-21 14:37:08,192 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296); [2023-12-21 14:37:12,443 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 14:37:12,468 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 14:37:12,468 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-12-21 14:37:12,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:37:12 BoogieIcfgContainer [2023-12-21 14:37:12,469 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 14:37:12,470 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 14:37:12,470 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 14:37:12,473 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 14:37:12,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:37:06" (1/3) ... [2023-12-21 14:37:12,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2c8222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:37:12, skipping insertion in model container [2023-12-21 14:37:12,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:37:07" (2/3) ... [2023-12-21 14:37:12,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2c8222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:37:12, skipping insertion in model container [2023-12-21 14:37:12,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:37:12" (3/3) ... [2023-12-21 14:37:12,474 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_stack-1.i [2023-12-21 14:37:12,486 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 14:37:12,486 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 14:37:12,519 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 14:37:12,523 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;@30d83437, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 14:37:12,523 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 14:37:12,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 212 states, 128 states have (on average 1.578125) internal successors, (202), 131 states have internal predecessors, (202), 73 states have call successors, (73), 9 states have call predecessors, (73), 9 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-21 14:37:12,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 14:37:12,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:37:12,542 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:37:12,542 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:37:12,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:37:12,545 INFO L85 PathProgramCache]: Analyzing trace with hash 793737601, now seen corresponding path program 1 times [2023-12-21 14:37:12,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:37:12,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126182264] [2023-12-21 14:37:12,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:12,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:37:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:12,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 14:37:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:12,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 14:37:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:12,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 14:37:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:12,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-21 14:37:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:12,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 14:37:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:12,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 14:37:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:12,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 14:37:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:12,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 14:37:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:12,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 14:37:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:12,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 14:37:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:12,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 14:37:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:12,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 14:37:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:12,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 14:37:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:12,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 14:37:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:12,984 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 14:37:12,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:37:12,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126182264] [2023-12-21 14:37:12,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126182264] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:37:12,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:37:12,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:37:12,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320382928] [2023-12-21 14:37:12,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:37:12,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:37:12,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:37:13,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:37:13,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:37:13,009 INFO L87 Difference]: Start difference. First operand has 212 states, 128 states have (on average 1.578125) internal successors, (202), 131 states have internal predecessors, (202), 73 states have call successors, (73), 9 states have call predecessors, (73), 9 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 14:37:13,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:37:13,110 INFO L93 Difference]: Finished difference Result 428 states and 773 transitions. [2023-12-21 14:37:13,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:37:13,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 95 [2023-12-21 14:37:13,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:37:13,122 INFO L225 Difference]: With dead ends: 428 [2023-12-21 14:37:13,122 INFO L226 Difference]: Without dead ends: 215 [2023-12-21 14:37:13,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:37:13,129 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 6 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:37:13,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 655 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:37:13,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2023-12-21 14:37:13,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 211. [2023-12-21 14:37:13,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 128 states have (on average 1.515625) internal successors, (194), 130 states have internal predecessors, (194), 73 states have call successors, (73), 9 states have call predecessors, (73), 9 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-21 14:37:13,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 340 transitions. [2023-12-21 14:37:13,174 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 340 transitions. Word has length 95 [2023-12-21 14:37:13,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:37:13,175 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 340 transitions. [2023-12-21 14:37:13,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 14:37:13,175 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 340 transitions. [2023-12-21 14:37:13,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:37:13,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:37:13,209 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:37:13,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 14:37:13,210 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:37:13,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:37:13,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1233001572, now seen corresponding path program 1 times [2023-12-21 14:37:13,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:37:13,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866472540] [2023-12-21 14:37:13,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:13,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:37:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 14:37:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 14:37:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 14:37:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 14:37:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 14:37:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 14:37:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 14:37:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 14:37:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 14:37:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 14:37:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 14:37:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 14:37:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 14:37:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 14:37:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,467 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 14:37:13,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:37:13,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866472540] [2023-12-21 14:37:13,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866472540] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:37:13,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:37:13,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:37:13,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871090248] [2023-12-21 14:37:13,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:37:13,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:37:13,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:37:13,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:37:13,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:37:13,474 INFO L87 Difference]: Start difference. First operand 211 states and 340 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 14:37:13,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:37:13,558 INFO L93 Difference]: Finished difference Result 422 states and 682 transitions. [2023-12-21 14:37:13,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:37:13,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 100 [2023-12-21 14:37:13,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:37:13,563 INFO L225 Difference]: With dead ends: 422 [2023-12-21 14:37:13,563 INFO L226 Difference]: Without dead ends: 213 [2023-12-21 14:37:13,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:37:13,565 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 0 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:37:13,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 654 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:37:13,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-12-21 14:37:13,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2023-12-21 14:37:13,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 130 states have (on average 1.5076923076923077) internal successors, (196), 132 states have internal predecessors, (196), 73 states have call successors, (73), 9 states have call predecessors, (73), 9 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-21 14:37:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 342 transitions. [2023-12-21 14:37:13,593 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 342 transitions. Word has length 100 [2023-12-21 14:37:13,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:37:13,594 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 342 transitions. [2023-12-21 14:37:13,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 14:37:13,594 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 342 transitions. [2023-12-21 14:37:13,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 14:37:13,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:37:13,601 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:37:13,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 14:37:13,601 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:37:13,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:37:13,602 INFO L85 PathProgramCache]: Analyzing trace with hash -631579465, now seen corresponding path program 1 times [2023-12-21 14:37:13,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:37:13,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093222409] [2023-12-21 14:37:13,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:13,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:37:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 14:37:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:37:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 14:37:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 14:37:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 14:37:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 14:37:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 14:37:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 14:37:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 14:37:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 14:37:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 14:37:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 14:37:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 14:37:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 14:37:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:13,888 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2023-12-21 14:37:13,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:37:13,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093222409] [2023-12-21 14:37:13,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093222409] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:37:13,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938809846] [2023-12-21 14:37:13,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:13,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:37:13,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:37:13,892 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) [2023-12-21 14:37:13,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 14:37:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:14,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 14:37:14,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:37:14,325 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2023-12-21 14:37:14,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:37:14,374 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2023-12-21 14:37:14,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938809846] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:37:14,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:37:14,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-12-21 14:37:14,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015523806] [2023-12-21 14:37:14,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:37:14,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 14:37:14,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:37:14,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 14:37:14,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-21 14:37:14,378 INFO L87 Difference]: Start difference. First operand 213 states and 342 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-21 14:37:14,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:37:14,463 INFO L93 Difference]: Finished difference Result 428 states and 690 transitions. [2023-12-21 14:37:14,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:37:14,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 102 [2023-12-21 14:37:14,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:37:14,466 INFO L225 Difference]: With dead ends: 428 [2023-12-21 14:37:14,466 INFO L226 Difference]: Without dead ends: 217 [2023-12-21 14:37:14,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-21 14:37:14,469 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 0 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:37:14,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 979 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:37:14,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-12-21 14:37:14,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2023-12-21 14:37:14,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 134 states have (on average 1.492537313432836) internal successors, (200), 136 states have internal predecessors, (200), 73 states have call successors, (73), 9 states have call predecessors, (73), 9 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-21 14:37:14,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 346 transitions. [2023-12-21 14:37:14,485 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 346 transitions. Word has length 102 [2023-12-21 14:37:14,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:37:14,485 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 346 transitions. [2023-12-21 14:37:14,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-21 14:37:14,486 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 346 transitions. [2023-12-21 14:37:14,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 14:37:14,487 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:37:14,487 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 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] [2023-12-21 14:37:14,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 14:37:14,693 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 [2023-12-21 14:37:14,693 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:37:14,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:37:14,694 INFO L85 PathProgramCache]: Analyzing trace with hash 903316247, now seen corresponding path program 2 times [2023-12-21 14:37:14,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:37:14,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345289004] [2023-12-21 14:37:14,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:14,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:37:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:14,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 14:37:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:14,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 14:37:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:14,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 14:37:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:14,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 14:37:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:14,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 14:37:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:14,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 14:37:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:14,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 14:37:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:14,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 14:37:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:14,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 14:37:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:14,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 14:37:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:14,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 14:37:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:14,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 14:37:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:14,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 14:37:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:14,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 14:37:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:14,933 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2023-12-21 14:37:14,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:37:14,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345289004] [2023-12-21 14:37:14,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345289004] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:37:14,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170515830] [2023-12-21 14:37:14,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 14:37:14,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:37:14,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:37:14,954 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) [2023-12-21 14:37:14,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 14:37:15,251 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-21 14:37:15,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 14:37:15,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-21 14:37:15,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:37:15,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-12-21 14:37:15,447 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2023-12-21 14:37:15,447 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 14:37:15,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170515830] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:37:15,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 14:37:15,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 9 [2023-12-21 14:37:15,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434971838] [2023-12-21 14:37:15,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:37:15,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 14:37:15,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:37:15,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 14:37:15,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 14:37:15,449 INFO L87 Difference]: Start difference. First operand 217 states and 346 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 14:37:19,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:23,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:24,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:37:24,200 INFO L93 Difference]: Finished difference Result 804 states and 1320 transitions. [2023-12-21 14:37:24,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 14:37:24,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-12-21 14:37:24,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:37:24,206 INFO L225 Difference]: With dead ends: 804 [2023-12-21 14:37:24,206 INFO L226 Difference]: Without dead ends: 546 [2023-12-21 14:37:24,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:37:24,207 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 760 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 145 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:37:24,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 1509 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 401 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2023-12-21 14:37:24,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2023-12-21 14:37:24,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 546. [2023-12-21 14:37:24,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 330 states have (on average 1.5575757575757576) internal successors, (514), 336 states have internal predecessors, (514), 188 states have call successors, (188), 27 states have call predecessors, (188), 27 states have return successors, (206), 188 states have call predecessors, (206), 188 states have call successors, (206) [2023-12-21 14:37:24,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 908 transitions. [2023-12-21 14:37:24,242 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 908 transitions. Word has length 106 [2023-12-21 14:37:24,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:37:24,242 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 908 transitions. [2023-12-21 14:37:24,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 14:37:24,242 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 908 transitions. [2023-12-21 14:37:24,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-21 14:37:24,286 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:37:24,287 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 5, 3, 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] [2023-12-21 14:37:24,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 14:37:24,493 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 [2023-12-21 14:37:24,493 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:37:24,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:37:24,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1222385902, now seen corresponding path program 1 times [2023-12-21 14:37:24,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:37:24,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303091468] [2023-12-21 14:37:24,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:24,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:37:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 14:37:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:37:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 14:37:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:37:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 14:37:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 14:37:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 14:37:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 14:37:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 14:37:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 14:37:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 14:37:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 14:37:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 14:37:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 14:37:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-21 14:37:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-21 14:37:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-21 14:37:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-21 14:37:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-21 14:37:24,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-21 14:37:24,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-21 14:37:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-21 14:37:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-21 14:37:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:24,932 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 740 trivial. 0 not checked. [2023-12-21 14:37:24,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:37:24,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303091468] [2023-12-21 14:37:24,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303091468] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:37:24,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574057333] [2023-12-21 14:37:24,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:24,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:37:24,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:37:24,933 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) [2023-12-21 14:37:24,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 14:37:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:25,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 1339 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 14:37:25,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:37:25,399 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 734 trivial. 0 not checked. [2023-12-21 14:37:25,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:37:25,505 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 734 trivial. 0 not checked. [2023-12-21 14:37:25,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574057333] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:37:25,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:37:25,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 13 [2023-12-21 14:37:25,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579746445] [2023-12-21 14:37:25,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:37:25,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 14:37:25,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:37:25,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 14:37:25,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-12-21 14:37:25,508 INFO L87 Difference]: Start difference. First operand 546 states and 908 transitions. Second operand has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 9 states have internal predecessors, (98), 2 states have call successors, (57), 6 states have call predecessors, (57), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-21 14:37:29,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:33,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:37,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:39,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:37:39,061 INFO L93 Difference]: Finished difference Result 1128 states and 1871 transitions. [2023-12-21 14:37:39,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 14:37:39,061 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 9 states have internal predecessors, (98), 2 states have call successors, (57), 6 states have call predecessors, (57), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 182 [2023-12-21 14:37:39,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:37:39,066 INFO L225 Difference]: With dead ends: 1128 [2023-12-21 14:37:39,066 INFO L226 Difference]: Without dead ends: 584 [2023-12-21 14:37:39,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 417 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2023-12-21 14:37:39,069 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 169 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 97 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:37:39,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 1310 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1265 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2023-12-21 14:37:39,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-12-21 14:37:39,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 568. [2023-12-21 14:37:39,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 349 states have (on average 1.5329512893982808) internal successors, (535), 358 states have internal predecessors, (535), 188 states have call successors, (188), 27 states have call predecessors, (188), 30 states have return successors, (211), 188 states have call predecessors, (211), 188 states have call successors, (211) [2023-12-21 14:37:39,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 934 transitions. [2023-12-21 14:37:39,134 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 934 transitions. Word has length 182 [2023-12-21 14:37:39,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:37:39,135 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 934 transitions. [2023-12-21 14:37:39,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 9 states have internal predecessors, (98), 2 states have call successors, (57), 6 states have call predecessors, (57), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-21 14:37:39,135 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 934 transitions. [2023-12-21 14:37:39,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-21 14:37:39,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:37:39,141 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 10, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 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] [2023-12-21 14:37:39,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-21 14:37:39,368 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 [2023-12-21 14:37:39,369 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:37:39,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:37:39,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1423741856, now seen corresponding path program 2 times [2023-12-21 14:37:39,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:37:39,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931925244] [2023-12-21 14:37:39,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:39,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:37:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:39,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 14:37:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:37:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 14:37:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:37:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 14:37:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 14:37:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 14:37:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 14:37:40,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 14:37:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 14:37:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 14:37:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-21 14:37:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-21 14:37:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 14:37:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-21 14:37:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-21 14:37:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-21 14:37:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-21 14:37:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-21 14:37:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 14:37:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-21 14:37:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-21 14:37:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-21 14:37:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:40,138 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2023-12-21 14:37:40,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:37:40,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931925244] [2023-12-21 14:37:40,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931925244] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:37:40,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:37:40,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:37:40,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506698419] [2023-12-21 14:37:40,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:37:40,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:37:40,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:37:40,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:37:40,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:37:40,140 INFO L87 Difference]: Start difference. First operand 568 states and 934 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 4 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-12-21 14:37:44,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:45,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:49,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:53,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:56,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:37:56,258 INFO L93 Difference]: Finished difference Result 1167 states and 1917 transitions. [2023-12-21 14:37:56,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 14:37:56,259 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 4 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 197 [2023-12-21 14:37:56,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:37:56,263 INFO L225 Difference]: With dead ends: 1167 [2023-12-21 14:37:56,264 INFO L226 Difference]: Without dead ends: 802 [2023-12-21 14:37:56,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:37:56,267 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 622 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 476 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:37:56,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 933 Invalid, 1611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 1132 Invalid, 3 Unknown, 0 Unchecked, 15.4s Time] [2023-12-21 14:37:56,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2023-12-21 14:37:56,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 774. [2023-12-21 14:37:56,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 470 states have (on average 1.5276595744680852) internal successors, (718), 485 states have internal predecessors, (718), 260 states have call successors, (260), 36 states have call predecessors, (260), 43 states have return successors, (296), 260 states have call predecessors, (296), 260 states have call successors, (296) [2023-12-21 14:37:56,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1274 transitions. [2023-12-21 14:37:56,323 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1274 transitions. Word has length 197 [2023-12-21 14:37:56,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:37:56,324 INFO L495 AbstractCegarLoop]: Abstraction has 774 states and 1274 transitions. [2023-12-21 14:37:56,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 4 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-12-21 14:37:56,324 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1274 transitions. [2023-12-21 14:37:56,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-21 14:37:56,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:37:56,330 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 10, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 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] [2023-12-21 14:37:56,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 14:37:56,330 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:37:56,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:37:56,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1909593472, now seen corresponding path program 1 times [2023-12-21 14:37:56,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:37:56,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050958183] [2023-12-21 14:37:56,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:56,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:37:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:56,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:37:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:56,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:37:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:56,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:56,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 14:37:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:37:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 14:37:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 14:37:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 14:37:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 14:37:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 14:37:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 14:37:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 14:37:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-21 14:37:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-21 14:37:57,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 14:37:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-21 14:37:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-21 14:37:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-21 14:37:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-21 14:37:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-21 14:37:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 14:37:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-21 14:37:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-21 14:37:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-21 14:37:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,165 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 824 trivial. 0 not checked. [2023-12-21 14:37:57,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:37:57,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050958183] [2023-12-21 14:37:57,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050958183] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:37:57,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865119305] [2023-12-21 14:37:57,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:57,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:37:57,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:37:57,166 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) [2023-12-21 14:37:57,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 14:37:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:57,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-21 14:37:57,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:37:57,649 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 11 treesize of output 7 [2023-12-21 14:37:57,872 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 280 proven. 32 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2023-12-21 14:37:57,872 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:37:58,404 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 753 trivial. 0 not checked. [2023-12-21 14:37:58,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865119305] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:37:58,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:37:58,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 32 [2023-12-21 14:37:58,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518505210] [2023-12-21 14:37:58,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:37:58,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-21 14:37:58,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:37:58,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-21 14:37:58,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=831, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:37:58,406 INFO L87 Difference]: Start difference. First operand 774 states and 1274 transitions. Second operand has 32 states, 30 states have (on average 3.466666666666667) internal successors, (104), 28 states have internal predecessors, (104), 15 states have call successors, (53), 12 states have call predecessors, (53), 12 states have return successors, (53), 10 states have call predecessors, (53), 15 states have call successors, (53) [2023-12-21 14:38:02,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:06,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:10,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:14,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:18,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:22,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:26,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:30,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:34,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:38,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:42,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:46,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:50,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:54,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:58,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:02,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:06,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:14,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:39:14,905 INFO L93 Difference]: Finished difference Result 2266 states and 3671 transitions. [2023-12-21 14:39:14,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-12-21 14:39:14,905 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 3.466666666666667) internal successors, (104), 28 states have internal predecessors, (104), 15 states have call successors, (53), 12 states have call predecessors, (53), 12 states have return successors, (53), 10 states have call predecessors, (53), 15 states have call successors, (53) Word has length 197 [2023-12-21 14:39:14,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:39:14,923 INFO L225 Difference]: With dead ends: 2266 [2023-12-21 14:39:14,924 INFO L226 Difference]: Without dead ends: 1467 [2023-12-21 14:39:14,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2564 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1679, Invalid=6693, Unknown=0, NotChecked=0, Total=8372 [2023-12-21 14:39:14,928 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 2858 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 4153 mSolverCounterSat, 2086 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2896 SdHoareTripleChecker+Valid, 3023 SdHoareTripleChecker+Invalid, 6256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2086 IncrementalHoareTripleChecker+Valid, 4153 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:39:14,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2896 Valid, 3023 Invalid, 6256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2086 Valid, 4153 Invalid, 17 Unknown, 0 Unchecked, 72.3s Time] [2023-12-21 14:39:14,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2023-12-21 14:39:15,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1323. [2023-12-21 14:39:15,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 798 states have (on average 1.487468671679198) internal successors, (1187), 822 states have internal predecessors, (1187), 437 states have call successors, (437), 77 states have call predecessors, (437), 87 states have return successors, (504), 435 states have call predecessors, (504), 437 states have call successors, (504) [2023-12-21 14:39:15,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 2128 transitions. [2023-12-21 14:39:15,033 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 2128 transitions. Word has length 197 [2023-12-21 14:39:15,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:39:15,033 INFO L495 AbstractCegarLoop]: Abstraction has 1323 states and 2128 transitions. [2023-12-21 14:39:15,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 3.466666666666667) internal successors, (104), 28 states have internal predecessors, (104), 15 states have call successors, (53), 12 states have call predecessors, (53), 12 states have return successors, (53), 10 states have call predecessors, (53), 15 states have call successors, (53) [2023-12-21 14:39:15,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 2128 transitions. [2023-12-21 14:39:15,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-21 14:39:15,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:39:15,039 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 10, 6, 5, 5, 5, 5, 2, 2, 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] [2023-12-21 14:39:15,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 14:39:15,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:39:15,253 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:39:15,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:39:15,253 INFO L85 PathProgramCache]: Analyzing trace with hash -188967617, now seen corresponding path program 1 times [2023-12-21 14:39:15,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:39:15,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036065564] [2023-12-21 14:39:15,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:39:15,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:39:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:39:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:39:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 14:39:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 14:39:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:39:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 14:39:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 14:39:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 14:39:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 14:39:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 14:39:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 14:39:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-21 14:39:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-21 14:39:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-21 14:39:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-21 14:39:15,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-21 14:39:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:15,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-21 14:39:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:16,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-21 14:39:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:16,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-21 14:39:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:16,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-21 14:39:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:16,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-21 14:39:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:16,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-21 14:39:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:16,009 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2023-12-21 14:39:16,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:39:16,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036065564] [2023-12-21 14:39:16,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036065564] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:39:16,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:39:16,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:39:16,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209109577] [2023-12-21 14:39:16,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:39:16,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:39:16,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:39:16,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:39:16,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:39:16,011 INFO L87 Difference]: Start difference. First operand 1323 states and 2128 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-12-21 14:39:20,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:24,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:28,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:32,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:33,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:34,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:39:34,426 INFO L93 Difference]: Finished difference Result 1734 states and 2753 transitions. [2023-12-21 14:39:34,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 14:39:34,426 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 194 [2023-12-21 14:39:34,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:39:34,432 INFO L225 Difference]: With dead ends: 1734 [2023-12-21 14:39:34,432 INFO L226 Difference]: Without dead ends: 1311 [2023-12-21 14:39:34,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2023-12-21 14:39:34,434 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 470 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 518 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:39:34,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 1046 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 630 Invalid, 4 Unknown, 0 Unchecked, 18.0s Time] [2023-12-21 14:39:34,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2023-12-21 14:39:34,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1277. [2023-12-21 14:39:34,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 772 states have (on average 1.4766839378238341) internal successors, (1140), 795 states have internal predecessors, (1140), 417 states have call successors, (417), 77 states have call predecessors, (417), 87 states have return successors, (481), 415 states have call predecessors, (481), 417 states have call successors, (481) [2023-12-21 14:39:34,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 2038 transitions. [2023-12-21 14:39:34,531 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 2038 transitions. Word has length 194 [2023-12-21 14:39:34,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:39:34,531 INFO L495 AbstractCegarLoop]: Abstraction has 1277 states and 2038 transitions. [2023-12-21 14:39:34,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-12-21 14:39:34,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 2038 transitions. [2023-12-21 14:39:34,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-21 14:39:34,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:39:34,537 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 10, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 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] [2023-12-21 14:39:34,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 14:39:34,537 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:39:34,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:39:34,537 INFO L85 PathProgramCache]: Analyzing trace with hash -722934082, now seen corresponding path program 1 times [2023-12-21 14:39:34,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:39:34,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087571510] [2023-12-21 14:39:34,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:39:34,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:39:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:35,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:39:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:39:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 14:39:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:39:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 14:39:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 14:39:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 14:39:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 14:39:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 14:39:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 14:39:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 14:39:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-21 14:39:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-21 14:39:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 14:39:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-21 14:39:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-21 14:39:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-21 14:39:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-21 14:39:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-21 14:39:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 14:39:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-21 14:39:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-21 14:39:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-21 14:39:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:36,603 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 824 trivial. 0 not checked. [2023-12-21 14:39:36,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:39:36,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087571510] [2023-12-21 14:39:36,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087571510] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:39:36,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315326222] [2023-12-21 14:39:36,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:39:36,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:39:36,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:39:36,617 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) [2023-12-21 14:39:36,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 14:39:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:37,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 1658 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-21 14:39:37,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:39:37,383 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 [2023-12-21 14:39:50,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 14:39:50,601 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 14:39:50,601 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 [2023-12-21 14:39:52,498 INFO L349 Elim1Store]: treesize reduction 64, result has 54.9 percent of original size [2023-12-21 14:39:52,498 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 [2023-12-21 14:40:29,773 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 344 proven. 4 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2023-12-21 14:40:29,773 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:40:29,914 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 [2023-12-21 14:40:29,917 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 [2023-12-21 14:40:30,218 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 [2023-12-21 14:40:30,220 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 [2023-12-21 14:40:30,253 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 [2023-12-21 14:40:30,263 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 [2023-12-21 14:40:30,330 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2023-12-21 14:40:30,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315326222] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:40:30,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:40:30,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 9] total 40 [2023-12-21 14:40:30,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856927896] [2023-12-21 14:40:30,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:40:30,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-21 14:40:30,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:40:30,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-21 14:40:30,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1404, Unknown=4, NotChecked=0, Total=1560 [2023-12-21 14:40:30,332 INFO L87 Difference]: Start difference. First operand 1277 states and 2038 transitions. Second operand has 40 states, 37 states have (on average 3.8378378378378377) internal successors, (142), 36 states have internal predecessors, (142), 19 states have call successors, (59), 13 states have call predecessors, (59), 14 states have return successors, (59), 17 states have call predecessors, (59), 19 states have call successors, (59) [2023-12-21 14:40:34,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:40:38,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:40:42,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:40:44,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:40:46,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:40:50,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:40:54,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:40:58,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:04,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:06,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:10,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:14,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:18,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:22,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:32,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:41:32,054 INFO L93 Difference]: Finished difference Result 2536 states and 4095 transitions. [2023-12-21 14:41:32,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-21 14:41:32,054 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 37 states have (on average 3.8378378378378377) internal successors, (142), 36 states have internal predecessors, (142), 19 states have call successors, (59), 13 states have call predecessors, (59), 14 states have return successors, (59), 17 states have call predecessors, (59), 19 states have call successors, (59) Word has length 197 [2023-12-21 14:41:32,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:41:32,061 INFO L225 Difference]: With dead ends: 2536 [2023-12-21 14:41:32,061 INFO L226 Difference]: Without dead ends: 1385 [2023-12-21 14:41:32,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 423 SyntacticMatches, 7 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1497 ImplicationChecksByTransitivity, 55.0s TimeCoverageRelationStatistics Valid=973, Invalid=5029, Unknown=4, NotChecked=0, Total=6006 [2023-12-21 14:41:32,066 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 2499 mSDsluCounter, 4920 mSDsCounter, 0 mSdLazyCounter, 6731 mSolverCounterSat, 2414 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2499 SdHoareTripleChecker+Valid, 5345 SdHoareTripleChecker+Invalid, 9155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2414 IncrementalHoareTripleChecker+Valid, 6731 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:41:32,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2499 Valid, 5345 Invalid, 9155 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2414 Valid, 6731 Invalid, 10 Unknown, 0 Unchecked, 58.5s Time] [2023-12-21 14:41:32,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2023-12-21 14:41:32,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1307. [2023-12-21 14:41:32,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 789 states have (on average 1.4689480354879594) internal successors, (1159), 813 states have internal predecessors, (1159), 427 states have call successors, (427), 77 states have call predecessors, (427), 90 states have return successors, (516), 427 states have call predecessors, (516), 427 states have call successors, (516) [2023-12-21 14:41:32,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 2102 transitions. [2023-12-21 14:41:32,195 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 2102 transitions. Word has length 197 [2023-12-21 14:41:32,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:41:32,195 INFO L495 AbstractCegarLoop]: Abstraction has 1307 states and 2102 transitions. [2023-12-21 14:41:32,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 37 states have (on average 3.8378378378378377) internal successors, (142), 36 states have internal predecessors, (142), 19 states have call successors, (59), 13 states have call predecessors, (59), 14 states have return successors, (59), 17 states have call predecessors, (59), 19 states have call successors, (59) [2023-12-21 14:41:32,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 2102 transitions. [2023-12-21 14:41:32,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-12-21 14:41:32,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:41:32,204 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 10, 9, 9, 9, 9, 6, 2, 2, 2, 2, 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] [2023-12-21 14:41:32,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-21 14:41:32,413 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 [2023-12-21 14:41:32,413 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:41:32,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:41:32,413 INFO L85 PathProgramCache]: Analyzing trace with hash -612587110, now seen corresponding path program 1 times [2023-12-21 14:41:32,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:41:32,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021151565] [2023-12-21 14:41:32,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:41:32,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:41:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:41:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:41:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 14:41:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:41:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 14:41:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 14:41:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:41:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 14:41:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 14:41:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 14:41:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 14:41:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 14:41:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-21 14:41:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 14:41:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-21 14:41:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-21 14:41:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 14:41:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-21 14:41:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-21 14:41:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-21 14:41:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-21 14:41:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-21 14:41:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-21 14:41:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-21 14:41:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-21 14:41:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-21 14:41:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-21 14:41:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-21 14:41:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:32,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1351 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1349 trivial. 0 not checked. [2023-12-21 14:41:32,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:41:32,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021151565] [2023-12-21 14:41:32,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021151565] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:41:32,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:41:32,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:41:32,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772904456] [2023-12-21 14:41:32,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:41:32,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:41:32,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:41:32,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:41:32,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:41:32,989 INFO L87 Difference]: Start difference. First operand 1307 states and 2102 transitions. Second operand has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 3 states have call successors, (29) [2023-12-21 14:41:37,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:41,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:45,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:49,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:49,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:41:49,687 INFO L93 Difference]: Finished difference Result 2689 states and 4393 transitions. [2023-12-21 14:41:49,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 14:41:49,687 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 3 states have call successors, (29) Word has length 245 [2023-12-21 14:41:49,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:41:49,694 INFO L225 Difference]: With dead ends: 2689 [2023-12-21 14:41:49,694 INFO L226 Difference]: Without dead ends: 1465 [2023-12-21 14:41:49,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-21 14:41:49,699 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 96 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 225 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:41:49,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1144 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 499 Invalid, 4 Unknown, 0 Unchecked, 16.5s Time] [2023-12-21 14:41:49,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2023-12-21 14:41:49,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1319. [2023-12-21 14:41:49,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 801 states have (on average 1.4619225967540574) internal successors, (1171), 825 states have internal predecessors, (1171), 427 states have call successors, (427), 77 states have call predecessors, (427), 90 states have return successors, (516), 427 states have call predecessors, (516), 427 states have call successors, (516) [2023-12-21 14:41:49,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 2114 transitions. [2023-12-21 14:41:49,854 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 2114 transitions. Word has length 245 [2023-12-21 14:41:49,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:41:49,854 INFO L495 AbstractCegarLoop]: Abstraction has 1319 states and 2114 transitions. [2023-12-21 14:41:49,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 3 states have call successors, (29) [2023-12-21 14:41:49,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 2114 transitions. [2023-12-21 14:41:49,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-21 14:41:49,860 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:41:49,861 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 10, 8, 8, 8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 14:41:49,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 14:41:49,861 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:41:49,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:41:49,862 INFO L85 PathProgramCache]: Analyzing trace with hash 883371413, now seen corresponding path program 1 times [2023-12-21 14:41:49,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:41:49,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592954740] [2023-12-21 14:41:49,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:41:49,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:41:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:41:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:41:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 14:41:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:41:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 14:41:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 14:41:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:41:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 14:41:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 14:41:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 14:41:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 14:41:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 14:41:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 14:41:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-21 14:41:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-21 14:41:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-21 14:41:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 14:41:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-21 14:41:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-21 14:41:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-21 14:41:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-21 14:41:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-21 14:41:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-21 14:41:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-21 14:41:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-21 14:41:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-21 14:41:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-21 14:41:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:50,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1231 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2023-12-21 14:41:50,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:41:50,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592954740] [2023-12-21 14:41:50,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592954740] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:41:50,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128898680] [2023-12-21 14:41:50,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:41:50,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:41:50,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:41:50,491 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) [2023-12-21 14:41:50,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 14:41:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:51,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 1640 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-21 14:41:51,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:41:51,200 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 11 treesize of output 7 [2023-12-21 14:41:51,205 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 14:41:51,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-12-21 14:41:51,257 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 14:41:51,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 10 [2023-12-21 14:41:51,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1231 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 1107 trivial. 0 not checked. [2023-12-21 14:41:51,340 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 14:41:51,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128898680] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:41:51,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 14:41:51,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2023-12-21 14:41:51,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973853538] [2023-12-21 14:41:51,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:41:51,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 14:41:51,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:41:51,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 14:41:51,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-12-21 14:41:51,344 INFO L87 Difference]: Start difference. First operand 1319 states and 2114 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 4 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2023-12-21 14:41:55,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:59,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:42:03,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:42:04,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:42:04,807 INFO L93 Difference]: Finished difference Result 1715 states and 2716 transitions. [2023-12-21 14:42:04,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 14:42:04,807 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 4 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 239 [2023-12-21 14:42:04,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:42:04,813 INFO L225 Difference]: With dead ends: 1715 [2023-12-21 14:42:04,813 INFO L226 Difference]: Without dead ends: 1322 [2023-12-21 14:42:04,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-12-21 14:42:04,815 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 437 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 345 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 1632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:42:04,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 1482 Invalid, 1632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 1284 Invalid, 3 Unknown, 0 Unchecked, 13.2s Time] [2023-12-21 14:42:04,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2023-12-21 14:42:04,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1301. [2023-12-21 14:42:04,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 788 states have (on average 1.4517766497461928) internal successors, (1144), 811 states have internal predecessors, (1144), 423 states have call successors, (423), 76 states have call predecessors, (423), 89 states have return successors, (511), 424 states have call predecessors, (511), 423 states have call successors, (511) [2023-12-21 14:42:04,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 2078 transitions. [2023-12-21 14:42:04,969 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 2078 transitions. Word has length 239 [2023-12-21 14:42:04,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:42:04,970 INFO L495 AbstractCegarLoop]: Abstraction has 1301 states and 2078 transitions. [2023-12-21 14:42:04,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 4 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2023-12-21 14:42:04,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 2078 transitions. [2023-12-21 14:42:04,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-12-21 14:42:04,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:42:04,976 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 10, 7, 7, 7, 7, 6, 2, 2, 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] [2023-12-21 14:42:04,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 14:42:05,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:42:05,185 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:42:05,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:42:05,186 INFO L85 PathProgramCache]: Analyzing trace with hash 2120079398, now seen corresponding path program 1 times [2023-12-21 14:42:05,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:42:05,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36911858] [2023-12-21 14:42:05,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:42:05,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:42:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:42:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:42:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 14:42:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 14:42:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:42:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 14:42:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 14:42:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 14:42:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 14:42:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 14:42:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 14:42:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 14:42:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 14:42:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 14:42:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 14:42:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 14:42:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 14:42:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 14:42:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 14:42:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 14:42:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 14:42:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-21 14:42:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-21 14:42:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 14:42:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-12-21 14:42:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:06,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2023-12-21 14:42:06,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:42:06,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36911858] [2023-12-21 14:42:06,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36911858] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:42:06,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373241569] [2023-12-21 14:42:06,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:42:06,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:42:06,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:42:06,504 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:42:06,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 14:42:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:07,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 1486 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-21 14:42:07,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:42:07,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-21 14:42:07,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-21 14:42:07,171 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 5 treesize of output 3 [2023-12-21 14:42:07,173 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 5 treesize of output 3 [2023-12-21 14:42:07,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 448 proven. 0 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2023-12-21 14:42:07,254 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 14:42:07,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373241569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:42:07,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 14:42:07,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 14:42:07,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691228441] [2023-12-21 14:42:07,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:42:07,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 14:42:07,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:42:07,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 14:42:07,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-12-21 14:42:07,255 INFO L87 Difference]: Start difference. First operand 1301 states and 2078 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2023-12-21 14:42:11,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:42:11,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:42:11,582 INFO L93 Difference]: Finished difference Result 1466 states and 2319 transitions. [2023-12-21 14:42:11,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:42:11,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 220 [2023-12-21 14:42:11,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:42:11,586 INFO L225 Difference]: With dead ends: 1466 [2023-12-21 14:42:11,586 INFO L226 Difference]: Without dead ends: 1022 [2023-12-21 14:42:11,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 280 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-12-21 14:42:11,588 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 210 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:42:11,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 737 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 169 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-12-21 14:42:11,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2023-12-21 14:42:11,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1008. [2023-12-21 14:42:11,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 617 states have (on average 1.4651539708265802) internal successors, (904), 634 states have internal predecessors, (904), 319 states have call successors, (319), 59 states have call predecessors, (319), 71 states have return successors, (399), 322 states have call predecessors, (399), 319 states have call successors, (399) [2023-12-21 14:42:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1622 transitions. [2023-12-21 14:42:11,689 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1622 transitions. Word has length 220 [2023-12-21 14:42:11,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:42:11,689 INFO L495 AbstractCegarLoop]: Abstraction has 1008 states and 1622 transitions. [2023-12-21 14:42:11,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2023-12-21 14:42:11,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1622 transitions. [2023-12-21 14:42:11,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-21 14:42:11,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:42:11,694 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 14:42:11,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-21 14:42:11,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:42:11,904 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:42:11,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:42:11,904 INFO L85 PathProgramCache]: Analyzing trace with hash 295255767, now seen corresponding path program 1 times [2023-12-21 14:42:11,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:42:11,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4625826] [2023-12-21 14:42:11,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:42:11,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:42:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:42:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:42:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:12,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 14:42:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:42:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 14:42:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 14:42:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 14:42:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 14:42:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 14:42:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 14:42:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:42:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-21 14:42:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-21 14:42:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-21 14:42:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-21 14:42:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-21 14:42:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-21 14:42:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-21 14:42:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-21 14:42:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-21 14:42:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-21 14:42:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-21 14:42:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-21 14:42:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-21 14:42:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-21 14:42:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:12,329 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 927 trivial. 0 not checked. [2023-12-21 14:42:12,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:42:12,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4625826] [2023-12-21 14:42:12,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4625826] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:42:12,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812499987] [2023-12-21 14:42:12,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:42:12,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:42:12,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:42:12,331 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:42:12,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 14:42:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:13,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 1847 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 14:42:13,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:42:13,095 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2023-12-21 14:42:13,096 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 14:42:13,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812499987] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:42:13,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 14:42:13,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2023-12-21 14:42:13,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059496655] [2023-12-21 14:42:13,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:42:13,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:42:13,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:42:13,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:42:13,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:42:13,097 INFO L87 Difference]: Start difference. First operand 1008 states and 1622 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-21 14:42:13,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:42:13,221 INFO L93 Difference]: Finished difference Result 1952 states and 3248 transitions. [2023-12-21 14:42:13,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:42:13,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 218 [2023-12-21 14:42:13,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:42:13,225 INFO L225 Difference]: With dead ends: 1952 [2023-12-21 14:42:13,225 INFO L226 Difference]: Without dead ends: 1016 [2023-12-21 14:42:13,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:42:13,229 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 0 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:42:13,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 648 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:42:13,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2023-12-21 14:42:13,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1016. [2023-12-21 14:42:13,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 625 states have (on average 1.4592) internal successors, (912), 642 states have internal predecessors, (912), 319 states have call successors, (319), 59 states have call predecessors, (319), 71 states have return successors, (399), 322 states have call predecessors, (399), 319 states have call successors, (399) [2023-12-21 14:42:13,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1630 transitions. [2023-12-21 14:42:13,386 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1630 transitions. Word has length 218 [2023-12-21 14:42:13,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:42:13,386 INFO L495 AbstractCegarLoop]: Abstraction has 1016 states and 1630 transitions. [2023-12-21 14:42:13,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-21 14:42:13,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1630 transitions. [2023-12-21 14:42:13,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-21 14:42:13,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:42:13,391 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 14:42:13,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-21 14:42:13,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-21 14:42:13,600 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:42:13,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:42:13,601 INFO L85 PathProgramCache]: Analyzing trace with hash 970415893, now seen corresponding path program 1 times [2023-12-21 14:42:13,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:42:13,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114447369] [2023-12-21 14:42:13,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:42:13,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:42:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:14,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:42:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:42:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 14:42:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:42:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 14:42:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:15,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 14:42:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 14:42:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 14:42:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 14:42:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 14:42:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:42:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:42:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-21 14:42:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-21 14:42:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-21 14:42:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-21 14:42:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-21 14:42:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-21 14:42:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-21 14:42:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-21 14:42:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-21 14:42:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-21 14:42:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-21 14:42:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-21 14:42:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-21 14:42:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-21 14:42:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:15,608 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2023-12-21 14:42:15,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:42:15,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114447369] [2023-12-21 14:42:15,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114447369] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:42:15,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614559248] [2023-12-21 14:42:15,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:42:15,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:42:15,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:42:15,610 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:42:15,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-21 14:42:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:42:16,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 1850 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-21 14:42:16,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:42:16,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-21 14:42:17,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 14:42:17,591 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 14:42:17,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 42 treesize of output 48 [2023-12-21 14:42:17,745 INFO L349 Elim1Store]: treesize reduction 48, result has 63.1 percent of original size [2023-12-21 14:42:17,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 38 treesize of output 106 [2023-12-21 14:42:18,087 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-21 14:42:18,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-12-21 14:42:18,123 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-21 14:42:18,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 21 [2023-12-21 14:42:18,128 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 384 proven. 51 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2023-12-21 14:42:18,128 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:42:18,190 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 12 treesize of output 8 [2023-12-21 14:42:18,296 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 56 treesize of output 54 [2023-12-21 14:42:18,618 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 28 treesize of output 26 [2023-12-21 14:42:18,691 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 28 treesize of output 26 [2023-12-21 14:42:18,831 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 919 trivial. 0 not checked. [2023-12-21 14:42:18,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614559248] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:42:18,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:42:18,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 13] total 41 [2023-12-21 14:42:18,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910023005] [2023-12-21 14:42:18,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:42:18,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-12-21 14:42:18,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:42:18,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-12-21 14:42:18,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1488, Unknown=2, NotChecked=0, Total=1640 [2023-12-21 14:42:18,833 INFO L87 Difference]: Start difference. First operand 1016 states and 1630 transitions. Second operand has 41 states, 39 states have (on average 3.923076923076923) internal successors, (153), 35 states have internal predecessors, (153), 21 states have call successors, (63), 13 states have call predecessors, (63), 15 states have return successors, (63), 18 states have call predecessors, (63), 21 states have call successors, (63) [2023-12-21 14:42:23,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:42:27,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:42:31,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:42:35,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:42:39,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:42:43,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:42:47,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-21 14:42:51,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:42:55,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:42:59,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:43:03,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:43:07,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:43:11,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:43:15,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:43:19,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:43:23,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:43:24,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:43:28,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:43:32,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:43:37,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:43:40,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-21 14:43:44,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:43:46,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:43:48,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:43:52,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:43:59,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:44:01,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:44:03,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:44:09,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:44:09,981 INFO L93 Difference]: Finished difference Result 2380 states and 3744 transitions. [2023-12-21 14:44:09,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-12-21 14:44:09,981 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 39 states have (on average 3.923076923076923) internal successors, (153), 35 states have internal predecessors, (153), 21 states have call successors, (63), 13 states have call predecessors, (63), 15 states have return successors, (63), 18 states have call predecessors, (63), 21 states have call successors, (63) Word has length 218 [2023-12-21 14:44:09,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:44:09,989 INFO L225 Difference]: With dead ends: 2380 [2023-12-21 14:44:09,990 INFO L226 Difference]: Without dead ends: 1398 [2023-12-21 14:44:09,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 473 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1772 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1261, Invalid=6927, Unknown=2, NotChecked=0, Total=8190 [2023-12-21 14:44:09,994 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 2783 mSDsluCounter, 6950 mSDsCounter, 0 mSdLazyCounter, 10664 mSolverCounterSat, 2520 mSolverCounterUnsat, 29 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 105.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2783 SdHoareTripleChecker+Valid, 7490 SdHoareTripleChecker+Invalid, 13213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2520 IncrementalHoareTripleChecker+Valid, 10664 IncrementalHoareTripleChecker+Invalid, 29 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:44:09,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2783 Valid, 7490 Invalid, 13213 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2520 Valid, 10664 Invalid, 29 Unknown, 0 Unchecked, 106.2s Time] [2023-12-21 14:44:09,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1398 states. [2023-12-21 14:44:10,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1398 to 1322. [2023-12-21 14:44:10,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 813 states have (on average 1.3763837638376384) internal successors, (1119), 841 states have internal predecessors, (1119), 400 states have call successors, (400), 85 states have call predecessors, (400), 108 states have return successors, (472), 403 states have call predecessors, (472), 400 states have call successors, (472) [2023-12-21 14:44:10,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1991 transitions. [2023-12-21 14:44:10,209 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1991 transitions. Word has length 218 [2023-12-21 14:44:10,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:44:10,210 INFO L495 AbstractCegarLoop]: Abstraction has 1322 states and 1991 transitions. [2023-12-21 14:44:10,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 39 states have (on average 3.923076923076923) internal successors, (153), 35 states have internal predecessors, (153), 21 states have call successors, (63), 13 states have call predecessors, (63), 15 states have return successors, (63), 18 states have call predecessors, (63), 21 states have call successors, (63) [2023-12-21 14:44:10,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1991 transitions. [2023-12-21 14:44:10,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-21 14:44:10,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:44:10,215 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 14:44:10,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-21 14:44:10,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-21 14:44:10,426 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:44:10,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:44:10,426 INFO L85 PathProgramCache]: Analyzing trace with hash -764493778, now seen corresponding path program 1 times [2023-12-21 14:44:10,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:44:10,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526219398] [2023-12-21 14:44:10,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:44:10,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:44:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:44:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:44:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:44:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 14:44:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:44:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:44:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 14:44:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:44:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 14:44:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 14:44:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:44:11,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 14:44:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 14:44:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:44:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 14:44:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:44:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:44:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 14:44:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 14:44:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 14:44:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-21 14:44:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-21 14:44:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 14:44:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 14:44:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-21 14:44:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-21 14:44:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-21 14:44:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-21 14:44:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-21 14:44:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-21 14:44:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 14:44:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:11,833 INFO L134 CoverageAnalysis]: Checked inductivity of 927 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2023-12-21 14:44:11,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:44:11,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526219398] [2023-12-21 14:44:11,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526219398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:44:11,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:44:11,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 14:44:11,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872946423] [2023-12-21 14:44:11,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:44:11,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 14:44:11,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:44:11,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 14:44:11,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-12-21 14:44:11,835 INFO L87 Difference]: Start difference. First operand 1322 states and 1991 transitions. Second operand has 13 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (27), 5 states have call predecessors, (27), 3 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) [2023-12-21 14:44:15,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:19,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:22,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:44:22,602 INFO L93 Difference]: Finished difference Result 3683 states and 5464 transitions. [2023-12-21 14:44:22,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 14:44:22,603 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (27), 5 states have call predecessors, (27), 3 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) Word has length 219 [2023-12-21 14:44:22,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:44:22,634 INFO L225 Difference]: With dead ends: 3683 [2023-12-21 14:44:22,634 INFO L226 Difference]: Without dead ends: 2357 [2023-12-21 14:44:22,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=219, Invalid=483, Unknown=0, NotChecked=0, Total=702 [2023-12-21 14:44:22,639 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 703 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 631 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 631 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-12-21 14:44:22,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 711 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [631 Valid, 1389 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2023-12-21 14:44:22,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2023-12-21 14:44:22,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 1730. [2023-12-21 14:44:22,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1062 states have (on average 1.2787193973634652) internal successors, (1358), 1091 states have internal predecessors, (1358), 507 states have call successors, (507), 113 states have call predecessors, (507), 160 states have return successors, (635), 533 states have call predecessors, (635), 507 states have call successors, (635) [2023-12-21 14:44:22,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2500 transitions. [2023-12-21 14:44:22,950 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2500 transitions. Word has length 219 [2023-12-21 14:44:22,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:44:22,951 INFO L495 AbstractCegarLoop]: Abstraction has 1730 states and 2500 transitions. [2023-12-21 14:44:22,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (27), 5 states have call predecessors, (27), 3 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) [2023-12-21 14:44:22,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2500 transitions. [2023-12-21 14:44:22,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-21 14:44:22,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:44:22,959 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 14:44:22,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 14:44:22,959 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:44:22,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:44:22,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1112569452, now seen corresponding path program 1 times [2023-12-21 14:44:22,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:44:22,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882326340] [2023-12-21 14:44:22,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:44:22,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:44:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:44:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:44:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:44:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 14:44:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:44:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:44:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 14:44:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:44:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 14:44:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 14:44:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:44:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 14:44:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 14:44:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:44:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 14:44:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:44:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:44:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 14:44:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 14:44:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 14:44:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-21 14:44:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-21 14:44:24,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 14:44:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 14:44:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-21 14:44:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-21 14:44:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-21 14:44:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-21 14:44:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-21 14:44:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-21 14:44:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 14:44:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:24,863 INFO L134 CoverageAnalysis]: Checked inductivity of 927 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2023-12-21 14:44:24,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:44:24,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882326340] [2023-12-21 14:44:24,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882326340] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:44:24,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353913409] [2023-12-21 14:44:24,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:44:24,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:44:24,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:44:24,878 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:44:24,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-21 14:44:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:44:27,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 1810 conjuncts, 95 conjunts are in the unsatisfiable core [2023-12-21 14:44:27,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:44:27,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-21 14:44:27,913 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 5 treesize of output 3 [2023-12-21 14:44:27,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-21 14:44:27,984 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 15 treesize of output 11 [2023-12-21 14:44:28,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 14:44:28,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2023-12-21 14:44:28,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-21 14:44:28,966 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 9 treesize of output 3 [2023-12-21 14:44:28,968 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 5 treesize of output 3 [2023-12-21 14:44:29,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-12-21 14:44:29,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2023-12-21 14:44:29,046 INFO L134 CoverageAnalysis]: Checked inductivity of 927 backedges. 404 proven. 56 refuted. 0 times theorem prover too weak. 467 trivial. 0 not checked. [2023-12-21 14:44:29,047 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:44:29,176 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 33 treesize of output 29 [2023-12-21 14:44:29,178 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 31 treesize of output 27 [2023-12-21 14:44:29,671 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 22 treesize of output 20 [2023-12-21 14:44:29,674 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 [2023-12-21 14:44:29,678 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 [2023-12-21 14:44:30,750 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 [2023-12-21 14:44:30,752 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 [2023-12-21 14:44:30,761 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 22 treesize of output 20 [2023-12-21 14:44:30,918 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 [2023-12-21 14:44:30,920 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 [2023-12-21 14:44:30,936 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 24 [2023-12-21 14:44:31,940 INFO L134 CoverageAnalysis]: Checked inductivity of 927 backedges. 16 proven. 28 refuted. 0 times theorem prover too weak. 883 trivial. 0 not checked. [2023-12-21 14:44:31,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353913409] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:44:31,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:44:31,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 33, 25] total 69 [2023-12-21 14:44:31,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298006584] [2023-12-21 14:44:31,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:44:31,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2023-12-21 14:44:31,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:44:31,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2023-12-21 14:44:31,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=499, Invalid=4193, Unknown=0, NotChecked=0, Total=4692 [2023-12-21 14:44:31,946 INFO L87 Difference]: Start difference. First operand 1730 states and 2500 transitions. Second operand has 69 states, 63 states have (on average 2.9047619047619047) internal successors, (183), 61 states have internal predecessors, (183), 33 states have call successors, (69), 22 states have call predecessors, (69), 24 states have return successors, (69), 32 states have call predecessors, (69), 33 states have call successors, (69) [2023-12-21 14:44:36,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:40,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:44,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:48,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:53,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:57,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:45:01,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:45:02,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:45:06,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:45:11,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:45:15,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:45:19,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:45:23,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:45:27,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:45:32,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:45:36,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:45:40,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:45:41,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:45:45,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:47:34,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:47:34,565 INFO L93 Difference]: Finished difference Result 7197 states and 10316 transitions. [2023-12-21 14:47:34,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 413 states. [2023-12-21 14:47:34,566 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 63 states have (on average 2.9047619047619047) internal successors, (183), 61 states have internal predecessors, (183), 33 states have call successors, (69), 22 states have call predecessors, (69), 24 states have return successors, (69), 32 states have call predecessors, (69), 33 states have call successors, (69) Word has length 219 [2023-12-21 14:47:34,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:47:34,597 INFO L225 Difference]: With dead ends: 7197 [2023-12-21 14:47:34,597 INFO L226 Difference]: Without dead ends: 6289 [2023-12-21 14:47:34,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1027 GetRequests, 548 SyntacticMatches, 2 SemanticMatches, 477 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94503 ImplicationChecksByTransitivity, 64.3s TimeCoverageRelationStatistics Valid=20683, Invalid=208279, Unknown=0, NotChecked=0, Total=228962 [2023-12-21 14:47:34,623 INFO L413 NwaCegarLoop]: 885 mSDtfsCounter, 18024 mSDsluCounter, 12453 mSDsCounter, 0 mSdLazyCounter, 42089 mSolverCounterSat, 17732 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 111.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18038 SdHoareTripleChecker+Valid, 13338 SdHoareTripleChecker+Invalid, 59838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 17732 IncrementalHoareTripleChecker+Valid, 42089 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 116.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:47:34,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18038 Valid, 13338 Invalid, 59838 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [17732 Valid, 42089 Invalid, 17 Unknown, 0 Unchecked, 116.5s Time] [2023-12-21 14:47:34,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6289 states. [2023-12-21 14:47:35,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6289 to 3490. [2023-12-21 14:47:35,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3490 states, 2151 states have (on average 1.3226406322640631) internal successors, (2845), 2238 states have internal predecessors, (2845), 985 states have call successors, (985), 262 states have call predecessors, (985), 353 states have return successors, (1254), 1011 states have call predecessors, (1254), 985 states have call successors, (1254) [2023-12-21 14:47:35,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3490 states to 3490 states and 5084 transitions. [2023-12-21 14:47:35,423 INFO L78 Accepts]: Start accepts. Automaton has 3490 states and 5084 transitions. Word has length 219 [2023-12-21 14:47:35,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:47:35,425 INFO L495 AbstractCegarLoop]: Abstraction has 3490 states and 5084 transitions. [2023-12-21 14:47:35,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 63 states have (on average 2.9047619047619047) internal successors, (183), 61 states have internal predecessors, (183), 33 states have call successors, (69), 22 states have call predecessors, (69), 24 states have return successors, (69), 32 states have call predecessors, (69), 33 states have call successors, (69) [2023-12-21 14:47:35,425 INFO L276 IsEmpty]: Start isEmpty. Operand 3490 states and 5084 transitions. [2023-12-21 14:47:35,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-12-21 14:47:35,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:47:35,438 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 10, 9, 9, 9, 9, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 14:47:35,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-21 14:47:35,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-21 14:47:35,659 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:47:35,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:47:35,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1902459691, now seen corresponding path program 1 times [2023-12-21 14:47:35,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:47:35,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595994352] [2023-12-21 14:47:35,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:47:35,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:47:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:36,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:47:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:36,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:47:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:36,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:47:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:36,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 14:47:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:36,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:47:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:36,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:47:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 14:47:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:47:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 14:47:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:47:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:47:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 14:47:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:47:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:47:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 14:47:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:47:37,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 14:47:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:47:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:47:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 14:47:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:47:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 14:47:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 14:47:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:47:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 14:47:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-21 14:47:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-21 14:47:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-21 14:47:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-21 14:47:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-21 14:47:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-21 14:47:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-21 14:47:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-21 14:47:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-21 14:47:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-21 14:47:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-21 14:47:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-21 14:47:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 14:47:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:37,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2023-12-21 14:47:37,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:47:37,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595994352] [2023-12-21 14:47:37,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595994352] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:47:37,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762437364] [2023-12-21 14:47:37,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:47:37,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:47:37,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:47:37,201 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:47:37,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-21 14:47:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:47:38,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 1937 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-21 14:47:38,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:47:38,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-21 14:47:38,299 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 5 treesize of output 3 [2023-12-21 14:47:38,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 412 proven. 12 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2023-12-21 14:47:38,318 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:47:38,417 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 12 treesize of output 8 [2023-12-21 14:47:38,499 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 28 treesize of output 26 [2023-12-21 14:47:38,637 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 28 treesize of output 26 [2023-12-21 14:47:38,699 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 28 treesize of output 26 [2023-12-21 14:47:38,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2023-12-21 14:47:38,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762437364] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:47:38,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:47:38,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 32 [2023-12-21 14:47:38,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820130863] [2023-12-21 14:47:38,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:47:38,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-21 14:47:38,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:47:38,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-21 14:47:38,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=881, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:47:38,836 INFO L87 Difference]: Start difference. First operand 3490 states and 5084 transitions. Second operand has 32 states, 29 states have (on average 5.344827586206897) internal successors, (155), 26 states have internal predecessors, (155), 16 states have call successors, (75), 11 states have call predecessors, (75), 10 states have return successors, (66), 13 states have call predecessors, (66), 16 states have call successors, (66) [2023-12-21 14:47:42,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:47:46,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:47:51,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:47:55,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:47:59,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:48:03,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:48:07,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:48:11,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:48:15,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:48:19,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:48:24,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:48:28,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:48:32,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:48:36,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:48:44,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:48:44,064 INFO L93 Difference]: Finished difference Result 5690 states and 8376 transitions. [2023-12-21 14:48:44,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-21 14:48:44,064 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 5.344827586206897) internal successors, (155), 26 states have internal predecessors, (155), 16 states have call successors, (75), 11 states have call predecessors, (75), 10 states have return successors, (66), 13 states have call predecessors, (66), 16 states have call successors, (66) Word has length 257 [2023-12-21 14:48:44,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:48:44,075 INFO L225 Difference]: With dead ends: 5690 [2023-12-21 14:48:44,075 INFO L226 Difference]: Without dead ends: 3032 [2023-12-21 14:48:44,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 583 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1287 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1099, Invalid=4451, Unknown=0, NotChecked=0, Total=5550 [2023-12-21 14:48:44,082 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 2009 mSDsluCounter, 4438 mSDsCounter, 0 mSdLazyCounter, 6974 mSolverCounterSat, 1587 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 4908 SdHoareTripleChecker+Invalid, 8575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1587 IncrementalHoareTripleChecker+Valid, 6974 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:48:44,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2030 Valid, 4908 Invalid, 8575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1587 Valid, 6974 Invalid, 14 Unknown, 0 Unchecked, 61.7s Time] [2023-12-21 14:48:44,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2023-12-21 14:48:44,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 2848. [2023-12-21 14:48:44,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 1733 states have (on average 1.3306405077899597) internal successors, (2306), 1815 states have internal predecessors, (2306), 853 states have call successors, (853), 191 states have call predecessors, (853), 261 states have return successors, (1046), 863 states have call predecessors, (1046), 853 states have call successors, (1046) [2023-12-21 14:48:44,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 4205 transitions. [2023-12-21 14:48:44,747 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 4205 transitions. Word has length 257 [2023-12-21 14:48:44,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:48:44,748 INFO L495 AbstractCegarLoop]: Abstraction has 2848 states and 4205 transitions. [2023-12-21 14:48:44,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 5.344827586206897) internal successors, (155), 26 states have internal predecessors, (155), 16 states have call successors, (75), 11 states have call predecessors, (75), 10 states have return successors, (66), 13 states have call predecessors, (66), 16 states have call successors, (66) [2023-12-21 14:48:44,748 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 4205 transitions. [2023-12-21 14:48:44,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-12-21 14:48:44,757 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:48:44,757 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 10, 10, 10, 10, 10, 6, 3, 3, 2, 2, 2, 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] [2023-12-21 14:48:44,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-21 14:48:44,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-21 14:48:44,968 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:48:44,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:48:44,968 INFO L85 PathProgramCache]: Analyzing trace with hash 766076431, now seen corresponding path program 1 times [2023-12-21 14:48:44,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:48:44,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417599774] [2023-12-21 14:48:44,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:48:44,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:48:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:48:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:48:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 14:48:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:48:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 14:48:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 14:48:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:48:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 14:48:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 14:48:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:48:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 14:48:45,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 14:48:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:48:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 14:48:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 14:48:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 14:48:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 14:48:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 14:48:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-21 14:48:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-21 14:48:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 14:48:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-12-21 14:48:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-21 14:48:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-21 14:48:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 14:48:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-21 14:48:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-21 14:48:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-21 14:48:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-21 14:48:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 14:48:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:45,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1392 trivial. 0 not checked. [2023-12-21 14:48:45,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:48:45,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417599774] [2023-12-21 14:48:45,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417599774] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:48:45,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889506953] [2023-12-21 14:48:45,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:48:45,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:48:45,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:48:45,436 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:48:45,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-21 14:48:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:46,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 1965 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 14:48:46,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:48:46,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 971 trivial. 0 not checked. [2023-12-21 14:48:46,392 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 14:48:46,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889506953] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:48:46,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 14:48:46,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-12-21 14:48:46,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122916833] [2023-12-21 14:48:46,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:48:46,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:48:46,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:48:46,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:48:46,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-21 14:48:46,394 INFO L87 Difference]: Start difference. First operand 2848 states and 4205 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-21 14:48:47,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:48:47,200 INFO L93 Difference]: Finished difference Result 5393 states and 8047 transitions. [2023-12-21 14:48:47,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:48:47,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 268 [2023-12-21 14:48:47,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:48:47,213 INFO L225 Difference]: With dead ends: 5393 [2023-12-21 14:48:47,213 INFO L226 Difference]: Without dead ends: 3349 [2023-12-21 14:48:47,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-21 14:48:47,218 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 39 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:48:47,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 649 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:48:47,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3349 states. [2023-12-21 14:48:47,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3349 to 2855. [2023-12-21 14:48:47,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2855 states, 1740 states have (on average 1.3293103448275863) internal successors, (2313), 1822 states have internal predecessors, (2313), 853 states have call successors, (853), 191 states have call predecessors, (853), 261 states have return successors, (1046), 863 states have call predecessors, (1046), 853 states have call successors, (1046) [2023-12-21 14:48:47,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 4212 transitions. [2023-12-21 14:48:47,908 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 4212 transitions. Word has length 268 [2023-12-21 14:48:47,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:48:47,909 INFO L495 AbstractCegarLoop]: Abstraction has 2855 states and 4212 transitions. [2023-12-21 14:48:47,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-21 14:48:47,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 4212 transitions. [2023-12-21 14:48:47,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-12-21 14:48:47,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:48:47,917 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 10, 10, 10, 10, 10, 6, 3, 3, 2, 2, 2, 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] [2023-12-21 14:48:47,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-21 14:48:48,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-21 14:48:48,128 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:48:48,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:48:48,128 INFO L85 PathProgramCache]: Analyzing trace with hash 230267740, now seen corresponding path program 1 times [2023-12-21 14:48:48,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:48:48,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871294927] [2023-12-21 14:48:48,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:48:48,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:48:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:48:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:48:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 14:48:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:48:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 14:48:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 14:48:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:48:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 14:48:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 14:48:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:48:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:49,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 14:48:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:49,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 14:48:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:48:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:49,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 14:48:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 14:48:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 14:48:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:48:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 14:48:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 14:48:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-21 14:48:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-21 14:48:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 14:48:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-12-21 14:48:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-21 14:48:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-21 14:48:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 14:48:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-21 14:48:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-21 14:48:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-21 14:48:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-21 14:48:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 14:48:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:49,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1386 trivial. 0 not checked. [2023-12-21 14:48:49,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:48:49,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871294927] [2023-12-21 14:48:49,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871294927] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:48:49,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917587546] [2023-12-21 14:48:49,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:48:49,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:48:49,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:48:49,835 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:48:49,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-21 14:48:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:48:50,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 1965 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-21 14:48:50,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:48:50,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-12-21 14:48:50,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-21 14:48:50,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2023-12-21 14:48:50,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-21 14:48:50,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 560 proven. 13 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2023-12-21 14:48:50,967 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:48:51,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-21 14:48:51,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917587546] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:48:51,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 14:48:51,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9] total 25 [2023-12-21 14:48:51,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503473878] [2023-12-21 14:48:51,200 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 14:48:51,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-21 14:48:51,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:48:51,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-21 14:48:51,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=665, Unknown=0, NotChecked=0, Total=756 [2023-12-21 14:48:51,201 INFO L87 Difference]: Start difference. First operand 2855 states and 4212 transitions. Second operand has 25 states, 23 states have (on average 6.043478260869565) internal successors, (139), 20 states have internal predecessors, (139), 15 states have call successors, (61), 9 states have call predecessors, (61), 9 states have return successors, (61), 13 states have call predecessors, (61), 15 states have call successors, (61) [2023-12-21 14:48:55,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:48:59,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:49:03,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:49:07,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:49:11,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:49:15,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:49:19,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:49:23,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:49:27,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:49:31,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:49:35,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:49:39,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:49:43,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:49:47,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:49:54,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:49:54,095 INFO L93 Difference]: Finished difference Result 3134 states and 4574 transitions. [2023-12-21 14:49:54,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-21 14:49:54,095 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 6.043478260869565) internal successors, (139), 20 states have internal predecessors, (139), 15 states have call successors, (61), 9 states have call predecessors, (61), 9 states have return successors, (61), 13 states have call predecessors, (61), 15 states have call successors, (61) Word has length 268 [2023-12-21 14:49:54,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:49:54,101 INFO L225 Difference]: With dead ends: 3134 [2023-12-21 14:49:54,101 INFO L226 Difference]: Without dead ends: 1883 [2023-12-21 14:49:54,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 906 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=775, Invalid=3131, Unknown=0, NotChecked=0, Total=3906 [2023-12-21 14:49:54,106 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 1709 mSDsluCounter, 3522 mSDsCounter, 0 mSdLazyCounter, 5032 mSolverCounterSat, 1523 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1737 SdHoareTripleChecker+Valid, 3936 SdHoareTripleChecker+Invalid, 6568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1523 IncrementalHoareTripleChecker+Valid, 5032 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:49:54,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1737 Valid, 3936 Invalid, 6568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1523 Valid, 5032 Invalid, 13 Unknown, 0 Unchecked, 59.7s Time] [2023-12-21 14:49:54,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2023-12-21 14:49:54,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1841. [2023-12-21 14:49:54,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1841 states, 1131 states have (on average 1.292661361626879) internal successors, (1462), 1182 states have internal predecessors, (1462), 523 states have call successors, (523), 139 states have call predecessors, (523), 186 states have return successors, (629), 532 states have call predecessors, (629), 523 states have call successors, (629) [2023-12-21 14:49:54,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2614 transitions. [2023-12-21 14:49:54,819 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2614 transitions. Word has length 268 [2023-12-21 14:49:54,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:49:54,821 INFO L495 AbstractCegarLoop]: Abstraction has 1841 states and 2614 transitions. [2023-12-21 14:49:54,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 6.043478260869565) internal successors, (139), 20 states have internal predecessors, (139), 15 states have call successors, (61), 9 states have call predecessors, (61), 9 states have return successors, (61), 13 states have call predecessors, (61), 15 states have call successors, (61) [2023-12-21 14:49:54,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2614 transitions. [2023-12-21 14:49:54,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-21 14:49:54,825 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:49:54,825 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 10, 7, 7, 7, 7, 6, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 14:49:54,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-21 14:49:55,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:49:55,037 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:49:55,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:49:55,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1881696586, now seen corresponding path program 1 times [2023-12-21 14:49:55,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:49:55,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922316723] [2023-12-21 14:49:55,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:49:55,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:49:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:02,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:50:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:05,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:50:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:05,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:50:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:05,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 14:50:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:05,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:50:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:05,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:50:05,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:06,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 14:50:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:06,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:50:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:06,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 14:50:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:07,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 14:50:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:07,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:50:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:07,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 14:50:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:07,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 14:50:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:07,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:50:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:07,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 14:50:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:07,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:50:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:50:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-21 14:50:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:50:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:50:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 14:50:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 14:50:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 14:50:08,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 14:50:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 14:50:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 14:50:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 14:50:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-21 14:50:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-21 14:50:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 14:50:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-12-21 14:50:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-21 14:50:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-21 14:50:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 14:50:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:08,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 29 proven. 274 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2023-12-21 14:50:08,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:50:08,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922316723] [2023-12-21 14:50:08,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922316723] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:50:08,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126042480] [2023-12-21 14:50:08,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:50:08,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:50:08,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:50:08,422 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:50:08,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-21 14:50:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:10,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 1956 conjuncts, 177 conjunts are in the unsatisfiable core [2023-12-21 14:50:10,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:50:10,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-12-21 14:50:11,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-21 14:50:11,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 13 [2023-12-21 14:50:11,080 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 11 treesize of output 7 [2023-12-21 14:50:11,238 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 13 treesize of output 9 [2023-12-21 14:50:11,336 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 10 treesize of output 8 [2023-12-21 14:50:11,971 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 11 treesize of output 7 [2023-12-21 14:50:12,209 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 21 treesize of output 17 [2023-12-21 14:50:12,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1 [2023-12-21 14:50:13,013 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 14:50:13,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 43 [2023-12-21 14:50:13,022 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 [2023-12-21 14:50:13,051 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 34 treesize of output 28 [2023-12-21 14:50:13,378 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2023-12-21 14:50:13,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 48 [2023-12-21 14:50:13,387 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 24 [2023-12-21 14:50:13,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 50 [2023-12-21 14:50:13,783 INFO L349 Elim1Store]: treesize reduction 140, result has 25.1 percent of original size [2023-12-21 14:50:13,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 100 [2023-12-21 14:50:13,794 INFO L349 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2023-12-21 14:50:13,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 1 [2023-12-21 14:50:33,872 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 14:50:33,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 184 [2023-12-21 14:50:38,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 38 [2023-12-21 14:50:38,585 INFO L349 Elim1Store]: treesize reduction 116, result has 23.2 percent of original size [2023-12-21 14:50:38,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 76 [2023-12-21 14:50:38,594 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-12-21 14:50:38,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 1 Received shutdown request... [2023-12-21 14:51:06,947 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 14:51:06,947 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 14:51:07,114 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 14:51:07,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-21 14:51:07,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:51:07,315 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 239 with TraceHistMax 21,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 87 known predicates. [2023-12-21 14:51:07,319 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:51:07,320 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 14:51:07,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 02:51:07 BoogieIcfgContainer [2023-12-21 14:51:07,323 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 14:51:07,324 INFO L158 Benchmark]: Toolchain (without parser) took 840747.09ms. Allocated memory was 295.7MB in the beginning and 1.3GB in the end (delta: 1.0GB). Free memory was 253.2MB in the beginning and 862.8MB in the end (delta: -609.5MB). Peak memory consumption was 439.4MB. Max. memory is 8.0GB. [2023-12-21 14:51:07,324 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 176.2MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 14:51:07,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 678.89ms. Allocated memory is still 295.7MB. Free memory was 253.2MB in the beginning and 216.4MB in the end (delta: 36.8MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-12-21 14:51:07,324 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.11ms. Allocated memory is still 295.7MB. Free memory was 216.4MB in the beginning and 210.6MB in the end (delta: 5.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-21 14:51:07,324 INFO L158 Benchmark]: Boogie Preprocessor took 141.99ms. Allocated memory is still 295.7MB. Free memory was 210.2MB in the beginning and 201.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-21 14:51:07,324 INFO L158 Benchmark]: RCFGBuilder took 4951.80ms. Allocated memory is still 295.7MB. Free memory was 201.5MB in the beginning and 190.1MB in the end (delta: 11.4MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. [2023-12-21 14:51:07,326 INFO L158 Benchmark]: TraceAbstraction took 834852.95ms. Allocated memory was 295.7MB in the beginning and 1.3GB in the end (delta: 1.0GB). Free memory was 189.6MB in the beginning and 862.8MB in the end (delta: -673.2MB). Peak memory consumption was 374.9MB. Max. memory is 8.0GB. [2023-12-21 14:51:07,326 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 176.2MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 678.89ms. Allocated memory is still 295.7MB. Free memory was 253.2MB in the beginning and 216.4MB in the end (delta: 36.8MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 115.11ms. Allocated memory is still 295.7MB. Free memory was 216.4MB in the beginning and 210.6MB in the end (delta: 5.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 141.99ms. Allocated memory is still 295.7MB. Free memory was 210.2MB in the beginning and 201.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 4951.80ms. Allocated memory is still 295.7MB. Free memory was 201.5MB in the beginning and 190.1MB in the end (delta: 11.4MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. * TraceAbstraction took 834852.95ms. Allocated memory was 295.7MB in the beginning and 1.3GB in the end (delta: 1.0GB). Free memory was 189.6MB in the beginning and 862.8MB in the end (delta: -673.2MB). Peak memory consumption was 374.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 779]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 779). Cancelled while NwaCegarLoop was analyzing trace of length 239 with TraceHistMax 21,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 87 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 212 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 834.8s, OverallIterations: 20, TraceHistogramMax: 24, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 663.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 122 mSolverCounterUnknown, 33763 SdHoareTripleChecker+Valid, 574.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33394 mSDsluCounter, 50497 SdHoareTripleChecker+Invalid, 564.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43293 mSDsCounter, 30341 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82547 IncrementalHoareTripleChecker+Invalid, 113010 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30341 mSolverCounterUnsat, 7204 mSDtfsCounter, 82547 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6347 GetRequests, 5316 SyntacticMatches, 18 SemanticMatches, 1013 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102955 ImplicationChecksByTransitivity, 138.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3490occurred in iteration=16, InterpolantAutomatonStates: 777, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.5s AutomataMinimizationTime, 19 MinimizatonAttempts, 4707 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 4.9s SatisfiabilityAnalysisTime, 78.5s InterpolantComputationTime, 6432 NumberOfCodeBlocks, 6343 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 7765 ConstructedInterpolants, 49 QuantifiedInterpolants, 27761 SizeOfPredicates, 70 NumberOfNonLiveVariables, 20301 ConjunctsInSsa, 339 ConjunctsInUnsatCore, 39 InterpolantComputations, 11 PerfectInterpolantSequences, 34824/35201 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown