/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/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:25:43,342 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:25:43,413 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 04:25:43,418 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:25:43,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:25:43,452 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:25:43,453 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:25:43,453 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:25:43,454 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:25:43,456 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:25:43,456 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:25:43,457 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:25:43,457 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:25:43,457 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:25:43,458 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:25:43,458 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:25:43,458 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:25:43,458 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:25:43,459 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:25:43,459 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:25:43,459 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:25:43,460 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:25:43,460 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:25:43,461 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:25:43,461 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:25:43,461 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:25:43,461 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:25:43,461 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:25:43,462 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:25:43,462 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:25:43,463 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:25:43,463 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:25:43,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:25:43,463 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:25:43,463 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:25:43,464 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:25:43,464 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:25:43,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:25:43,464 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:25:43,464 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:25:43,464 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:25:43,465 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:25:43,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:25:43,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:25:43,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:25:43,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:25:43,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:25:43,715 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:25:43,715 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:25:43,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.i [2023-12-16 04:25:44,952 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:25:45,120 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:25:45,120 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.i [2023-12-16 04:25:45,132 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49466b2a/d2264656bec54d3093e563c81d046d25/FLAG475115e52 [2023-12-16 04:25:45,143 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49466b2a/d2264656bec54d3093e563c81d046d25 [2023-12-16 04:25:45,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:25:45,146 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:25:45,147 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:25:45,147 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:25:45,151 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:25:45,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:25:45" (1/1) ... [2023-12-16 04:25:45,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bbbe7a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:45, skipping insertion in model container [2023-12-16 04:25:45,153 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:25:45" (1/1) ... [2023-12-16 04:25:45,180 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:25:45,313 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.i[915,928] [2023-12-16 04:25:45,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:25:45,378 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:25:45,386 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.i[915,928] [2023-12-16 04:25:45,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:25:45,441 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:25:45,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:45 WrapperNode [2023-12-16 04:25:45,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:25:45,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:25:45,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:25:45,443 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:25:45,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:45" (1/1) ... [2023-12-16 04:25:45,464 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:45" (1/1) ... [2023-12-16 04:25:45,505 INFO L138 Inliner]: procedures = 26, calls = 168, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 453 [2023-12-16 04:25:45,505 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:25:45,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:25:45,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:25:45,506 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:25:45,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:45" (1/1) ... [2023-12-16 04:25:45,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:45" (1/1) ... [2023-12-16 04:25:45,524 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:45" (1/1) ... [2023-12-16 04:25:45,558 INFO L175 MemorySlicer]: Split 122 memory accesses to 16 slices as follows [2, 3, 6, 6, 29, 6, 6, 14, 8, 7, 9, 8, 8, 3, 3, 4]. 24 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 17 writes are split as follows [0, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2023-12-16 04:25:45,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:45" (1/1) ... [2023-12-16 04:25:45,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:45" (1/1) ... [2023-12-16 04:25:45,586 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:45" (1/1) ... [2023-12-16 04:25:45,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:45" (1/1) ... [2023-12-16 04:25:45,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:45" (1/1) ... [2023-12-16 04:25:45,597 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:45" (1/1) ... [2023-12-16 04:25:45,613 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:25:45,614 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:25:45,614 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:25:45,614 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:25:45,615 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:45" (1/1) ... [2023-12-16 04:25:45,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:25:45,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:45,661 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) [2023-12-16 04:25:45,676 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 [2023-12-16 04:25:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:25:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 04:25:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 04:25:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-16 04:25:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-16 04:25:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-16 04:25:45,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-16 04:25:45,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-16 04:25:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-16 04:25:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-16 04:25:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-16 04:25:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-16 04:25:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-16 04:25:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-16 04:25:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-16 04:25:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-12-16 04:25:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-12-16 04:25:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 04:25:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 04:25:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-16 04:25:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-16 04:25:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-16 04:25:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-16 04:25:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-16 04:25:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-16 04:25:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-16 04:25:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-16 04:25:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-16 04:25:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-16 04:25:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-16 04:25:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-16 04:25:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-12-16 04:25:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-12-16 04:25:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:25:45,700 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:25:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:25:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 04:25:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 04:25:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 04:25:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-16 04:25:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-16 04:25:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-16 04:25:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-16 04:25:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-16 04:25:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-16 04:25:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-16 04:25:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-16 04:25:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-16 04:25:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-16 04:25:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-16 04:25:45,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-16 04:25:45,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:25:45,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:25:45,871 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:25:45,873 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:25:46,313 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:25:46,366 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:25:46,366 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:25:46,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:25:46 BoogieIcfgContainer [2023-12-16 04:25:46,367 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:25:46,369 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:25:46,369 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:25:46,372 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:25:46,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:25:45" (1/3) ... [2023-12-16 04:25:46,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3c1816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:25:46, skipping insertion in model container [2023-12-16 04:25:46,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:25:45" (2/3) ... [2023-12-16 04:25:46,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3c1816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:25:46, skipping insertion in model container [2023-12-16 04:25:46,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:25:46" (3/3) ... [2023-12-16 04:25:46,374 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-5.i [2023-12-16 04:25:46,388 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:25:46,388 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:25:46,434 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:25:46,439 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;@1b22797, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:25:46,440 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:25:46,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 66 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:25:46,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:25:46,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:46,453 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:46,454 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:46,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:46,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1626294328, now seen corresponding path program 1 times [2023-12-16 04:25:46,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:46,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795717749] [2023-12-16 04:25:46,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:46,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:46,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:46,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795717749] [2023-12-16 04:25:46,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 04:25:46,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004021621] [2023-12-16 04:25:46,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:46,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:46,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:46,748 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) [2023-12-16 04:25:46,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 04:25:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 04:25:47,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:47,144 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-12-16 04:25:47,144 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:47,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004021621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:47,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:47,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:25:47,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765875926] [2023-12-16 04:25:47,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:47,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 04:25:47,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:47,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 04:25:47,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:25:47,187 INFO L87 Difference]: Start difference. First operand has 88 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 66 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:25:47,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:47,250 INFO L93 Difference]: Finished difference Result 173 states and 276 transitions. [2023-12-16 04:25:47,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 04:25:47,252 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 142 [2023-12-16 04:25:47,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:47,261 INFO L225 Difference]: With dead ends: 173 [2023-12-16 04:25:47,262 INFO L226 Difference]: Without dead ends: 86 [2023-12-16 04:25:47,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:25:47,269 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:47,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:25:47,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-16 04:25:47,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-12-16 04:25:47,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 64 states have internal predecessors, (84), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:25:47,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 124 transitions. [2023-12-16 04:25:47,306 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 124 transitions. Word has length 142 [2023-12-16 04:25:47,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:47,306 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 124 transitions. [2023-12-16 04:25:47,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:25:47,307 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 124 transitions. [2023-12-16 04:25:47,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:25:47,310 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:47,310 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:47,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 04:25:47,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-16 04:25:47,518 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:47,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:47,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1696479216, now seen corresponding path program 1 times [2023-12-16 04:25:47,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:47,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845004249] [2023-12-16 04:25:47,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:47,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:47,608 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:47,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1629607448] [2023-12-16 04:25:47,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:47,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:47,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:47,610 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) [2023-12-16 04:25:47,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 04:25:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:47,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:25:47,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:47,939 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:47,939 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:47,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:47,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845004249] [2023-12-16 04:25:47,940 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:47,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629607448] [2023-12-16 04:25:47,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629607448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:47,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:47,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:25:47,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208625366] [2023-12-16 04:25:47,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:47,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:25:47,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:47,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:25:47,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:25:47,943 INFO L87 Difference]: Start difference. First operand 86 states and 124 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:48,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:48,015 INFO L93 Difference]: Finished difference Result 183 states and 264 transitions. [2023-12-16 04:25:48,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:25:48,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 142 [2023-12-16 04:25:48,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:48,021 INFO L225 Difference]: With dead ends: 183 [2023-12-16 04:25:48,021 INFO L226 Difference]: Without dead ends: 98 [2023-12-16 04:25:48,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:48,027 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 21 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:48,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 350 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:25:48,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-12-16 04:25:48,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 88. [2023-12-16 04:25:48,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 66 states have (on average 1.303030303030303) internal successors, (86), 66 states have internal predecessors, (86), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:25:48,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 126 transitions. [2023-12-16 04:25:48,044 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 126 transitions. Word has length 142 [2023-12-16 04:25:48,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:48,045 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 126 transitions. [2023-12-16 04:25:48,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:48,046 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 126 transitions. [2023-12-16 04:25:48,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:25:48,048 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:48,048 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:48,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-16 04:25:48,248 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,SelfDestructingSolverStorable1 [2023-12-16 04:25:48,249 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:48,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:48,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1789141454, now seen corresponding path program 1 times [2023-12-16 04:25:48,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:48,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536512975] [2023-12-16 04:25:48,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:48,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:48,300 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:48,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [545799468] [2023-12-16 04:25:48,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:48,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:48,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:48,302 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) [2023-12-16 04:25:48,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 04:25:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:48,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:25:48,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:48,583 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:48,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:48,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:48,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536512975] [2023-12-16 04:25:48,584 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:48,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545799468] [2023-12-16 04:25:48,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545799468] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:48,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:48,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:25:48,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709372652] [2023-12-16 04:25:48,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:48,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:25:48,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:48,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:25:48,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:25:48,588 INFO L87 Difference]: Start difference. First operand 88 states and 126 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:48,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:48,642 INFO L93 Difference]: Finished difference Result 183 states and 262 transitions. [2023-12-16 04:25:48,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:25:48,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 142 [2023-12-16 04:25:48,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:48,646 INFO L225 Difference]: With dead ends: 183 [2023-12-16 04:25:48,646 INFO L226 Difference]: Without dead ends: 96 [2023-12-16 04:25:48,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:48,650 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 12 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:48,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 348 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:25:48,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-16 04:25:48,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 90. [2023-12-16 04:25:48,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 68 states have internal predecessors, (88), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:25:48,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 128 transitions. [2023-12-16 04:25:48,669 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 128 transitions. Word has length 142 [2023-12-16 04:25:48,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:48,670 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 128 transitions. [2023-12-16 04:25:48,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:48,670 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 128 transitions. [2023-12-16 04:25:48,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:25:48,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:48,673 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:48,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 04:25:48,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:48,874 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:48,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:48,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1846399756, now seen corresponding path program 1 times [2023-12-16 04:25:48,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:48,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495340101] [2023-12-16 04:25:48,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:48,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:48,910 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:48,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1321999652] [2023-12-16 04:25:48,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:48,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:48,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:48,912 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) [2023-12-16 04:25:48,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 04:25:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:25:49,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:49,144 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:49,144 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:49,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:49,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495340101] [2023-12-16 04:25:49,145 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:49,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321999652] [2023-12-16 04:25:49,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321999652] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:49,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:49,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:25:49,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611799029] [2023-12-16 04:25:49,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:49,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:25:49,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:49,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:25:49,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:25:49,148 INFO L87 Difference]: Start difference. First operand 90 states and 128 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:49,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:49,189 INFO L93 Difference]: Finished difference Result 183 states and 260 transitions. [2023-12-16 04:25:49,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:25:49,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 142 [2023-12-16 04:25:49,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:49,195 INFO L225 Difference]: With dead ends: 183 [2023-12-16 04:25:49,195 INFO L226 Difference]: Without dead ends: 94 [2023-12-16 04:25:49,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:49,198 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 3 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:49,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 348 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:25:49,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-16 04:25:49,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2023-12-16 04:25:49,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 70 states have internal predecessors, (90), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:25:49,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 130 transitions. [2023-12-16 04:25:49,214 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 130 transitions. Word has length 142 [2023-12-16 04:25:49,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:49,215 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 130 transitions. [2023-12-16 04:25:49,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:49,215 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 130 transitions. [2023-12-16 04:25:49,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:25:49,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:49,222 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:49,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 04:25:49,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:49,423 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:49,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:49,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1846459338, now seen corresponding path program 1 times [2023-12-16 04:25:49,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:49,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299779959] [2023-12-16 04:25:49,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:49,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:49,469 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:49,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1004860712] [2023-12-16 04:25:49,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:49,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:49,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:49,471 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) [2023-12-16 04:25:49,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 04:25:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:49,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:25:49,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:49,698 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:49,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:49,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:49,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299779959] [2023-12-16 04:25:49,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:49,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004860712] [2023-12-16 04:25:49,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004860712] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:49,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:49,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:25:49,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960979892] [2023-12-16 04:25:49,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:49,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:25:49,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:49,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:25:49,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:25:49,702 INFO L87 Difference]: Start difference. First operand 92 states and 130 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:49,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:49,746 INFO L93 Difference]: Finished difference Result 210 states and 296 transitions. [2023-12-16 04:25:49,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:25:49,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 142 [2023-12-16 04:25:49,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:49,748 INFO L225 Difference]: With dead ends: 210 [2023-12-16 04:25:49,748 INFO L226 Difference]: Without dead ends: 119 [2023-12-16 04:25:49,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:49,750 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 46 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:49,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 374 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:25:49,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-12-16 04:25:49,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 94. [2023-12-16 04:25:49,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 72 states have internal predecessors, (92), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:25:49,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2023-12-16 04:25:49,766 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 142 [2023-12-16 04:25:49,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:49,767 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2023-12-16 04:25:49,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:49,767 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2023-12-16 04:25:49,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-16 04:25:49,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:49,770 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:49,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 04:25:49,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:49,977 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:49,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:49,977 INFO L85 PathProgramCache]: Analyzing trace with hash -331266065, now seen corresponding path program 1 times [2023-12-16 04:25:49,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:49,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346524199] [2023-12-16 04:25:49,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:49,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:50,026 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:50,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [486670398] [2023-12-16 04:25:50,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:50,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:50,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:50,028 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) [2023-12-16 04:25:50,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 04:25:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:50,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 04:25:50,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:50,258 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 15 treesize of output 7 [2023-12-16 04:25:50,264 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:50,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:50,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:50,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346524199] [2023-12-16 04:25:50,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:50,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486670398] [2023-12-16 04:25:50,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486670398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:50,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:50,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:25:50,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132484396] [2023-12-16 04:25:50,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:50,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:25:50,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:50,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:25:50,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:25:50,267 INFO L87 Difference]: Start difference. First operand 94 states and 132 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:50,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:50,285 INFO L93 Difference]: Finished difference Result 212 states and 297 transitions. [2023-12-16 04:25:50,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:25:50,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2023-12-16 04:25:50,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:50,286 INFO L225 Difference]: With dead ends: 212 [2023-12-16 04:25:50,286 INFO L226 Difference]: Without dead ends: 119 [2023-12-16 04:25:50,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:25:50,287 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 32 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:50,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 242 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:25:50,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-12-16 04:25:50,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 94. [2023-12-16 04:25:50,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.2638888888888888) internal successors, (91), 72 states have internal predecessors, (91), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:25:50,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 131 transitions. [2023-12-16 04:25:50,293 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 131 transitions. Word has length 144 [2023-12-16 04:25:50,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:50,293 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 131 transitions. [2023-12-16 04:25:50,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:50,293 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 131 transitions. [2023-12-16 04:25:50,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-16 04:25:50,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:50,295 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:50,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 04:25:50,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:50,507 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:50,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:50,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1611129743, now seen corresponding path program 1 times [2023-12-16 04:25:50,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:50,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503535291] [2023-12-16 04:25:50,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:50,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:50,552 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:50,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2143123439] [2023-12-16 04:25:50,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:50,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:50,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:50,554 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) [2023-12-16 04:25:50,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 04:25:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:50,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 04:25:50,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:50,775 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 15 treesize of output 7 [2023-12-16 04:25:50,787 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:50,787 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:50,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:50,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503535291] [2023-12-16 04:25:50,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:50,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143123439] [2023-12-16 04:25:50,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143123439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:50,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:50,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:25:50,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662884356] [2023-12-16 04:25:50,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:50,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:25:50,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:50,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:25:50,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:25:50,792 INFO L87 Difference]: Start difference. First operand 94 states and 131 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:50,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:50,813 INFO L93 Difference]: Finished difference Result 187 states and 261 transitions. [2023-12-16 04:25:50,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:25:50,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2023-12-16 04:25:50,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:50,815 INFO L225 Difference]: With dead ends: 187 [2023-12-16 04:25:50,816 INFO L226 Difference]: Without dead ends: 94 [2023-12-16 04:25:50,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:25:50,817 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:50,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:25:50,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-16 04:25:50,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-12-16 04:25:50,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.25) internal successors, (90), 72 states have internal predecessors, (90), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:25:50,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 130 transitions. [2023-12-16 04:25:50,823 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 130 transitions. Word has length 144 [2023-12-16 04:25:50,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:50,824 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 130 transitions. [2023-12-16 04:25:50,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:50,824 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 130 transitions. [2023-12-16 04:25:50,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-16 04:25:50,825 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:50,825 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:50,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-16 04:25:51,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:51,033 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:51,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:51,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1662697046, now seen corresponding path program 1 times [2023-12-16 04:25:51,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:51,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803754461] [2023-12-16 04:25:51,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:51,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:51,066 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:51,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1988113773] [2023-12-16 04:25:51,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:51,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:51,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:51,068 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) [2023-12-16 04:25:51,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-16 04:25:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 04:25:51,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:51,281 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 15 treesize of output 7 [2023-12-16 04:25:51,286 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:51,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:51,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:51,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803754461] [2023-12-16 04:25:51,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:51,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988113773] [2023-12-16 04:25:51,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988113773] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:51,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:51,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:25:51,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685060666] [2023-12-16 04:25:51,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:51,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:25:51,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:51,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:25:51,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:25:51,288 INFO L87 Difference]: Start difference. First operand 94 states and 130 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:51,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:51,304 INFO L93 Difference]: Finished difference Result 187 states and 259 transitions. [2023-12-16 04:25:51,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:25:51,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2023-12-16 04:25:51,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:51,306 INFO L225 Difference]: With dead ends: 187 [2023-12-16 04:25:51,306 INFO L226 Difference]: Without dead ends: 94 [2023-12-16 04:25:51,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:25:51,307 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 1 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:51,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 228 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:25:51,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-16 04:25:51,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-12-16 04:25:51,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 72 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:25:51,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 129 transitions. [2023-12-16 04:25:51,311 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 129 transitions. Word has length 146 [2023-12-16 04:25:51,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:51,312 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 129 transitions. [2023-12-16 04:25:51,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:51,312 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 129 transitions. [2023-12-16 04:25:51,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-16 04:25:51,313 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:51,313 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:51,320 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-16 04:25:51,519 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,SelfDestructingSolverStorable7 [2023-12-16 04:25:51,520 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:51,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:51,520 INFO L85 PathProgramCache]: Analyzing trace with hash -26246696, now seen corresponding path program 1 times [2023-12-16 04:25:51,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:51,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680398493] [2023-12-16 04:25:51,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:51,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:51,549 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:51,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1186997772] [2023-12-16 04:25:51,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:51,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:51,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:51,551 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) [2023-12-16 04:25:51,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-16 04:25:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:51,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-16 04:25:51,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:51,823 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 [2023-12-16 04:25:51,873 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 04:25:51,873 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:25:52,020 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:52,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:52,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680398493] [2023-12-16 04:25:52,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:52,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186997772] [2023-12-16 04:25:52,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186997772] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:25:52,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:25:52,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 13 [2023-12-16 04:25:52,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672571694] [2023-12-16 04:25:52,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:52,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:25:52,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:52,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:25:52,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-16 04:25:52,023 INFO L87 Difference]: Start difference. First operand 94 states and 129 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:52,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:52,176 INFO L93 Difference]: Finished difference Result 268 states and 371 transitions. [2023-12-16 04:25:52,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 04:25:52,176 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2023-12-16 04:25:52,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:52,178 INFO L225 Difference]: With dead ends: 268 [2023-12-16 04:25:52,178 INFO L226 Difference]: Without dead ends: 175 [2023-12-16 04:25:52,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2023-12-16 04:25:52,179 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 216 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:52,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 1228 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:25:52,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-12-16 04:25:52,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 92. [2023-12-16 04:25:52,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 70 states have (on average 1.2285714285714286) internal successors, (86), 70 states have internal predecessors, (86), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:25:52,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 126 transitions. [2023-12-16 04:25:52,184 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 126 transitions. Word has length 146 [2023-12-16 04:25:52,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:52,185 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 126 transitions. [2023-12-16 04:25:52,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:52,185 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 126 transitions. [2023-12-16 04:25:52,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-16 04:25:52,186 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:52,187 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:52,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-16 04:25:52,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:52,394 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:52,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:52,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1532718106, now seen corresponding path program 1 times [2023-12-16 04:25:52,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:52,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403865631] [2023-12-16 04:25:52,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:52,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:52,425 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:52,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [649154888] [2023-12-16 04:25:52,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:52,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:52,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:52,427 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) [2023-12-16 04:25:52,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-16 04:25:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:52,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 04:25:52,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:52,669 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:52,669 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:52,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:52,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403865631] [2023-12-16 04:25:52,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:52,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649154888] [2023-12-16 04:25:52,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649154888] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:52,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:52,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:25:52,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270179662] [2023-12-16 04:25:52,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:52,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:25:52,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:52,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:25:52,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:52,672 INFO L87 Difference]: Start difference. First operand 92 states and 126 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:52,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:52,716 INFO L93 Difference]: Finished difference Result 201 states and 275 transitions. [2023-12-16 04:25:52,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:25:52,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2023-12-16 04:25:52,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:52,717 INFO L225 Difference]: With dead ends: 201 [2023-12-16 04:25:52,717 INFO L226 Difference]: Without dead ends: 110 [2023-12-16 04:25:52,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:25:52,718 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 54 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:52,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 442 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:25:52,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-12-16 04:25:52,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 95. [2023-12-16 04:25:52,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 73 states have (on average 1.2191780821917808) internal successors, (89), 73 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:25:52,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 129 transitions. [2023-12-16 04:25:52,723 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 129 transitions. Word has length 146 [2023-12-16 04:25:52,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:52,723 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 129 transitions. [2023-12-16 04:25:52,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:52,723 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 129 transitions. [2023-12-16 04:25:52,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 04:25:52,724 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:52,725 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:52,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-16 04:25:52,932 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,SelfDestructingSolverStorable9 [2023-12-16 04:25:52,932 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:52,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:52,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1280630248, now seen corresponding path program 1 times [2023-12-16 04:25:52,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:52,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240415325] [2023-12-16 04:25:52,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:52,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:52,968 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:52,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1436475708] [2023-12-16 04:25:52,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:52,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:52,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:52,981 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) [2023-12-16 04:25:52,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-16 04:25:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:53,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 04:25:53,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:53,231 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 17 treesize of output 9 [2023-12-16 04:25:53,240 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:53,240 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:53,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:53,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240415325] [2023-12-16 04:25:53,241 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:53,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436475708] [2023-12-16 04:25:53,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436475708] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:53,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:53,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:25:53,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445365481] [2023-12-16 04:25:53,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:53,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:25:53,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:53,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:25:53,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:53,242 INFO L87 Difference]: Start difference. First operand 95 states and 129 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:53,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:53,295 INFO L93 Difference]: Finished difference Result 254 states and 339 transitions. [2023-12-16 04:25:53,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:25:53,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2023-12-16 04:25:53,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:53,297 INFO L225 Difference]: With dead ends: 254 [2023-12-16 04:25:53,297 INFO L226 Difference]: Without dead ends: 160 [2023-12-16 04:25:53,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:25:53,298 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 84 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:53,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 436 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:25:53,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-12-16 04:25:53,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 142. [2023-12-16 04:25:53,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 115 states have (on average 1.2173913043478262) internal successors, (140), 116 states have internal predecessors, (140), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 04:25:53,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 188 transitions. [2023-12-16 04:25:53,304 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 188 transitions. Word has length 148 [2023-12-16 04:25:53,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:53,305 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 188 transitions. [2023-12-16 04:25:53,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:53,305 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 188 transitions. [2023-12-16 04:25:53,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 04:25:53,306 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:53,306 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:53,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-16 04:25:53,513 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,SelfDestructingSolverStorable10 [2023-12-16 04:25:53,514 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:53,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:53,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1143921882, now seen corresponding path program 1 times [2023-12-16 04:25:53,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:53,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855925229] [2023-12-16 04:25:53,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:53,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:53,545 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:53,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [322700040] [2023-12-16 04:25:53,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:53,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:53,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:53,547 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) [2023-12-16 04:25:53,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-16 04:25:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:53,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 04:25:53,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:53,805 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 15 treesize of output 7 [2023-12-16 04:25:53,809 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 15 treesize of output 7 [2023-12-16 04:25:53,815 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:53,815 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:53,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:53,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855925229] [2023-12-16 04:25:53,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:53,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322700040] [2023-12-16 04:25:53,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322700040] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:53,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:53,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:25:53,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890480598] [2023-12-16 04:25:53,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:53,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:25:53,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:53,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:25:53,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:25:53,817 INFO L87 Difference]: Start difference. First operand 142 states and 188 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:53,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:53,832 INFO L93 Difference]: Finished difference Result 283 states and 375 transitions. [2023-12-16 04:25:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:25:53,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2023-12-16 04:25:53,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:53,834 INFO L225 Difference]: With dead ends: 283 [2023-12-16 04:25:53,834 INFO L226 Difference]: Without dead ends: 142 [2023-12-16 04:25:53,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:25:53,835 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 32 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:53,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 195 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:25:53,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-16 04:25:53,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-12-16 04:25:53,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 115 states have (on average 1.2) internal successors, (138), 116 states have internal predecessors, (138), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 04:25:53,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 186 transitions. [2023-12-16 04:25:53,841 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 186 transitions. Word has length 148 [2023-12-16 04:25:53,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:53,842 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 186 transitions. [2023-12-16 04:25:53,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:53,842 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 186 transitions. [2023-12-16 04:25:53,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 04:25:53,844 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:53,844 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:53,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-16 04:25:54,051 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,SelfDestructingSolverStorable11 [2023-12-16 04:25:54,052 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:54,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:54,052 INFO L85 PathProgramCache]: Analyzing trace with hash -313637823, now seen corresponding path program 1 times [2023-12-16 04:25:54,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:54,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084079834] [2023-12-16 04:25:54,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:54,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:54,078 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:54,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [138717462] [2023-12-16 04:25:54,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:54,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:54,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:54,080 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) [2023-12-16 04:25:54,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-16 04:25:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:54,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-16 04:25:54,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:54,331 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 17 treesize of output 13 [2023-12-16 04:25:54,414 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:54,414 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:54,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:54,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084079834] [2023-12-16 04:25:54,414 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:54,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138717462] [2023-12-16 04:25:54,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138717462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:54,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:54,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 04:25:54,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657974484] [2023-12-16 04:25:54,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:54,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:25:54,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:54,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:25:54,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:25:54,416 INFO L87 Difference]: Start difference. First operand 142 states and 186 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:54,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:54,586 INFO L93 Difference]: Finished difference Result 191 states and 247 transitions. [2023-12-16 04:25:54,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 04:25:54,587 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2023-12-16 04:25:54,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:54,588 INFO L225 Difference]: With dead ends: 191 [2023-12-16 04:25:54,588 INFO L226 Difference]: Without dead ends: 189 [2023-12-16 04:25:54,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-12-16 04:25:54,589 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 110 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:54,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 634 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:25:54,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-12-16 04:25:54,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 170. [2023-12-16 04:25:54,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 133 states have (on average 1.1729323308270676) internal successors, (156), 135 states have internal predecessors, (156), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-16 04:25:54,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 220 transitions. [2023-12-16 04:25:54,597 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 220 transitions. Word has length 150 [2023-12-16 04:25:54,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:54,597 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 220 transitions. [2023-12-16 04:25:54,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:54,597 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 220 transitions. [2023-12-16 04:25:54,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 04:25:54,598 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:54,599 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:54,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-16 04:25:54,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-16 04:25:54,806 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:54,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:54,807 INFO L85 PathProgramCache]: Analyzing trace with hash -313578241, now seen corresponding path program 1 times [2023-12-16 04:25:54,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:54,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440585910] [2023-12-16 04:25:54,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:54,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:54,829 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:54,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196268830] [2023-12-16 04:25:54,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:54,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:54,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:54,831 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) [2023-12-16 04:25:54,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-16 04:25:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 04:25:55,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:55,077 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 17 treesize of output 13 [2023-12-16 04:25:55,124 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:55,125 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:55,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:55,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440585910] [2023-12-16 04:25:55,125 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:55,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196268830] [2023-12-16 04:25:55,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196268830] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:55,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:55,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:25:55,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544212444] [2023-12-16 04:25:55,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:55,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:25:55,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:55,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:25:55,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:55,127 INFO L87 Difference]: Start difference. First operand 170 states and 220 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:55,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:55,245 INFO L93 Difference]: Finished difference Result 360 states and 469 transitions. [2023-12-16 04:25:55,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:25:55,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2023-12-16 04:25:55,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:55,247 INFO L225 Difference]: With dead ends: 360 [2023-12-16 04:25:55,247 INFO L226 Difference]: Without dead ends: 211 [2023-12-16 04:25:55,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:25:55,248 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 104 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:55,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 593 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:25:55,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-12-16 04:25:55,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 198. [2023-12-16 04:25:55,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 148 states have (on average 1.1418918918918919) internal successors, (169), 150 states have internal predecessors, (169), 44 states have call successors, (44), 5 states have call predecessors, (44), 5 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-16 04:25:55,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 257 transitions. [2023-12-16 04:25:55,261 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 257 transitions. Word has length 150 [2023-12-16 04:25:55,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:55,262 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 257 transitions. [2023-12-16 04:25:55,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:55,262 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 257 transitions. [2023-12-16 04:25:55,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 04:25:55,263 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:55,264 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:55,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-16 04:25:55,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:55,471 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:55,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:55,472 INFO L85 PathProgramCache]: Analyzing trace with hash -256319939, now seen corresponding path program 1 times [2023-12-16 04:25:55,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:55,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692814692] [2023-12-16 04:25:55,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:55,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:55,499 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:55,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1347564457] [2023-12-16 04:25:55,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:55,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:55,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:55,501 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:25:55,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-16 04:25:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:55,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 04:25:55,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:55,761 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 9 [2023-12-16 04:25:55,790 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:55,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:55,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:55,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692814692] [2023-12-16 04:25:55,791 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:55,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347564457] [2023-12-16 04:25:55,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347564457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:55,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:55,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:25:55,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279291091] [2023-12-16 04:25:55,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:55,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:25:55,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:55,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:25:55,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:55,793 INFO L87 Difference]: Start difference. First operand 198 states and 257 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:55,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:55,850 INFO L93 Difference]: Finished difference Result 369 states and 476 transitions. [2023-12-16 04:25:55,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:25:55,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2023-12-16 04:25:55,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:55,852 INFO L225 Difference]: With dead ends: 369 [2023-12-16 04:25:55,852 INFO L226 Difference]: Without dead ends: 220 [2023-12-16 04:25:55,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:25:55,853 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 112 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:55,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 640 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:25:55,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-12-16 04:25:55,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 198. [2023-12-16 04:25:55,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 148 states have (on average 1.1283783783783783) internal successors, (167), 150 states have internal predecessors, (167), 44 states have call successors, (44), 5 states have call predecessors, (44), 5 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-16 04:25:55,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 255 transitions. [2023-12-16 04:25:55,866 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 255 transitions. Word has length 150 [2023-12-16 04:25:55,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:55,866 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 255 transitions. [2023-12-16 04:25:55,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:55,866 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 255 transitions. [2023-12-16 04:25:55,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 04:25:55,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:55,868 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:55,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-16 04:25:56,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-16 04:25:56,076 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:56,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:56,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1065666565, now seen corresponding path program 1 times [2023-12-16 04:25:56,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:56,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703982653] [2023-12-16 04:25:56,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:56,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:56,102 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:56,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [508948333] [2023-12-16 04:25:56,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:56,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:56,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:56,104 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:25:56,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-16 04:25:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 04:25:56,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:56,365 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:56,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:56,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:56,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703982653] [2023-12-16 04:25:56,366 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:56,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508948333] [2023-12-16 04:25:56,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508948333] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:56,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:56,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:25:56,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364138921] [2023-12-16 04:25:56,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:56,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:25:56,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:56,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:25:56,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:56,368 INFO L87 Difference]: Start difference. First operand 198 states and 255 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:56,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:56,409 INFO L93 Difference]: Finished difference Result 363 states and 461 transitions. [2023-12-16 04:25:56,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:25:56,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2023-12-16 04:25:56,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:56,411 INFO L225 Difference]: With dead ends: 363 [2023-12-16 04:25:56,411 INFO L226 Difference]: Without dead ends: 214 [2023-12-16 04:25:56,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:25:56,412 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 18 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:56,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 435 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:25:56,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-12-16 04:25:56,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 204. [2023-12-16 04:25:56,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 154 states have (on average 1.1233766233766234) internal successors, (173), 156 states have internal predecessors, (173), 44 states have call successors, (44), 5 states have call predecessors, (44), 5 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-16 04:25:56,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 261 transitions. [2023-12-16 04:25:56,424 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 261 transitions. Word has length 150 [2023-12-16 04:25:56,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:56,424 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 261 transitions. [2023-12-16 04:25:56,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:56,424 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 261 transitions. [2023-12-16 04:25:56,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 04:25:56,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:56,425 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:56,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-16 04:25:56,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-16 04:25:56,633 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:56,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:56,633 INFO L85 PathProgramCache]: Analyzing trace with hash -308746224, now seen corresponding path program 1 times [2023-12-16 04:25:56,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:56,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467195] [2023-12-16 04:25:56,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:56,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:56,657 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:56,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [892692804] [2023-12-16 04:25:56,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:56,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:56,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:56,658 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:25:56,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-16 04:25:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:56,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-16 04:25:56,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:56,897 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 [2023-12-16 04:25:56,927 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 52 treesize of output 40 [2023-12-16 04:25:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 04:25:56,952 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:25:57,062 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:57,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:57,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467195] [2023-12-16 04:25:57,062 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:57,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892692804] [2023-12-16 04:25:57,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892692804] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:25:57,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:25:57,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2023-12-16 04:25:57,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45037725] [2023-12-16 04:25:57,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:57,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:25:57,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:57,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:25:57,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:25:57,064 INFO L87 Difference]: Start difference. First operand 204 states and 261 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:57,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:57,331 INFO L93 Difference]: Finished difference Result 416 states and 521 transitions. [2023-12-16 04:25:57,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 04:25:57,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 151 [2023-12-16 04:25:57,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:57,333 INFO L225 Difference]: With dead ends: 416 [2023-12-16 04:25:57,333 INFO L226 Difference]: Without dead ends: 261 [2023-12-16 04:25:57,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2023-12-16 04:25:57,334 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 153 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:57,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 856 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:25:57,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-12-16 04:25:57,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 217. [2023-12-16 04:25:57,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 162 states have (on average 1.117283950617284) internal successors, (181), 164 states have internal predecessors, (181), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-16 04:25:57,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 277 transitions. [2023-12-16 04:25:57,346 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 277 transitions. Word has length 151 [2023-12-16 04:25:57,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:57,347 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 277 transitions. [2023-12-16 04:25:57,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:57,347 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 277 transitions. [2023-12-16 04:25:57,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 04:25:57,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:57,348 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:57,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-16 04:25:57,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-16 04:25:57,555 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:57,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:57,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1229082198, now seen corresponding path program 1 times [2023-12-16 04:25:57,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:57,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663777876] [2023-12-16 04:25:57,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:57,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:57,576 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:57,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [381026615] [2023-12-16 04:25:57,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:57,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:57,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:57,578 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:25:57,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-16 04:25:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:57,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-16 04:25:57,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:58,016 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 43 treesize of output 35 [2023-12-16 04:25:58,024 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 39 treesize of output 31 [2023-12-16 04:25:58,031 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 35 treesize of output 27 [2023-12-16 04:25:58,042 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 31 treesize of output 23 [2023-12-16 04:25:58,066 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:58,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:58,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:58,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663777876] [2023-12-16 04:25:58,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:58,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381026615] [2023-12-16 04:25:58,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381026615] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:58,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:58,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:25:58,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876162093] [2023-12-16 04:25:58,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:58,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:25:58,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:58,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:25:58,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:25:58,069 INFO L87 Difference]: Start difference. First operand 217 states and 277 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:58,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:58,338 INFO L93 Difference]: Finished difference Result 512 states and 632 transitions. [2023-12-16 04:25:58,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:25:58,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2023-12-16 04:25:58,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:58,341 INFO L225 Difference]: With dead ends: 512 [2023-12-16 04:25:58,341 INFO L226 Difference]: Without dead ends: 344 [2023-12-16 04:25:58,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:25:58,342 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 71 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:58,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 358 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:25:58,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-12-16 04:25:58,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 207. [2023-12-16 04:25:58,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 174 states have (on average 1.132183908045977) internal successors, (197), 175 states have internal predecessors, (197), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 04:25:58,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 253 transitions. [2023-12-16 04:25:58,356 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 253 transitions. Word has length 152 [2023-12-16 04:25:58,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:58,357 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 253 transitions. [2023-12-16 04:25:58,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:58,357 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 253 transitions. [2023-12-16 04:25:58,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 04:25:58,358 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:58,358 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:58,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-16 04:25:58,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-16 04:25:58,567 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:58,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:58,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1378220619, now seen corresponding path program 1 times [2023-12-16 04:25:58,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:58,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191715375] [2023-12-16 04:25:58,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:58,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:58,601 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:58,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1290823766] [2023-12-16 04:25:58,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:58,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:58,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:58,603 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:25:58,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-16 04:25:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:58,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 04:25:58,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:25:58,885 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 29 treesize of output 21 [2023-12-16 04:25:58,889 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 17 [2023-12-16 04:25:58,896 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 21 treesize of output 13 [2023-12-16 04:25:58,905 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:25:58,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:25:58,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:25:58,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191715375] [2023-12-16 04:25:58,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:25:58,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290823766] [2023-12-16 04:25:58,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290823766] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:25:58,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:25:58,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:25:58,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583059124] [2023-12-16 04:25:58,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:25:58,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:25:58,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:25:58,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:25:58,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:25:58,909 INFO L87 Difference]: Start difference. First operand 207 states and 253 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:59,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:25:59,018 INFO L93 Difference]: Finished difference Result 528 states and 635 transitions. [2023-12-16 04:25:59,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:25:59,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-16 04:25:59,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:25:59,021 INFO L225 Difference]: With dead ends: 528 [2023-12-16 04:25:59,021 INFO L226 Difference]: Without dead ends: 322 [2023-12-16 04:25:59,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:25:59,022 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 85 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:25:59,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 723 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:25:59,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-12-16 04:25:59,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 235. [2023-12-16 04:25:59,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 202 states have (on average 1.1336633663366336) internal successors, (229), 203 states have internal predecessors, (229), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 04:25:59,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 285 transitions. [2023-12-16 04:25:59,036 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 285 transitions. Word has length 153 [2023-12-16 04:25:59,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:25:59,037 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 285 transitions. [2023-12-16 04:25:59,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:25:59,037 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 285 transitions. [2023-12-16 04:25:59,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 04:25:59,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:25:59,038 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:25:59,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-16 04:25:59,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:59,245 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:25:59,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:25:59,246 INFO L85 PathProgramCache]: Analyzing trace with hash 988748987, now seen corresponding path program 1 times [2023-12-16 04:25:59,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:25:59,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942477484] [2023-12-16 04:25:59,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:59,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:25:59,269 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:25:59,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2066203806] [2023-12-16 04:25:59,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:25:59,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:25:59,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:25:59,271 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:25:59,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-16 04:25:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:25:59,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 101 conjunts are in the unsatisfiable core [2023-12-16 04:25:59,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:26:01,987 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 1 [2023-12-16 04:26:02,630 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 1 [2023-12-16 04:26:03,037 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 1 [2023-12-16 04:26:03,459 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 17 treesize of output 9 [2023-12-16 04:26:03,604 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 28 treesize of output 23 [2023-12-16 04:26:04,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2023-12-16 04:26:04,169 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 47 treesize of output 31 [2023-12-16 04:26:04,289 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 2 proven. 338 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 04:26:04,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:26:04,838 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:26:04,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:26:04,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942477484] [2023-12-16 04:26:04,839 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:26:04,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066203806] [2023-12-16 04:26:04,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066203806] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:26:04,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:26:04,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [28] total 38 [2023-12-16 04:26:04,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877250360] [2023-12-16 04:26:04,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:26:04,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 04:26:04,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:26:04,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 04:26:04,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2023-12-16 04:26:04,842 INFO L87 Difference]: Start difference. First operand 235 states and 285 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:26:05,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:26:05,726 INFO L93 Difference]: Finished difference Result 675 states and 806 transitions. [2023-12-16 04:26:05,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 04:26:05,727 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2023-12-16 04:26:05,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:26:05,729 INFO L225 Difference]: With dead ends: 675 [2023-12-16 04:26:05,729 INFO L226 Difference]: Without dead ends: 441 [2023-12-16 04:26:05,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=228, Invalid=2124, Unknown=0, NotChecked=0, Total=2352 [2023-12-16 04:26:05,731 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 260 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 04:26:05,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1417 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 04:26:05,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-12-16 04:26:05,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 392. [2023-12-16 04:26:05,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 334 states have (on average 1.1197604790419162) internal successors, (374), 337 states have internal predecessors, (374), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 46 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-16 04:26:05,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 472 transitions. [2023-12-16 04:26:05,759 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 472 transitions. Word has length 154 [2023-12-16 04:26:05,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:26:05,759 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 472 transitions. [2023-12-16 04:26:05,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:26:05,759 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 472 transitions. [2023-12-16 04:26:05,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 04:26:05,760 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:26:05,761 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:26:05,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-16 04:26:05,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:26:05,970 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:26:05,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:26:05,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1246914425, now seen corresponding path program 1 times [2023-12-16 04:26:05,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:26:05,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135238748] [2023-12-16 04:26:05,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:26:05,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:26:05,993 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:26:05,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [554232293] [2023-12-16 04:26:05,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:26:05,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:26:05,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:26:05,994 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:26:06,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-16 04:26:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:06,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 04:26:06,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:26:06,282 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 17 [2023-12-16 04:26:06,285 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 21 treesize of output 13 [2023-12-16 04:26:06,292 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:26:06,292 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:26:06,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:26:06,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135238748] [2023-12-16 04:26:06,293 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:26:06,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554232293] [2023-12-16 04:26:06,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554232293] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:26:06,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:26:06,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:26:06,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183352202] [2023-12-16 04:26:06,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:26:06,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:26:06,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:26:06,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:26:06,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:26:06,295 INFO L87 Difference]: Start difference. First operand 392 states and 472 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:26:06,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:26:06,445 INFO L93 Difference]: Finished difference Result 826 states and 986 transitions. [2023-12-16 04:26:06,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:26:06,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2023-12-16 04:26:06,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:26:06,447 INFO L225 Difference]: With dead ends: 826 [2023-12-16 04:26:06,447 INFO L226 Difference]: Without dead ends: 435 [2023-12-16 04:26:06,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:26:06,464 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 100 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:26:06,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 673 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:26:06,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2023-12-16 04:26:06,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 388. [2023-12-16 04:26:06,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 326 states have (on average 1.107361963190184) internal successors, (361), 329 states have internal predecessors, (361), 52 states have call successors, (52), 9 states have call predecessors, (52), 9 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-16 04:26:06,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 465 transitions. [2023-12-16 04:26:06,491 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 465 transitions. Word has length 154 [2023-12-16 04:26:06,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:26:06,491 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 465 transitions. [2023-12-16 04:26:06,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:26:06,492 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 465 transitions. [2023-12-16 04:26:06,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 04:26:06,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:26:06,493 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:26:06,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-12-16 04:26:06,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:26:06,700 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:26:06,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:26:06,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1920014915, now seen corresponding path program 1 times [2023-12-16 04:26:06,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:26:06,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622178842] [2023-12-16 04:26:06,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:26:06,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:26:06,741 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:26:06,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2121453940] [2023-12-16 04:26:06,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:26:06,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:26:06,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:26:06,747 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:26:06,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-16 04:26:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:06,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 04:26:06,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:26:07,044 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 23 treesize of output 15 [2023-12-16 04:26:07,046 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 19 treesize of output 11 [2023-12-16 04:26:07,053 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:26:07,053 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:26:07,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:26:07,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622178842] [2023-12-16 04:26:07,053 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:26:07,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121453940] [2023-12-16 04:26:07,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121453940] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:26:07,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:26:07,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:26:07,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083750747] [2023-12-16 04:26:07,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:26:07,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:26:07,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:26:07,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:26:07,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:26:07,055 INFO L87 Difference]: Start difference. First operand 388 states and 465 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:26:07,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:26:07,206 INFO L93 Difference]: Finished difference Result 885 states and 1059 transitions. [2023-12-16 04:26:07,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:26:07,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2023-12-16 04:26:07,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:26:07,211 INFO L225 Difference]: With dead ends: 885 [2023-12-16 04:26:07,211 INFO L226 Difference]: Without dead ends: 498 [2023-12-16 04:26:07,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:26:07,217 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 95 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:26:07,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 507 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:26:07,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-12-16 04:26:07,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 480. [2023-12-16 04:26:07,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 390 states have (on average 1.087179487179487) internal successors, (424), 395 states have internal predecessors, (424), 76 states have call successors, (76), 13 states have call predecessors, (76), 13 states have return successors, (76), 71 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-16 04:26:07,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 576 transitions. [2023-12-16 04:26:07,255 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 576 transitions. Word has length 154 [2023-12-16 04:26:07,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:26:07,255 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 576 transitions. [2023-12-16 04:26:07,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:26:07,256 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 576 transitions. [2023-12-16 04:26:07,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 04:26:07,257 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:26:07,257 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:26:07,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-12-16 04:26:07,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:26:07,465 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:26:07,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:26:07,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1661849477, now seen corresponding path program 1 times [2023-12-16 04:26:07,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:26:07,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048105523] [2023-12-16 04:26:07,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:26:07,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:26:07,487 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:26:07,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [588741818] [2023-12-16 04:26:07,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:26:07,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:26:07,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:26:07,488 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:26:07,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-16 04:26:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:07,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 88 conjunts are in the unsatisfiable core [2023-12-16 04:26:07,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:26:09,252 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 1 [2023-12-16 04:26:09,822 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 1 [2023-12-16 04:26:10,385 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 28 treesize of output 23 [2023-12-16 04:26:10,907 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 31 treesize of output 23 [2023-12-16 04:26:10,947 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 47 treesize of output 31 [2023-12-16 04:26:11,047 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 322 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-12-16 04:26:11,047 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:26:11,641 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:26:11,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:26:11,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048105523] [2023-12-16 04:26:11,641 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:26:11,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588741818] [2023-12-16 04:26:11,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588741818] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:26:11,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:26:11,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [27] total 37 [2023-12-16 04:26:11,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355260954] [2023-12-16 04:26:11,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:26:11,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 04:26:11,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:26:11,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 04:26:11,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1199, Unknown=0, NotChecked=0, Total=1332 [2023-12-16 04:26:11,644 INFO L87 Difference]: Start difference. First operand 480 states and 576 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:26:12,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:26:12,450 INFO L93 Difference]: Finished difference Result 1020 states and 1220 transitions. [2023-12-16 04:26:12,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 04:26:12,451 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2023-12-16 04:26:12,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:26:12,453 INFO L225 Difference]: With dead ends: 1020 [2023-12-16 04:26:12,453 INFO L226 Difference]: Without dead ends: 541 [2023-12-16 04:26:12,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=233, Invalid=1929, Unknown=0, NotChecked=0, Total=2162 [2023-12-16 04:26:12,455 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 119 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 04:26:12,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1548 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 04:26:12,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-12-16 04:26:12,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 506. [2023-12-16 04:26:12,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 400 states have (on average 1.0775) internal successors, (431), 406 states have internal predecessors, (431), 89 states have call successors, (89), 16 states have call predecessors, (89), 16 states have return successors, (89), 83 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-16 04:26:12,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 609 transitions. [2023-12-16 04:26:12,506 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 609 transitions. Word has length 154 [2023-12-16 04:26:12,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:26:12,507 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 609 transitions. [2023-12-16 04:26:12,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:26:12,507 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 609 transitions. [2023-12-16 04:26:12,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 04:26:12,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:26:12,508 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:26:12,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-12-16 04:26:12,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:26:12,717 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:26:12,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:26:12,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1734224111, now seen corresponding path program 1 times [2023-12-16 04:26:12,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:26:12,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524155900] [2023-12-16 04:26:12,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:26:12,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:26:12,748 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:26:12,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1952362606] [2023-12-16 04:26:12,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:26:12,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:26:12,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:26:12,751 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:26:12,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-16 04:26:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:26:13,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-16 04:26:13,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:26:13,045 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 [2023-12-16 04:26:13,077 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 52 treesize of output 40 [2023-12-16 04:26:13,108 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 04:26:13,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:26:13,241 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:26:13,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:26:13,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524155900] [2023-12-16 04:26:13,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:26:13,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952362606] [2023-12-16 04:26:13,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952362606] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:26:13,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:26:13,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 14 [2023-12-16 04:26:13,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875454195] [2023-12-16 04:26:13,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:26:13,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:26:13,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:26:13,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:26:13,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-16 04:26:13,243 INFO L87 Difference]: Start difference. First operand 506 states and 609 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:26:13,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:26:13,582 INFO L93 Difference]: Finished difference Result 1025 states and 1222 transitions. [2023-12-16 04:26:13,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 04:26:13,583 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2023-12-16 04:26:13,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:26:13,583 INFO L225 Difference]: With dead ends: 1025 [2023-12-16 04:26:13,583 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 04:26:13,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2023-12-16 04:26:13,586 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 131 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:26:13,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 934 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:26:13,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 04:26:13,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 04:26:13,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 04:26:13,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 04:26:13,587 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2023-12-16 04:26:13,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:26:13,587 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 04:26:13,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:26:13,588 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 04:26:13,588 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 04:26:13,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:26:13,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-12-16 04:26:13,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:26:13,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 04:26:15,716 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-16 04:26:15,716 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-16 04:26:15,716 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-16 04:26:15,716 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-16 04:26:15,716 INFO L899 garLoopResultBuilder]: For program point L117-20(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,716 INFO L899 garLoopResultBuilder]: For program point L117-22(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,717 INFO L895 garLoopResultBuilder]: At program point L93(line 93) the Hoare annotation is: (let ((.cse1 (mod (select (select |#memory_int#4| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset) 256)) (.cse0 (mod (select (select |#memory_int#7| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) 256))) (or (and (= .cse0 (select (select |#memory_int#15| ~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset)) (= (+ (select (select |#memory_int#13| ~var_1_18_Pointer~0.base) ~var_1_18_Pointer~0.offset) 4) 0) (= (select (select |#memory_int#14| ~var_1_19_Pointer~0.base) ~var_1_19_Pointer~0.offset) .cse1)) (< (* (mod 2 (mod (select (select |#memory_int#10| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset) 256)) (div .cse1 (mod (select (select |#memory_int#9| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) 256))) .cse0))) [2023-12-16 04:26:15,717 INFO L899 garLoopResultBuilder]: For program point L117-24(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,717 INFO L899 garLoopResultBuilder]: For program point L93-1(line 93) no Hoare annotation was computed. [2023-12-16 04:26:15,717 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 68) no Hoare annotation was computed. [2023-12-16 04:26:15,717 INFO L899 garLoopResultBuilder]: For program point L117-26(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,717 INFO L899 garLoopResultBuilder]: For program point L117-27(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,717 INFO L899 garLoopResultBuilder]: For program point L117-29(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,717 INFO L899 garLoopResultBuilder]: For program point L117-30(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,717 INFO L899 garLoopResultBuilder]: For program point L117-32(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,717 INFO L899 garLoopResultBuilder]: For program point L117-33(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,717 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-16 04:26:15,717 INFO L899 garLoopResultBuilder]: For program point L117-35(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,717 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-16 04:26:15,717 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-16 04:26:15,717 INFO L902 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: true [2023-12-16 04:26:15,717 INFO L899 garLoopResultBuilder]: For program point L110-1(line 110) no Hoare annotation was computed. [2023-12-16 04:26:15,717 INFO L902 garLoopResultBuilder]: At program point L102(line 102) the Hoare annotation is: true [2023-12-16 04:26:15,718 INFO L899 garLoopResultBuilder]: For program point L102-1(line 102) no Hoare annotation was computed. [2023-12-16 04:26:15,718 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 65) no Hoare annotation was computed. [2023-12-16 04:26:15,718 INFO L895 garLoopResultBuilder]: At program point L86(line 86) the Hoare annotation is: (let ((.cse1 (mod (select (select |#memory_int#4| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset) 256)) (.cse2 (mod (select (select |#memory_int#7| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) 256))) (let ((.cse0 (= .cse2 (select (select |#memory_int#15| ~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset))) (.cse3 (= (+ (select (select |#memory_int#13| ~var_1_18_Pointer~0.base) ~var_1_18_Pointer~0.offset) 4) 0)) (.cse5 (<= (mod (select (select |#memory_int#5| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset) 256) 0)) (.cse4 (= (select (select |#memory_int#14| ~var_1_19_Pointer~0.base) ~var_1_19_Pointer~0.offset) .cse1))) (or (and .cse0 (= .cse1 .cse2) .cse3 .cse4) (and (<= (+ (* (mod 2 (mod (select (select |#memory_int#10| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset) 256)) (div .cse1 (mod (select (select |#memory_int#9| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) 256))) 1) .cse2) .cse5) (and .cse0 .cse3 .cse5 .cse4)))) [2023-12-16 04:26:15,718 INFO L899 garLoopResultBuilder]: For program point L86-1(line 86) no Hoare annotation was computed. [2023-12-16 04:26:15,718 INFO L902 garLoopResultBuilder]: At program point L103(line 103) the Hoare annotation is: true [2023-12-16 04:26:15,718 INFO L899 garLoopResultBuilder]: For program point L103-1(line 103) no Hoare annotation was computed. [2023-12-16 04:26:15,718 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 72) no Hoare annotation was computed. [2023-12-16 04:26:15,718 INFO L899 garLoopResultBuilder]: For program point L70-2(lines 70 72) no Hoare annotation was computed. [2023-12-16 04:26:15,718 INFO L902 garLoopResultBuilder]: At program point L95(line 95) the Hoare annotation is: true [2023-12-16 04:26:15,718 INFO L899 garLoopResultBuilder]: For program point L95-1(line 95) no Hoare annotation was computed. [2023-12-16 04:26:15,718 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (let ((.cse1 (mod (select (select |#memory_int#4| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset) 256)) (.cse2 (mod (select (select |#memory_int#7| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) 256))) (let ((.cse0 (= .cse2 (select (select |#memory_int#15| ~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset))) (.cse3 (= (+ (select (select |#memory_int#13| ~var_1_18_Pointer~0.base) ~var_1_18_Pointer~0.offset) 4) 0)) (.cse5 (<= (mod (select (select |#memory_int#5| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset) 256) 0)) (.cse4 (= (select (select |#memory_int#14| ~var_1_19_Pointer~0.base) ~var_1_19_Pointer~0.offset) .cse1))) (or (and .cse0 (= .cse1 .cse2) .cse3 .cse4) (and (<= (+ (* (mod 2 (mod (select (select |#memory_int#10| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset) 256)) (div .cse1 (mod (select (select |#memory_int#9| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) 256))) 1) .cse2) .cse5) (and .cse0 .cse3 .cse5 .cse4)))) [2023-12-16 04:26:15,718 INFO L899 garLoopResultBuilder]: For program point L87-1(line 87) no Hoare annotation was computed. [2023-12-16 04:26:15,719 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-16 04:26:15,719 INFO L902 garLoopResultBuilder]: At program point L104(line 104) the Hoare annotation is: true [2023-12-16 04:26:15,719 INFO L899 garLoopResultBuilder]: For program point L104-1(line 104) no Hoare annotation was computed. [2023-12-16 04:26:15,719 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2023-12-16 04:26:15,719 INFO L899 garLoopResultBuilder]: For program point L71-2(line 71) no Hoare annotation was computed. [2023-12-16 04:26:15,719 INFO L902 garLoopResultBuilder]: At program point L96(line 96) the Hoare annotation is: true [2023-12-16 04:26:15,719 INFO L899 garLoopResultBuilder]: For program point L96-1(line 96) no Hoare annotation was computed. [2023-12-16 04:26:15,719 INFO L895 garLoopResultBuilder]: At program point L89(line 89) the Hoare annotation is: (let ((.cse1 (mod (select (select |#memory_int#4| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset) 256)) (.cse0 (mod (select (select |#memory_int#7| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) 256))) (or (and (= .cse0 (select (select |#memory_int#15| ~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset)) (= (+ (select (select |#memory_int#13| ~var_1_18_Pointer~0.base) ~var_1_18_Pointer~0.offset) 4) 0) (= (select (select |#memory_int#14| ~var_1_19_Pointer~0.base) ~var_1_19_Pointer~0.offset) .cse1)) (< (* (mod 2 (mod (select (select |#memory_int#10| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset) 256)) (div .cse1 (mod (select (select |#memory_int#9| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) 256))) .cse0))) [2023-12-16 04:26:15,719 INFO L899 garLoopResultBuilder]: For program point L89-1(line 89) no Hoare annotation was computed. [2023-12-16 04:26:15,719 INFO L902 garLoopResultBuilder]: At program point L106(line 106) the Hoare annotation is: true [2023-12-16 04:26:15,719 INFO L899 garLoopResultBuilder]: For program point L106-1(line 106) no Hoare annotation was computed. [2023-12-16 04:26:15,719 INFO L902 garLoopResultBuilder]: At program point L98(line 98) the Hoare annotation is: true [2023-12-16 04:26:15,719 INFO L899 garLoopResultBuilder]: For program point L98-1(line 98) no Hoare annotation was computed. [2023-12-16 04:26:15,719 INFO L895 garLoopResultBuilder]: At program point L90(line 90) the Hoare annotation is: (let ((.cse1 (mod (select (select |#memory_int#4| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset) 256)) (.cse0 (mod (select (select |#memory_int#7| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) 256))) (or (and (= .cse0 (select (select |#memory_int#15| ~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset)) (= (+ (select (select |#memory_int#13| ~var_1_18_Pointer~0.base) ~var_1_18_Pointer~0.offset) 4) 0) (= (select (select |#memory_int#14| ~var_1_19_Pointer~0.base) ~var_1_19_Pointer~0.offset) .cse1)) (< (* (mod 2 (mod (select (select |#memory_int#10| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset) 256)) (div .cse1 (mod (select (select |#memory_int#9| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) 256))) .cse0))) [2023-12-16 04:26:15,719 INFO L899 garLoopResultBuilder]: For program point L90-1(line 90) no Hoare annotation was computed. [2023-12-16 04:26:15,720 INFO L895 garLoopResultBuilder]: At program point L123-2(lines 123 129) the Hoare annotation is: (let ((.cse1 (mod (select (select |#memory_int#4| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset) 256)) (.cse2 (mod (select (select |#memory_int#7| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) 256))) (let ((.cse0 (= .cse2 (select (select |#memory_int#15| ~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset))) (.cse3 (= (+ (select (select |#memory_int#13| ~var_1_18_Pointer~0.base) ~var_1_18_Pointer~0.offset) 4) 0)) (.cse5 (<= (mod (select (select |#memory_int#5| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset) 256) 0)) (.cse4 (= (select (select |#memory_int#14| ~var_1_19_Pointer~0.base) ~var_1_19_Pointer~0.offset) .cse1))) (or (and .cse0 (= .cse1 .cse2) .cse3 .cse4) (and (<= (+ (* (mod 2 (mod (select (select |#memory_int#10| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset) 256)) (div .cse1 (mod (select (select |#memory_int#9| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) 256))) 1) .cse2) .cse5) (and .cse0 .cse3 .cse5 .cse4)))) [2023-12-16 04:26:15,720 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-16 04:26:15,720 INFO L899 garLoopResultBuilder]: For program point L123-3(lines 123 129) no Hoare annotation was computed. [2023-12-16 04:26:15,720 INFO L902 garLoopResultBuilder]: At program point L107(line 107) the Hoare annotation is: true [2023-12-16 04:26:15,720 INFO L899 garLoopResultBuilder]: For program point L107-1(line 107) no Hoare annotation was computed. [2023-12-16 04:26:15,720 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 76) no Hoare annotation was computed. [2023-12-16 04:26:15,720 INFO L899 garLoopResultBuilder]: For program point L74-2(lines 74 76) no Hoare annotation was computed. [2023-12-16 04:26:15,720 INFO L902 garLoopResultBuilder]: At program point L99(line 99) the Hoare annotation is: true [2023-12-16 04:26:15,720 INFO L899 garLoopResultBuilder]: For program point L99-1(line 99) no Hoare annotation was computed. [2023-12-16 04:26:15,720 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-16 04:26:15,720 INFO L895 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: (let ((.cse1 (mod (select (select |#memory_int#4| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset) 256)) (.cse2 (mod (select (select |#memory_int#7| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) 256))) (let ((.cse0 (= .cse2 (select (select |#memory_int#15| ~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset))) (.cse3 (= (+ (select (select |#memory_int#13| ~var_1_18_Pointer~0.base) ~var_1_18_Pointer~0.offset) 4) 0)) (.cse5 (<= (mod (select (select |#memory_int#5| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset) 256) 0)) (.cse4 (= (select (select |#memory_int#14| ~var_1_19_Pointer~0.base) ~var_1_19_Pointer~0.offset) .cse1))) (or (and .cse0 (= .cse1 .cse2) .cse3 .cse4) (and (<= (+ (* (mod 2 (mod (select (select |#memory_int#10| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset) 256)) (div .cse1 (mod (select (select |#memory_int#9| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) 256))) 1) .cse2) .cse5) (and .cse0 .cse3 .cse5 .cse4)))) [2023-12-16 04:26:15,720 INFO L899 garLoopResultBuilder]: For program point L83-1(line 83) no Hoare annotation was computed. [2023-12-16 04:26:15,720 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-12-16 04:26:15,720 INFO L899 garLoopResultBuilder]: For program point L75-2(line 75) no Hoare annotation was computed. [2023-12-16 04:26:15,721 INFO L902 garLoopResultBuilder]: At program point L100(line 100) the Hoare annotation is: true [2023-12-16 04:26:15,721 INFO L899 garLoopResultBuilder]: For program point L100-1(line 100) no Hoare annotation was computed. [2023-12-16 04:26:15,721 INFO L895 garLoopResultBuilder]: At program point L92(line 92) the Hoare annotation is: (let ((.cse1 (mod (select (select |#memory_int#4| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset) 256)) (.cse0 (mod (select (select |#memory_int#7| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) 256))) (or (and (= .cse0 (select (select |#memory_int#15| ~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset)) (= (+ (select (select |#memory_int#13| ~var_1_18_Pointer~0.base) ~var_1_18_Pointer~0.offset) 4) 0) (= (select (select |#memory_int#14| ~var_1_19_Pointer~0.base) ~var_1_19_Pointer~0.offset) .cse1)) (< (* (mod 2 (mod (select (select |#memory_int#10| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset) 256)) (div .cse1 (mod (select (select |#memory_int#9| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) 256))) .cse0))) [2023-12-16 04:26:15,721 INFO L899 garLoopResultBuilder]: For program point L92-1(line 92) no Hoare annotation was computed. [2023-12-16 04:26:15,721 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 69) no Hoare annotation was computed. [2023-12-16 04:26:15,721 INFO L899 garLoopResultBuilder]: For program point L59-1(lines 59 69) no Hoare annotation was computed. [2023-12-16 04:26:15,721 INFO L899 garLoopResultBuilder]: For program point L117(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,721 INFO L895 garLoopResultBuilder]: At program point L84(line 84) the Hoare annotation is: (let ((.cse1 (mod (select (select |#memory_int#4| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset) 256)) (.cse2 (mod (select (select |#memory_int#7| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) 256))) (let ((.cse0 (= .cse2 (select (select |#memory_int#15| ~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset))) (.cse3 (= (+ (select (select |#memory_int#13| ~var_1_18_Pointer~0.base) ~var_1_18_Pointer~0.offset) 4) 0)) (.cse5 (<= (mod (select (select |#memory_int#5| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset) 256) 0)) (.cse4 (= (select (select |#memory_int#14| ~var_1_19_Pointer~0.base) ~var_1_19_Pointer~0.offset) .cse1))) (or (and .cse0 (= .cse1 .cse2) .cse3 .cse4) (and (<= (+ (* (mod 2 (mod (select (select |#memory_int#10| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset) 256)) (div .cse1 (mod (select (select |#memory_int#9| ~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) 256))) 1) .cse2) .cse5) (and .cse0 .cse3 .cse5 .cse4)))) [2023-12-16 04:26:15,721 INFO L899 garLoopResultBuilder]: For program point L117-1(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,721 INFO L899 garLoopResultBuilder]: For program point L84-1(line 84) no Hoare annotation was computed. [2023-12-16 04:26:15,722 INFO L899 garLoopResultBuilder]: For program point L117-3(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,722 INFO L899 garLoopResultBuilder]: For program point L117-5(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,722 INFO L899 garLoopResultBuilder]: For program point L117-6(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,722 INFO L899 garLoopResultBuilder]: For program point L117-7(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,722 INFO L902 garLoopResultBuilder]: At program point L109(line 109) the Hoare annotation is: true [2023-12-16 04:26:15,722 INFO L899 garLoopResultBuilder]: For program point L117-8(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,722 INFO L899 garLoopResultBuilder]: For program point L109-1(line 109) no Hoare annotation was computed. [2023-12-16 04:26:15,722 INFO L899 garLoopResultBuilder]: For program point L117-9(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,722 INFO L899 garLoopResultBuilder]: For program point L117-11(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,722 INFO L899 garLoopResultBuilder]: For program point L117-13(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,722 INFO L899 garLoopResultBuilder]: For program point L117-15(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,722 INFO L899 garLoopResultBuilder]: For program point L117-17(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,722 INFO L899 garLoopResultBuilder]: For program point L117-18(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,722 INFO L899 garLoopResultBuilder]: For program point L117-19(line 117) no Hoare annotation was computed. [2023-12-16 04:26:15,725 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:26:15,727 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:26:15,739 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,743 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#15[~var_1_20_Pointer~0!base][~var_1_20_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,743 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,743 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,744 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_18_Pointer~0!base][~var_1_18_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,744 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#14[~var_1_19_Pointer~0!base][~var_1_19_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,744 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,744 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,744 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,744 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,744 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,749 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,749 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,749 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#15[~var_1_20_Pointer~0!base][~var_1_20_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,749 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_18_Pointer~0!base][~var_1_18_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,749 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,749 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#14[~var_1_19_Pointer~0!base][~var_1_19_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,749 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-16 04:26:15,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:26:15 BoogieIcfgContainer [2023-12-16 04:26:15,750 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:26:15,751 INFO L158 Benchmark]: Toolchain (without parser) took 30604.90ms. Allocated memory was 207.6MB in the beginning and 468.7MB in the end (delta: 261.1MB). Free memory was 160.8MB in the beginning and 283.8MB in the end (delta: -123.0MB). Peak memory consumption was 265.9MB. Max. memory is 8.0GB. [2023-12-16 04:26:15,751 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 207.6MB. Free memory is still 163.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:26:15,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.50ms. Allocated memory is still 207.6MB. Free memory was 160.5MB in the beginning and 146.0MB in the end (delta: 14.5MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 04:26:15,751 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.57ms. Allocated memory is still 207.6MB. Free memory was 146.0MB in the beginning and 141.6MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 04:26:15,751 INFO L158 Benchmark]: Boogie Preprocessor took 106.85ms. Allocated memory is still 207.6MB. Free memory was 141.6MB in the beginning and 136.7MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 04:26:15,751 INFO L158 Benchmark]: RCFGBuilder took 752.99ms. Allocated memory is still 207.6MB. Free memory was 136.7MB in the beginning and 152.4MB in the end (delta: -15.6MB). Peak memory consumption was 19.1MB. Max. memory is 8.0GB. [2023-12-16 04:26:15,752 INFO L158 Benchmark]: TraceAbstraction took 29381.57ms. Allocated memory was 207.6MB in the beginning and 468.7MB in the end (delta: 261.1MB). Free memory was 151.8MB in the beginning and 283.8MB in the end (delta: -132.0MB). Peak memory consumption was 255.2MB. Max. memory is 8.0GB. [2023-12-16 04:26:15,752 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 207.6MB. Free memory is still 163.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 295.50ms. Allocated memory is still 207.6MB. Free memory was 160.5MB in the beginning and 146.0MB in the end (delta: 14.5MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.57ms. Allocated memory is still 207.6MB. Free memory was 146.0MB in the beginning and 141.6MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 106.85ms. Allocated memory is still 207.6MB. Free memory was 141.6MB in the beginning and 136.7MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 752.99ms. Allocated memory is still 207.6MB. Free memory was 136.7MB in the beginning and 152.4MB in the end (delta: -15.6MB). Peak memory consumption was 19.1MB. Max. memory is 8.0GB. * TraceAbstraction took 29381.57ms. Allocated memory was 207.6MB in the beginning and 468.7MB in the end (delta: 261.1MB). Free memory was 151.8MB in the beginning and 283.8MB in the end (delta: -132.0MB). Peak memory consumption was 255.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#15[~var_1_20_Pointer~0!base][~var_1_20_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_18_Pointer~0!base][~var_1_18_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#14[~var_1_19_Pointer~0!base][~var_1_19_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_14_Pointer~0!base][~var_1_14_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#15[~var_1_20_Pointer~0!base][~var_1_20_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_18_Pointer~0!base][~var_1_18_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#14[~var_1_19_Pointer~0!base][~var_1_19_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.3s, OverallIterations: 24, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1859 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1859 mSDsluCounter, 13859 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10435 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2490 IncrementalHoareTripleChecker+Invalid, 2583 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 3424 mSDtfsCounter, 2490 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4362 GetRequests, 4138 SyntacticMatches, 0 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1251 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=506occurred in iteration=23, InterpolantAutomatonStates: 171, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 24 MinimizatonAttempts, 665 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 787 PreInvPairs, 883 NumberOfFragments, 1003 HoareAnnotationTreeSize, 787 FormulaSimplifications, 5252 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 22 FormulaSimplificationsInter, 12701 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 10.8s InterpolantComputationTime, 3700 NumberOfCodeBlocks, 3700 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 4288 ConstructedInterpolants, 0 QuantifiedInterpolants, 19971 SizeOfPredicates, 239 NumberOfNonLiveVariables, 14726 ConjunctsInSsa, 410 ConjunctsInUnsatCore, 29 InterpolantComputations, 24 PerfectInterpolantSequences, 21245/22040 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-12-16 04:26:15,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...