/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 true -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 [2023-12-15 21:37:26,090 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 21:37:26,157 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 21:37:26,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 21:37:26,161 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 21:37:26,182 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 21:37:26,183 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 21:37:26,183 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 21:37:26,183 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 21:37:26,186 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 21:37:26,186 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 21:37:26,187 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 21:37:26,187 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 21:37:26,188 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 21:37:26,188 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 21:37:26,189 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 21:37:26,189 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 21:37:26,189 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 21:37:26,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 21:37:26,190 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 21:37:26,190 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 21:37:26,190 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 21:37:26,191 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 21:37:26,191 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 21:37:26,191 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 21:37:26,191 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 21:37:26,191 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 21:37:26,191 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 21:37:26,192 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 21:37:26,192 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 21:37:26,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 21:37:26,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 21:37:26,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:37:26,193 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 21:37:26,193 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 21:37:26,193 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 21:37:26,194 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 21:37:26,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 21:37:26,194 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 21:37:26,194 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 21:37:26,194 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 21:37:26,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 21:37:26,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 21:37:26,195 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 21:37:26,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 21:37:26,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 21:37:26,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 21:37:26,354 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 21:37:26,354 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 21:37:26,355 INFO L431 ainManager$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 [2023-12-15 21:37:27,423 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 21:37:27,640 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 21:37:27,641 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.i [2023-12-15 21:37:27,647 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc6002d60/aa92a26c09214148abd4d8ddb9aa383f/FLAG1dd613dba [2023-12-15 21:37:28,023 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc6002d60/aa92a26c09214148abd4d8ddb9aa383f [2023-12-15 21:37:28,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 21:37:28,026 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 21:37:28,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 21:37:28,027 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 21:37:28,030 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 21:37:28,030 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:37:28" (1/1) ... [2023-12-15 21:37:28,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27de9a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:28, skipping insertion in model container [2023-12-15 21:37:28,031 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:37:28" (1/1) ... [2023-12-15 21:37:28,060 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 21:37:28,169 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-5.i[915,928] [2023-12-15 21:37:28,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:37:28,215 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 21:37:28,223 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] [2023-12-15 21:37:28,244 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:37:28,256 INFO L206 MainTranslator]: Completed translation [2023-12-15 21:37:28,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:28 WrapperNode [2023-12-15 21:37:28,256 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 21:37:28,257 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 21:37:28,257 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 21:37:28,257 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 21:37:28,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:28" (1/1) ... [2023-12-15 21:37:28,269 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:28" (1/1) ... [2023-12-15 21:37:28,300 INFO L138 Inliner]: procedures = 26, calls = 168, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 453 [2023-12-15 21:37:28,300 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 21:37:28,301 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 21:37:28,301 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 21:37:28,301 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 21:37:28,308 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:28" (1/1) ... [2023-12-15 21:37:28,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:28" (1/1) ... [2023-12-15 21:37:28,313 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:28" (1/1) ... [2023-12-15 21:37:28,351 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]. [2023-12-15 21:37:28,352 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:28" (1/1) ... [2023-12-15 21:37:28,352 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:28" (1/1) ... [2023-12-15 21:37:28,361 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:28" (1/1) ... [2023-12-15 21:37:28,363 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:28" (1/1) ... [2023-12-15 21:37:28,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:28" (1/1) ... [2023-12-15 21:37:28,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:28" (1/1) ... [2023-12-15 21:37:28,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 21:37:28,372 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 21:37:28,372 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 21:37:28,372 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 21:37:28,372 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:28" (1/1) ... [2023-12-15 21:37:28,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:37:28,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:28,430 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) [2023-12-15 21:37:28,461 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 [2023-12-15 21:37:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 21:37:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-15 21:37:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-15 21:37:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-15 21:37:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-15 21:37:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-15 21:37:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-15 21:37:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-15 21:37:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-15 21:37:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-15 21:37:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-15 21:37:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-15 21:37:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-15 21:37:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-15 21:37:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-15 21:37:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-12-15 21:37:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-12-15 21:37:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-15 21:37:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-15 21:37:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-15 21:37:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-15 21:37:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-15 21:37:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-15 21:37:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-15 21:37:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-15 21:37:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-15 21:37:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-15 21:37:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-15 21:37:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-15 21:37:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-15 21:37:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-15 21:37:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-12-15 21:37:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-12-15 21:37:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 21:37:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 21:37:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 21:37:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 21:37:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 21:37:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 21:37:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-15 21:37:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-15 21:37:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-15 21:37:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-15 21:37:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-15 21:37:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-15 21:37:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-15 21:37:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-15 21:37:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-15 21:37:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-15 21:37:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-15 21:37:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-15 21:37:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 21:37:28,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 21:37:28,617 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 21:37:28,619 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 21:37:29,057 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 21:37:29,087 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 21:37:29,088 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 21:37:29,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:37:29 BoogieIcfgContainer [2023-12-15 21:37:29,088 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 21:37:29,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 21:37:29,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 21:37:29,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 21:37:29,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:37:28" (1/3) ... [2023-12-15 21:37:29,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322f29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:37:29, skipping insertion in model container [2023-12-15 21:37:29,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:28" (2/3) ... [2023-12-15 21:37:29,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322f29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:37:29, skipping insertion in model container [2023-12-15 21:37:29,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:37:29" (3/3) ... [2023-12-15 21:37:29,094 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-5.i [2023-12-15 21:37:29,106 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 21:37:29,106 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 21:37:29,147 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 21:37:29,153 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;@1dacb704, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 21:37:29,153 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 21:37:29,156 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) [2023-12-15 21:37:29,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 21:37:29,168 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:29,169 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] [2023-12-15 21:37:29,169 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:29,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:29,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1626294328, now seen corresponding path program 1 times [2023-12-15 21:37:29,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:29,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762406134] [2023-12-15 21:37:29,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:29,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:29,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:29,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762406134] [2023-12-15 21:37:29,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 21:37:29,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80581365] [2023-12-15 21:37:29,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:29,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:29,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:29,444 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) [2023-12-15 21:37:29,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 21:37:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:29,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 21:37:29,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:29,659 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-12-15 21:37:29,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:29,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80581365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:29,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:29,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:37:29,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776289177] [2023-12-15 21:37:29,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:29,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 21:37:29,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:29,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 21:37:29,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:37:29,682 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) [2023-12-15 21:37:29,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:29,710 INFO L93 Difference]: Finished difference Result 173 states and 276 transitions. [2023-12-15 21:37:29,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 21:37:29,712 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 [2023-12-15 21:37:29,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:29,717 INFO L225 Difference]: With dead ends: 173 [2023-12-15 21:37:29,717 INFO L226 Difference]: Without dead ends: 86 [2023-12-15 21:37:29,719 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 [2023-12-15 21:37:29,721 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 [2023-12-15 21:37:29,722 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] [2023-12-15 21:37:29,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-15 21:37:29,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-12-15 21:37:29,747 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) [2023-12-15 21:37:29,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 124 transitions. [2023-12-15 21:37:29,749 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 124 transitions. Word has length 142 [2023-12-15 21:37:29,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:29,749 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 124 transitions. [2023-12-15 21:37:29,749 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) [2023-12-15 21:37:29,749 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 124 transitions. [2023-12-15 21:37:29,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 21:37:29,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:29,752 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] [2023-12-15 21:37:29,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:29,960 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 [2023-12-15 21:37:29,960 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:29,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:29,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1696479216, now seen corresponding path program 1 times [2023-12-15 21:37:29,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:29,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898138862] [2023-12-15 21:37:29,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:29,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:30,030 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:30,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1131994354] [2023-12-15 21:37:30,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:30,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:30,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:30,032 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) [2023-12-15 21:37:30,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 21:37:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:30,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:37:30,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:30,262 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:30,262 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:30,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:30,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898138862] [2023-12-15 21:37:30,262 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:30,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131994354] [2023-12-15 21:37:30,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131994354] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:30,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:30,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:37:30,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189441137] [2023-12-15 21:37:30,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:30,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:37:30,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:30,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:37:30,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:37:30,264 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) [2023-12-15 21:37:30,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:30,300 INFO L93 Difference]: Finished difference Result 183 states and 264 transitions. [2023-12-15 21:37:30,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:37:30,300 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 [2023-12-15 21:37:30,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:30,301 INFO L225 Difference]: With dead ends: 183 [2023-12-15 21:37:30,302 INFO L226 Difference]: Without dead ends: 98 [2023-12-15 21:37:30,302 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 [2023-12-15 21:37:30,303 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 [2023-12-15 21:37:30,303 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] [2023-12-15 21:37:30,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-12-15 21:37:30,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 88. [2023-12-15 21:37:30,310 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) [2023-12-15 21:37:30,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 126 transitions. [2023-12-15 21:37:30,311 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 126 transitions. Word has length 142 [2023-12-15 21:37:30,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:30,312 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 126 transitions. [2023-12-15 21:37:30,312 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) [2023-12-15 21:37:30,312 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 126 transitions. [2023-12-15 21:37:30,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 21:37:30,313 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:30,313 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] [2023-12-15 21:37:30,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:30,519 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 [2023-12-15 21:37:30,519 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:30,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:30,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1789141454, now seen corresponding path program 1 times [2023-12-15 21:37:30,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:30,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596266532] [2023-12-15 21:37:30,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:30,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:30,578 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:30,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1173663480] [2023-12-15 21:37:30,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:30,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:30,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:30,590 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) [2023-12-15 21:37:30,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 21:37:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:30,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:37:30,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:30,786 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:30,786 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:30,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:30,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596266532] [2023-12-15 21:37:30,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:30,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173663480] [2023-12-15 21:37:30,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173663480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:30,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:30,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:37:30,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25498278] [2023-12-15 21:37:30,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:30,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:37:30,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:30,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:37:30,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:37:30,788 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) [2023-12-15 21:37:30,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:30,820 INFO L93 Difference]: Finished difference Result 183 states and 262 transitions. [2023-12-15 21:37:30,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:37:30,820 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 [2023-12-15 21:37:30,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:30,821 INFO L225 Difference]: With dead ends: 183 [2023-12-15 21:37:30,821 INFO L226 Difference]: Without dead ends: 96 [2023-12-15 21:37:30,822 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 [2023-12-15 21:37:30,823 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 [2023-12-15 21:37:30,823 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] [2023-12-15 21:37:30,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-15 21:37:30,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 90. [2023-12-15 21:37:30,829 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) [2023-12-15 21:37:30,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 128 transitions. [2023-12-15 21:37:30,830 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 128 transitions. Word has length 142 [2023-12-15 21:37:30,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:30,831 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 128 transitions. [2023-12-15 21:37:30,831 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) [2023-12-15 21:37:30,831 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 128 transitions. [2023-12-15 21:37:30,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 21:37:30,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:30,832 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] [2023-12-15 21:37:30,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:31,038 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 [2023-12-15 21:37:31,039 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:31,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:31,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1846399756, now seen corresponding path program 1 times [2023-12-15 21:37:31,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:31,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288381767] [2023-12-15 21:37:31,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:31,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:31,064 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:31,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [238596848] [2023-12-15 21:37:31,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:31,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:31,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:31,082 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) [2023-12-15 21:37:31,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 21:37:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:31,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:37:31,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:31,265 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:31,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:31,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:31,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288381767] [2023-12-15 21:37:31,266 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:31,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238596848] [2023-12-15 21:37:31,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238596848] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:31,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:31,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:37:31,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259235037] [2023-12-15 21:37:31,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:31,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:37:31,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:31,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:37:31,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:37:31,267 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) [2023-12-15 21:37:31,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:31,293 INFO L93 Difference]: Finished difference Result 183 states and 260 transitions. [2023-12-15 21:37:31,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:37:31,293 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 [2023-12-15 21:37:31,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:31,294 INFO L225 Difference]: With dead ends: 183 [2023-12-15 21:37:31,294 INFO L226 Difference]: Without dead ends: 94 [2023-12-15 21:37:31,295 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 [2023-12-15 21:37:31,295 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 [2023-12-15 21:37:31,296 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] [2023-12-15 21:37:31,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-15 21:37:31,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2023-12-15 21:37:31,300 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) [2023-12-15 21:37:31,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 130 transitions. [2023-12-15 21:37:31,301 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 130 transitions. Word has length 142 [2023-12-15 21:37:31,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:31,301 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 130 transitions. [2023-12-15 21:37:31,302 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) [2023-12-15 21:37:31,302 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 130 transitions. [2023-12-15 21:37:31,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 21:37:31,303 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:31,303 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] [2023-12-15 21:37:31,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:31,508 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 [2023-12-15 21:37:31,508 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:31,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:31,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1846459338, now seen corresponding path program 1 times [2023-12-15 21:37:31,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:31,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470744139] [2023-12-15 21:37:31,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:31,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:31,537 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:31,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [342570479] [2023-12-15 21:37:31,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:31,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:31,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:31,539 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) [2023-12-15 21:37:31,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 21:37:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:31,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:37:31,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:31,751 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:31,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:31,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:31,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470744139] [2023-12-15 21:37:31,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:31,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342570479] [2023-12-15 21:37:31,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342570479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:31,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:31,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:37:31,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821990652] [2023-12-15 21:37:31,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:31,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:37:31,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:31,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:37:31,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:37:31,753 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) [2023-12-15 21:37:31,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:31,782 INFO L93 Difference]: Finished difference Result 210 states and 296 transitions. [2023-12-15 21:37:31,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:37:31,782 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 [2023-12-15 21:37:31,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:31,783 INFO L225 Difference]: With dead ends: 210 [2023-12-15 21:37:31,783 INFO L226 Difference]: Without dead ends: 119 [2023-12-15 21:37:31,784 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 [2023-12-15 21:37:31,784 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 [2023-12-15 21:37:31,784 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] [2023-12-15 21:37:31,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-12-15 21:37:31,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 94. [2023-12-15 21:37:31,789 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) [2023-12-15 21:37:31,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2023-12-15 21:37:31,790 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 142 [2023-12-15 21:37:31,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:31,790 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2023-12-15 21:37:31,791 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) [2023-12-15 21:37:31,791 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2023-12-15 21:37:31,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-15 21:37:31,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:31,792 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] [2023-12-15 21:37:31,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:31,998 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 [2023-12-15 21:37:31,998 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:31,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:31,998 INFO L85 PathProgramCache]: Analyzing trace with hash -331266065, now seen corresponding path program 1 times [2023-12-15 21:37:31,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:31,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395394505] [2023-12-15 21:37:31,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:31,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:32,026 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:32,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [687368047] [2023-12-15 21:37:32,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:32,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:32,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:32,045 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) [2023-12-15 21:37:32,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 21:37:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:32,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-15 21:37:32,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:32,303 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 [2023-12-15 21:37:32,308 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:32,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:32,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:32,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395394505] [2023-12-15 21:37:32,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:32,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687368047] [2023-12-15 21:37:32,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687368047] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:32,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:32,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:37:32,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369277855] [2023-12-15 21:37:32,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:32,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 21:37:32,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:32,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 21:37:32,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:37:32,310 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) [2023-12-15 21:37:32,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:32,324 INFO L93 Difference]: Finished difference Result 212 states and 297 transitions. [2023-12-15 21:37:32,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 21:37:32,325 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 [2023-12-15 21:37:32,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:32,326 INFO L225 Difference]: With dead ends: 212 [2023-12-15 21:37:32,326 INFO L226 Difference]: Without dead ends: 119 [2023-12-15 21:37:32,326 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 [2023-12-15 21:37:32,327 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 [2023-12-15 21:37:32,327 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] [2023-12-15 21:37:32,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-12-15 21:37:32,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 94. [2023-12-15 21:37:32,331 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) [2023-12-15 21:37:32,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 131 transitions. [2023-12-15 21:37:32,332 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 131 transitions. Word has length 144 [2023-12-15 21:37:32,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:32,332 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 131 transitions. [2023-12-15 21:37:32,332 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) [2023-12-15 21:37:32,332 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 131 transitions. [2023-12-15 21:37:32,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-15 21:37:32,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:32,333 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] [2023-12-15 21:37:32,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:32,539 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 [2023-12-15 21:37:32,539 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:32,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:32,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1611129743, now seen corresponding path program 1 times [2023-12-15 21:37:32,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:32,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679260808] [2023-12-15 21:37:32,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:32,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:32,565 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:32,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [605222761] [2023-12-15 21:37:32,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:32,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:32,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:32,571 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) [2023-12-15 21:37:32,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-15 21:37:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:32,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 21:37:32,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:32,790 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 [2023-12-15 21:37:32,798 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:32,798 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:32,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:32,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679260808] [2023-12-15 21:37:32,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:32,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605222761] [2023-12-15 21:37:32,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605222761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:32,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:32,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:37:32,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761284352] [2023-12-15 21:37:32,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:32,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 21:37:32,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:32,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 21:37:32,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:37:32,800 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) [2023-12-15 21:37:32,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:32,815 INFO L93 Difference]: Finished difference Result 187 states and 261 transitions. [2023-12-15 21:37:32,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 21:37:32,816 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 [2023-12-15 21:37:32,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:32,817 INFO L225 Difference]: With dead ends: 187 [2023-12-15 21:37:32,817 INFO L226 Difference]: Without dead ends: 94 [2023-12-15 21:37:32,817 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 [2023-12-15 21:37:32,818 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 [2023-12-15 21:37:32,818 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] [2023-12-15 21:37:32,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-15 21:37:32,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-12-15 21:37:32,822 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) [2023-12-15 21:37:32,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 130 transitions. [2023-12-15 21:37:32,822 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 130 transitions. Word has length 144 [2023-12-15 21:37:32,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:32,823 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 130 transitions. [2023-12-15 21:37:32,823 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) [2023-12-15 21:37:32,823 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 130 transitions. [2023-12-15 21:37:32,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-15 21:37:32,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:32,824 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] [2023-12-15 21:37:32,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-15 21:37:33,029 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 [2023-12-15 21:37:33,029 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:33,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:33,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1662697046, now seen corresponding path program 1 times [2023-12-15 21:37:33,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:33,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272871785] [2023-12-15 21:37:33,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:33,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:33,056 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:33,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [791064067] [2023-12-15 21:37:33,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:33,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:33,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:33,057 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) [2023-12-15 21:37:33,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-15 21:37:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:33,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-15 21:37:33,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:33,266 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 [2023-12-15 21:37:33,270 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:33,270 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:33,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:33,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272871785] [2023-12-15 21:37:33,270 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:33,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791064067] [2023-12-15 21:37:33,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791064067] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:33,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:33,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:37:33,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384784551] [2023-12-15 21:37:33,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:33,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 21:37:33,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:33,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 21:37:33,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:37:33,271 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) [2023-12-15 21:37:33,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:33,287 INFO L93 Difference]: Finished difference Result 187 states and 259 transitions. [2023-12-15 21:37:33,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 21:37:33,288 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 [2023-12-15 21:37:33,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:33,288 INFO L225 Difference]: With dead ends: 187 [2023-12-15 21:37:33,289 INFO L226 Difference]: Without dead ends: 94 [2023-12-15 21:37:33,289 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 [2023-12-15 21:37:33,289 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 [2023-12-15 21:37:33,289 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] [2023-12-15 21:37:33,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-15 21:37:33,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-12-15 21:37:33,293 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) [2023-12-15 21:37:33,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 129 transitions. [2023-12-15 21:37:33,293 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 129 transitions. Word has length 146 [2023-12-15 21:37:33,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:33,294 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 129 transitions. [2023-12-15 21:37:33,294 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) [2023-12-15 21:37:33,294 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 129 transitions. [2023-12-15 21:37:33,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-15 21:37:33,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:33,295 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, 1, 1] [2023-12-15 21:37:33,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:33,501 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 [2023-12-15 21:37:33,501 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:33,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:33,503 INFO L85 PathProgramCache]: Analyzing trace with hash -26246696, now seen corresponding path program 1 times [2023-12-15 21:37:33,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:33,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382195540] [2023-12-15 21:37:33,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:33,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:33,526 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:33,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [235564898] [2023-12-15 21:37:33,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:33,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:33,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:33,528 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) [2023-12-15 21:37:33,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-15 21:37:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:33,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-15 21:37:33,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:33,806 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 [2023-12-15 21:37:33,852 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-15 21:37:33,852 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:37:33,999 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:33,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:33,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382195540] [2023-12-15 21:37:34,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:34,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235564898] [2023-12-15 21:37:34,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235564898] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 21:37:34,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:37:34,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 13 [2023-12-15 21:37:34,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298366145] [2023-12-15 21:37:34,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:34,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 21:37:34,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:34,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 21:37:34,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-15 21:37:34,001 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) [2023-12-15 21:37:34,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:34,134 INFO L93 Difference]: Finished difference Result 268 states and 371 transitions. [2023-12-15 21:37:34,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 21:37:34,134 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 [2023-12-15 21:37:34,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:34,135 INFO L225 Difference]: With dead ends: 268 [2023-12-15 21:37:34,135 INFO L226 Difference]: Without dead ends: 175 [2023-12-15 21:37:34,136 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 [2023-12-15 21:37:34,136 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, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:37:34,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 1228 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:37:34,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-12-15 21:37:34,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 92. [2023-12-15 21:37:34,140 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) [2023-12-15 21:37:34,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 126 transitions. [2023-12-15 21:37:34,141 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 126 transitions. Word has length 146 [2023-12-15 21:37:34,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:34,141 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 126 transitions. [2023-12-15 21:37:34,141 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) [2023-12-15 21:37:34,141 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 126 transitions. [2023-12-15 21:37:34,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-15 21:37:34,142 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:34,142 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] [2023-12-15 21:37:34,150 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-15 21:37:34,347 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 [2023-12-15 21:37:34,348 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:34,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:34,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1532718106, now seen corresponding path program 1 times [2023-12-15 21:37:34,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:34,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747032149] [2023-12-15 21:37:34,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:34,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:34,368 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:34,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1266062352] [2023-12-15 21:37:34,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:34,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:34,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:34,369 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) [2023-12-15 21:37:34,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-15 21:37:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:34,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-15 21:37:34,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:34,571 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:34,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:34,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:34,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747032149] [2023-12-15 21:37:34,571 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:34,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266062352] [2023-12-15 21:37:34,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266062352] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:34,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:34,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:37:34,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424631513] [2023-12-15 21:37:34,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:34,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:37:34,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:34,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:37:34,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:37:34,574 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) [2023-12-15 21:37:34,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:34,612 INFO L93 Difference]: Finished difference Result 201 states and 275 transitions. [2023-12-15 21:37:34,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 21:37:34,612 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 [2023-12-15 21:37:34,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:34,613 INFO L225 Difference]: With dead ends: 201 [2023-12-15 21:37:34,613 INFO L226 Difference]: Without dead ends: 110 [2023-12-15 21:37:34,613 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 [2023-12-15 21:37:34,613 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 [2023-12-15 21:37:34,614 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] [2023-12-15 21:37:34,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-12-15 21:37:34,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 95. [2023-12-15 21:37:34,616 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) [2023-12-15 21:37:34,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 129 transitions. [2023-12-15 21:37:34,616 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 129 transitions. Word has length 146 [2023-12-15 21:37:34,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:34,617 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 129 transitions. [2023-12-15 21:37:34,617 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) [2023-12-15 21:37:34,617 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 129 transitions. [2023-12-15 21:37:34,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-15 21:37:34,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:34,618 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] [2023-12-15 21:37:34,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:34,823 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 [2023-12-15 21:37:34,823 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:34,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:34,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1280630248, now seen corresponding path program 1 times [2023-12-15 21:37:34,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:34,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452586555] [2023-12-15 21:37:34,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:34,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:34,866 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:34,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1152828645] [2023-12-15 21:37:34,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:34,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:34,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:34,879 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) [2023-12-15 21:37:34,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-15 21:37:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:35,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 21:37:35,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:35,112 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 [2023-12-15 21:37:35,119 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:35,119 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:35,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:35,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452586555] [2023-12-15 21:37:35,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:35,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152828645] [2023-12-15 21:37:35,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152828645] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:35,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:35,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:37:35,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224316133] [2023-12-15 21:37:35,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:35,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:37:35,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:35,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:37:35,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:37:35,121 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) [2023-12-15 21:37:35,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:35,163 INFO L93 Difference]: Finished difference Result 254 states and 339 transitions. [2023-12-15 21:37:35,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 21:37:35,164 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 [2023-12-15 21:37:35,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:35,165 INFO L225 Difference]: With dead ends: 254 [2023-12-15 21:37:35,165 INFO L226 Difference]: Without dead ends: 160 [2023-12-15 21:37:35,165 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 [2023-12-15 21:37:35,165 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 [2023-12-15 21:37:35,166 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] [2023-12-15 21:37:35,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-12-15 21:37:35,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 142. [2023-12-15 21:37:35,169 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) [2023-12-15 21:37:35,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 188 transitions. [2023-12-15 21:37:35,170 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 188 transitions. Word has length 148 [2023-12-15 21:37:35,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:35,170 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 188 transitions. [2023-12-15 21:37:35,170 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) [2023-12-15 21:37:35,170 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 188 transitions. [2023-12-15 21:37:35,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-15 21:37:35,171 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:35,171 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] [2023-12-15 21:37:35,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:35,377 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 [2023-12-15 21:37:35,377 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:35,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:35,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1143921882, now seen corresponding path program 1 times [2023-12-15 21:37:35,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:35,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626599197] [2023-12-15 21:37:35,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:35,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:35,411 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:35,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [246705865] [2023-12-15 21:37:35,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:35,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:35,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:35,412 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) [2023-12-15 21:37:35,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-15 21:37:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:35,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-15 21:37:35,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:35,621 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 [2023-12-15 21:37:35,624 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 [2023-12-15 21:37:35,629 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:35,629 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:35,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:35,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626599197] [2023-12-15 21:37:35,630 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:35,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246705865] [2023-12-15 21:37:35,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246705865] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:35,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:35,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:37:35,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450218880] [2023-12-15 21:37:35,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:35,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 21:37:35,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:35,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 21:37:35,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:37:35,631 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) [2023-12-15 21:37:35,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:35,642 INFO L93 Difference]: Finished difference Result 283 states and 375 transitions. [2023-12-15 21:37:35,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 21:37:35,643 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 [2023-12-15 21:37:35,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:35,644 INFO L225 Difference]: With dead ends: 283 [2023-12-15 21:37:35,644 INFO L226 Difference]: Without dead ends: 142 [2023-12-15 21:37:35,645 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 [2023-12-15 21:37:35,645 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 [2023-12-15 21:37:35,645 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] [2023-12-15 21:37:35,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-15 21:37:35,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-12-15 21:37:35,648 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) [2023-12-15 21:37:35,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 186 transitions. [2023-12-15 21:37:35,649 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 186 transitions. Word has length 148 [2023-12-15 21:37:35,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:35,649 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 186 transitions. [2023-12-15 21:37:35,649 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) [2023-12-15 21:37:35,649 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 186 transitions. [2023-12-15 21:37:35,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-15 21:37:35,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:35,650 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] [2023-12-15 21:37:35,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:35,856 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 [2023-12-15 21:37:35,857 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:35,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:35,857 INFO L85 PathProgramCache]: Analyzing trace with hash -313637823, now seen corresponding path program 1 times [2023-12-15 21:37:35,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:35,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623645531] [2023-12-15 21:37:35,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:35,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:35,876 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:35,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2018026607] [2023-12-15 21:37:35,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:35,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:35,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:35,877 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) [2023-12-15 21:37:35,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-15 21:37:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:36,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-15 21:37:36,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:36,090 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 [2023-12-15 21:37:36,154 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:36,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:36,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:36,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623645531] [2023-12-15 21:37:36,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:36,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018026607] [2023-12-15 21:37:36,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018026607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:36,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:36,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 21:37:36,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854936285] [2023-12-15 21:37:36,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:36,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 21:37:36,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:36,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 21:37:36,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:37:36,156 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) [2023-12-15 21:37:36,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:36,290 INFO L93 Difference]: Finished difference Result 191 states and 247 transitions. [2023-12-15 21:37:36,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 21:37:36,290 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 [2023-12-15 21:37:36,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:36,291 INFO L225 Difference]: With dead ends: 191 [2023-12-15 21:37:36,291 INFO L226 Difference]: Without dead ends: 189 [2023-12-15 21:37:36,292 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 [2023-12-15 21:37:36,292 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 [2023-12-15 21:37:36,292 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] [2023-12-15 21:37:36,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-12-15 21:37:36,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 170. [2023-12-15 21:37:36,298 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) [2023-12-15 21:37:36,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 220 transitions. [2023-12-15 21:37:36,298 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 220 transitions. Word has length 150 [2023-12-15 21:37:36,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:36,299 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 220 transitions. [2023-12-15 21:37:36,299 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) [2023-12-15 21:37:36,299 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 220 transitions. [2023-12-15 21:37:36,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-15 21:37:36,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:36,300 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] [2023-12-15 21:37:36,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:36,505 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 [2023-12-15 21:37:36,506 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:36,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:36,506 INFO L85 PathProgramCache]: Analyzing trace with hash -313578241, now seen corresponding path program 1 times [2023-12-15 21:37:36,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:36,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369131200] [2023-12-15 21:37:36,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:36,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:36,525 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:36,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [140763514] [2023-12-15 21:37:36,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:36,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:36,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:36,527 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) [2023-12-15 21:37:36,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-15 21:37:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:36,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-15 21:37:36,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:36,810 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 [2023-12-15 21:37:36,849 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:36,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:36,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:36,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369131200] [2023-12-15 21:37:36,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:36,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140763514] [2023-12-15 21:37:36,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140763514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:36,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:36,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:37:36,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682024833] [2023-12-15 21:37:36,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:36,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:37:36,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:36,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:37:36,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:37:36,851 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) [2023-12-15 21:37:36,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:36,929 INFO L93 Difference]: Finished difference Result 360 states and 469 transitions. [2023-12-15 21:37:36,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:37:36,929 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 [2023-12-15 21:37:36,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:36,930 INFO L225 Difference]: With dead ends: 360 [2023-12-15 21:37:36,931 INFO L226 Difference]: Without dead ends: 211 [2023-12-15 21:37:36,931 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 [2023-12-15 21:37:36,931 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 104 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2023-12-15 21:37:36,931 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] [2023-12-15 21:37:36,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-12-15 21:37:36,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 198. [2023-12-15 21:37:36,939 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) [2023-12-15 21:37:36,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 257 transitions. [2023-12-15 21:37:36,939 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 257 transitions. Word has length 150 [2023-12-15 21:37:36,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:36,940 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 257 transitions. [2023-12-15 21:37:36,940 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) [2023-12-15 21:37:36,940 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 257 transitions. [2023-12-15 21:37:36,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-15 21:37:36,941 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:36,941 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] [2023-12-15 21:37:36,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:37,147 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 [2023-12-15 21:37:37,147 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:37,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:37,148 INFO L85 PathProgramCache]: Analyzing trace with hash -256319939, now seen corresponding path program 1 times [2023-12-15 21:37:37,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:37,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044576680] [2023-12-15 21:37:37,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:37,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:37,166 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:37,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808917164] [2023-12-15 21:37:37,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:37,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:37,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:37,167 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) [2023-12-15 21:37:37,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-15 21:37:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:37,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-15 21:37:37,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:37,410 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 [2023-12-15 21:37:37,432 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:37,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:37,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:37,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044576680] [2023-12-15 21:37:37,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:37,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808917164] [2023-12-15 21:37:37,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808917164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:37,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:37,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:37:37,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161173698] [2023-12-15 21:37:37,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:37,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:37:37,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:37,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:37:37,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:37:37,433 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) [2023-12-15 21:37:37,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:37,475 INFO L93 Difference]: Finished difference Result 369 states and 476 transitions. [2023-12-15 21:37:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:37:37,475 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 [2023-12-15 21:37:37,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:37,476 INFO L225 Difference]: With dead ends: 369 [2023-12-15 21:37:37,476 INFO L226 Difference]: Without dead ends: 220 [2023-12-15 21:37:37,477 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 [2023-12-15 21:37:37,477 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 [2023-12-15 21:37:37,477 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] [2023-12-15 21:37:37,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-12-15 21:37:37,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 198. [2023-12-15 21:37:37,484 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) [2023-12-15 21:37:37,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 255 transitions. [2023-12-15 21:37:37,485 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 255 transitions. Word has length 150 [2023-12-15 21:37:37,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:37,485 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 255 transitions. [2023-12-15 21:37:37,485 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) [2023-12-15 21:37:37,485 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 255 transitions. [2023-12-15 21:37:37,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-15 21:37:37,486 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:37,486 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] [2023-12-15 21:37:37,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:37,692 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 [2023-12-15 21:37:37,692 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:37,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:37,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1065666565, now seen corresponding path program 1 times [2023-12-15 21:37:37,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:37,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023605604] [2023-12-15 21:37:37,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:37,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:37,709 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:37,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1441976128] [2023-12-15 21:37:37,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:37,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:37,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:37,711 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) [2023-12-15 21:37:37,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-15 21:37:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:37,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-15 21:37:37,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:37,942 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:37,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:37,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:37,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023605604] [2023-12-15 21:37:37,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:37,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441976128] [2023-12-15 21:37:37,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441976128] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:37,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:37,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:37:37,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617952377] [2023-12-15 21:37:37,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:37,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:37:37,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:37,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:37:37,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:37:37,944 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) [2023-12-15 21:37:37,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:37,976 INFO L93 Difference]: Finished difference Result 363 states and 461 transitions. [2023-12-15 21:37:37,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:37:37,976 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 [2023-12-15 21:37:37,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:37,977 INFO L225 Difference]: With dead ends: 363 [2023-12-15 21:37:37,977 INFO L226 Difference]: Without dead ends: 214 [2023-12-15 21:37:37,977 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 [2023-12-15 21:37:37,978 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 [2023-12-15 21:37:37,978 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] [2023-12-15 21:37:37,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-12-15 21:37:37,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 204. [2023-12-15 21:37:37,985 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) [2023-12-15 21:37:37,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 261 transitions. [2023-12-15 21:37:37,985 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 261 transitions. Word has length 150 [2023-12-15 21:37:37,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:37,986 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 261 transitions. [2023-12-15 21:37:37,986 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) [2023-12-15 21:37:37,986 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 261 transitions. [2023-12-15 21:37:37,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-15 21:37:37,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:37,986 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] [2023-12-15 21:37:38,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:38,192 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 [2023-12-15 21:37:38,192 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:38,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:38,193 INFO L85 PathProgramCache]: Analyzing trace with hash -308746224, now seen corresponding path program 1 times [2023-12-15 21:37:38,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:38,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582941793] [2023-12-15 21:37:38,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:38,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:38,210 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:38,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [333998797] [2023-12-15 21:37:38,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:38,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:38,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:38,212 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) [2023-12-15 21:37:38,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-15 21:37:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:38,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-15 21:37:38,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:38,475 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 [2023-12-15 21:37:38,500 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 [2023-12-15 21:37:38,521 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-15 21:37:38,521 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:37:38,607 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:38,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:38,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582941793] [2023-12-15 21:37:38,608 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:38,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333998797] [2023-12-15 21:37:38,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333998797] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 21:37:38,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:37:38,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2023-12-15 21:37:38,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750790200] [2023-12-15 21:37:38,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:38,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 21:37:38,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:38,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 21:37:38,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-15 21:37:38,609 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) [2023-12-15 21:37:38,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:38,822 INFO L93 Difference]: Finished difference Result 416 states and 521 transitions. [2023-12-15 21:37:38,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-15 21:37:38,823 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 [2023-12-15 21:37:38,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:38,824 INFO L225 Difference]: With dead ends: 416 [2023-12-15 21:37:38,824 INFO L226 Difference]: Without dead ends: 261 [2023-12-15 21:37:38,824 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 [2023-12-15 21:37:38,825 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 [2023-12-15 21:37:38,825 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] [2023-12-15 21:37:38,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-12-15 21:37:38,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 217. [2023-12-15 21:37:38,836 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) [2023-12-15 21:37:38,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 277 transitions. [2023-12-15 21:37:38,837 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 277 transitions. Word has length 151 [2023-12-15 21:37:38,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:38,837 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 277 transitions. [2023-12-15 21:37:38,838 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) [2023-12-15 21:37:38,838 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 277 transitions. [2023-12-15 21:37:38,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-15 21:37:38,838 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:38,838 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] [2023-12-15 21:37:38,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:39,045 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 [2023-12-15 21:37:39,045 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:39,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:39,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1229082198, now seen corresponding path program 1 times [2023-12-15 21:37:39,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:39,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884543770] [2023-12-15 21:37:39,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:39,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:39,064 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:39,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139733453] [2023-12-15 21:37:39,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:39,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:39,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:39,065 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) [2023-12-15 21:37:39,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-15 21:37:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:39,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-15 21:37:39,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:39,471 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 [2023-12-15 21:37:39,480 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 [2023-12-15 21:37:39,486 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 [2023-12-15 21:37:39,493 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 [2023-12-15 21:37:39,524 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:39,524 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:39,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:39,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884543770] [2023-12-15 21:37:39,525 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:39,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139733453] [2023-12-15 21:37:39,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139733453] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:39,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:39,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:37:39,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438544690] [2023-12-15 21:37:39,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:39,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:37:39,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:39,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:37:39,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:37:39,526 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) [2023-12-15 21:37:39,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:39,738 INFO L93 Difference]: Finished difference Result 512 states and 632 transitions. [2023-12-15 21:37:39,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 21:37:39,738 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 [2023-12-15 21:37:39,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:39,740 INFO L225 Difference]: With dead ends: 512 [2023-12-15 21:37:39,740 INFO L226 Difference]: Without dead ends: 344 [2023-12-15 21:37:39,740 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 [2023-12-15 21:37:39,741 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 [2023-12-15 21:37:39,741 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] [2023-12-15 21:37:39,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-12-15 21:37:39,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 207. [2023-12-15 21:37:39,752 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) [2023-12-15 21:37:39,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 253 transitions. [2023-12-15 21:37:39,753 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 253 transitions. Word has length 152 [2023-12-15 21:37:39,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:39,753 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 253 transitions. [2023-12-15 21:37:39,753 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) [2023-12-15 21:37:39,753 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 253 transitions. [2023-12-15 21:37:39,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-15 21:37:39,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:39,754 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] [2023-12-15 21:37:39,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:39,961 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 [2023-12-15 21:37:39,961 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:39,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:39,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1378220619, now seen corresponding path program 1 times [2023-12-15 21:37:39,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:39,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586496691] [2023-12-15 21:37:39,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:39,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:39,980 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:39,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [629989497] [2023-12-15 21:37:39,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:39,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:39,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:39,988 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) [2023-12-15 21:37:40,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-15 21:37:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:40,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-15 21:37:40,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:40,254 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 [2023-12-15 21:37:40,256 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 [2023-12-15 21:37:40,258 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 21 treesize of output 13 [2023-12-15 21:37:40,265 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:40,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:40,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:40,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586496691] [2023-12-15 21:37:40,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:40,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629989497] [2023-12-15 21:37:40,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629989497] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:40,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:40,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 21:37:40,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381986486] [2023-12-15 21:37:40,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:40,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:37:40,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:40,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:37:40,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:37:40,266 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) [2023-12-15 21:37:40,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:40,345 INFO L93 Difference]: Finished difference Result 528 states and 635 transitions. [2023-12-15 21:37:40,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 21:37:40,345 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 [2023-12-15 21:37:40,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:40,346 INFO L225 Difference]: With dead ends: 528 [2023-12-15 21:37:40,347 INFO L226 Difference]: Without dead ends: 322 [2023-12-15 21:37:40,347 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 [2023-12-15 21:37:40,347 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 85 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2023-12-15 21:37:40,348 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] [2023-12-15 21:37:40,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-12-15 21:37:40,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 235. [2023-12-15 21:37:40,357 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) [2023-12-15 21:37:40,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 285 transitions. [2023-12-15 21:37:40,358 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 285 transitions. Word has length 153 [2023-12-15 21:37:40,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:40,358 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 285 transitions. [2023-12-15 21:37:40,358 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) [2023-12-15 21:37:40,358 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 285 transitions. [2023-12-15 21:37:40,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-15 21:37:40,359 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:40,359 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] [2023-12-15 21:37:40,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:40,565 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 [2023-12-15 21:37:40,565 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:40,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:40,565 INFO L85 PathProgramCache]: Analyzing trace with hash 988748987, now seen corresponding path program 1 times [2023-12-15 21:37:40,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:40,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107597694] [2023-12-15 21:37:40,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:40,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:40,584 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:40,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [558446639] [2023-12-15 21:37:40,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:40,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:40,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:40,601 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) [2023-12-15 21:37:40,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-15 21:37:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:41,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 101 conjunts are in the unsatisfiable core [2023-12-15 21:37:41,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:43,240 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 [2023-12-15 21:37:43,770 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 [2023-12-15 21:37:44,113 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 [2023-12-15 21:37:44,557 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 [2023-12-15 21:37:44,715 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 [2023-12-15 21:37:45,164 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 [2023-12-15 21:37:45,220 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 [2023-12-15 21:37:45,325 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 2 proven. 338 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-15 21:37:45,325 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:37:45,959 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:45,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:45,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107597694] [2023-12-15 21:37:45,959 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:45,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558446639] [2023-12-15 21:37:45,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558446639] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 21:37:45,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:37:45,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [28] total 38 [2023-12-15 21:37:45,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858694621] [2023-12-15 21:37:45,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:45,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-15 21:37:45,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:45,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-15 21:37:45,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2023-12-15 21:37:45,963 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) [2023-12-15 21:37:46,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:46,865 INFO L93 Difference]: Finished difference Result 675 states and 806 transitions. [2023-12-15 21:37:46,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-15 21:37:46,866 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 [2023-12-15 21:37:46,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:46,868 INFO L225 Difference]: With dead ends: 675 [2023-12-15 21:37:46,868 INFO L226 Difference]: Without dead ends: 441 [2023-12-15 21:37:46,869 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 [2023-12-15 21:37:46,869 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 [2023-12-15 21:37:46,869 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] [2023-12-15 21:37:46,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-12-15 21:37:46,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 392. [2023-12-15 21:37:46,890 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) [2023-12-15 21:37:46,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 472 transitions. [2023-12-15 21:37:46,892 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 472 transitions. Word has length 154 [2023-12-15 21:37:46,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:46,892 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 472 transitions. [2023-12-15 21:37:46,892 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) [2023-12-15 21:37:46,892 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 472 transitions. [2023-12-15 21:37:46,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-15 21:37:46,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:46,897 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] [2023-12-15 21:37:46,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:47,105 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 [2023-12-15 21:37:47,105 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:47,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:47,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1246914425, now seen corresponding path program 1 times [2023-12-15 21:37:47,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:47,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54574965] [2023-12-15 21:37:47,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:47,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:47,124 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:47,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [650891436] [2023-12-15 21:37:47,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:47,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:47,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:47,125 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) [2023-12-15 21:37:47,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-15 21:37:47,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:47,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-15 21:37:47,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:47,397 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 [2023-12-15 21:37:47,399 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 [2023-12-15 21:37:47,404 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:47,404 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:47,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:47,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54574965] [2023-12-15 21:37:47,404 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:47,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650891436] [2023-12-15 21:37:47,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650891436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:47,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:47,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:37:47,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460743620] [2023-12-15 21:37:47,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:47,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:37:47,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:47,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:37:47,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:37:47,405 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) [2023-12-15 21:37:47,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:47,519 INFO L93 Difference]: Finished difference Result 826 states and 986 transitions. [2023-12-15 21:37:47,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 21:37:47,520 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 [2023-12-15 21:37:47,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:47,524 INFO L225 Difference]: With dead ends: 826 [2023-12-15 21:37:47,524 INFO L226 Difference]: Without dead ends: 435 [2023-12-15 21:37:47,527 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 [2023-12-15 21:37:47,528 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 [2023-12-15 21:37:47,528 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] [2023-12-15 21:37:47,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2023-12-15 21:37:47,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 388. [2023-12-15 21:37:47,554 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) [2023-12-15 21:37:47,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 465 transitions. [2023-12-15 21:37:47,555 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 465 transitions. Word has length 154 [2023-12-15 21:37:47,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:47,556 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 465 transitions. [2023-12-15 21:37:47,556 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) [2023-12-15 21:37:47,556 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 465 transitions. [2023-12-15 21:37:47,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-15 21:37:47,557 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:47,557 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] [2023-12-15 21:37:47,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:47,763 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 [2023-12-15 21:37:47,763 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:47,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:47,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1920014915, now seen corresponding path program 1 times [2023-12-15 21:37:47,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:47,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468780825] [2023-12-15 21:37:47,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:47,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:47,791 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:47,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009199334] [2023-12-15 21:37:47,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:47,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:47,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:47,792 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) [2023-12-15 21:37:47,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-15 21:37:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:48,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-15 21:37:48,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:48,058 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 [2023-12-15 21:37:48,059 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 [2023-12-15 21:37:48,064 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:48,065 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:48,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:48,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468780825] [2023-12-15 21:37:48,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:48,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009199334] [2023-12-15 21:37:48,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009199334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:48,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:48,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:37:48,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005763848] [2023-12-15 21:37:48,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:48,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:37:48,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:48,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:37:48,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:37:48,066 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) [2023-12-15 21:37:48,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:48,209 INFO L93 Difference]: Finished difference Result 885 states and 1059 transitions. [2023-12-15 21:37:48,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 21:37:48,210 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 [2023-12-15 21:37:48,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:48,211 INFO L225 Difference]: With dead ends: 885 [2023-12-15 21:37:48,211 INFO L226 Difference]: Without dead ends: 498 [2023-12-15 21:37:48,212 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 [2023-12-15 21:37:48,213 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 [2023-12-15 21:37:48,213 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] [2023-12-15 21:37:48,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-12-15 21:37:48,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 480. [2023-12-15 21:37:48,237 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) [2023-12-15 21:37:48,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 576 transitions. [2023-12-15 21:37:48,238 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 576 transitions. Word has length 154 [2023-12-15 21:37:48,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:48,238 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 576 transitions. [2023-12-15 21:37:48,239 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) [2023-12-15 21:37:48,239 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 576 transitions. [2023-12-15 21:37:48,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-15 21:37:48,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:48,240 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] [2023-12-15 21:37:48,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:48,445 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 [2023-12-15 21:37:48,446 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:48,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:48,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1661849477, now seen corresponding path program 1 times [2023-12-15 21:37:48,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:48,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232730584] [2023-12-15 21:37:48,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:48,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:48,464 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:48,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [8599632] [2023-12-15 21:37:48,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:48,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:48,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:48,466 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) [2023-12-15 21:37:48,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-15 21:37:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:48,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 88 conjunts are in the unsatisfiable core [2023-12-15 21:37:48,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:50,279 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 [2023-12-15 21:37:50,817 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 [2023-12-15 21:37:51,380 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 [2023-12-15 21:37:51,830 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 [2023-12-15 21:37:51,869 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 [2023-12-15 21:37:51,961 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 322 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-12-15 21:37:51,961 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:37:52,419 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:52,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:52,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232730584] [2023-12-15 21:37:52,419 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:52,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8599632] [2023-12-15 21:37:52,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8599632] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 21:37:52,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:37:52,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [27] total 37 [2023-12-15 21:37:52,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473083934] [2023-12-15 21:37:52,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:52,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-15 21:37:52,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:52,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-15 21:37:52,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1199, Unknown=0, NotChecked=0, Total=1332 [2023-12-15 21:37:52,421 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) [2023-12-15 21:37:53,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:53,159 INFO L93 Difference]: Finished difference Result 1020 states and 1220 transitions. [2023-12-15 21:37:53,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-15 21:37:53,160 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 [2023-12-15 21:37:53,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:53,163 INFO L225 Difference]: With dead ends: 1020 [2023-12-15 21:37:53,163 INFO L226 Difference]: Without dead ends: 541 [2023-12-15 21:37:53,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=233, Invalid=1929, Unknown=0, NotChecked=0, Total=2162 [2023-12-15 21:37:53,165 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 [2023-12-15 21:37:53,165 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] [2023-12-15 21:37:53,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-12-15 21:37:53,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 506. [2023-12-15 21:37:53,210 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) [2023-12-15 21:37:53,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 609 transitions. [2023-12-15 21:37:53,212 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 609 transitions. Word has length 154 [2023-12-15 21:37:53,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:53,212 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 609 transitions. [2023-12-15 21:37:53,212 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) [2023-12-15 21:37:53,212 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 609 transitions. [2023-12-15 21:37:53,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-15 21:37:53,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:53,213 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] [2023-12-15 21:37:53,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-12-15 21:37:53,419 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 [2023-12-15 21:37:53,419 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:53,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:53,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1734224111, now seen corresponding path program 1 times [2023-12-15 21:37:53,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:53,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324210988] [2023-12-15 21:37:53,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:53,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:53,452 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:53,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1500177422] [2023-12-15 21:37:53,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:53,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:53,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:53,454 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) [2023-12-15 21:37:53,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-15 21:37:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:53,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-15 21:37:53,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:53,725 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 [2023-12-15 21:37:53,751 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 [2023-12-15 21:37:53,777 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-15 21:37:53,777 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:37:53,880 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:37:53,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:53,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324210988] [2023-12-15 21:37:53,880 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:53,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500177422] [2023-12-15 21:37:53,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500177422] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 21:37:53,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:37:53,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 14 [2023-12-15 21:37:53,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561381635] [2023-12-15 21:37:53,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:53,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 21:37:53,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:53,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 21:37:53,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-15 21:37:53,881 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) [2023-12-15 21:37:54,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:54,207 INFO L93 Difference]: Finished difference Result 1025 states and 1222 transitions. [2023-12-15 21:37:54,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-15 21:37:54,208 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 [2023-12-15 21:37:54,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:54,208 INFO L225 Difference]: With dead ends: 1025 [2023-12-15 21:37:54,208 INFO L226 Difference]: Without dead ends: 0 [2023-12-15 21:37:54,210 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 [2023-12-15 21:37:54,211 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, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:37:54,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 934 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:37:54,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-15 21:37:54,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-15 21:37:54,211 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) [2023-12-15 21:37:54,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-15 21:37:54,212 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2023-12-15 21:37:54,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:54,212 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-15 21:37:54,212 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) [2023-12-15 21:37:54,212 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-15 21:37:54,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-15 21:37:54,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 21:37:54,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:54,421 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 [2023-12-15 21:37:54,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-15 21:37:56,039 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-15 21:37:56,040 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-15 21:37:56,040 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-15 21:37:56,040 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-15 21:37:56,040 INFO L899 garLoopResultBuilder]: For program point L117-20(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,040 INFO L899 garLoopResultBuilder]: For program point L117-22(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,040 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))) [2023-12-15 21:37:56,040 INFO L899 garLoopResultBuilder]: For program point L117-24(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,040 INFO L899 garLoopResultBuilder]: For program point L93-1(line 93) no Hoare annotation was computed. [2023-12-15 21:37:56,040 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 68) no Hoare annotation was computed. [2023-12-15 21:37:56,040 INFO L899 garLoopResultBuilder]: For program point L117-26(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,040 INFO L899 garLoopResultBuilder]: For program point L117-27(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,040 INFO L899 garLoopResultBuilder]: For program point L117-29(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,040 INFO L899 garLoopResultBuilder]: For program point L117-30(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,040 INFO L899 garLoopResultBuilder]: For program point L117-32(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,040 INFO L899 garLoopResultBuilder]: For program point L117-33(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,040 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-15 21:37:56,040 INFO L899 garLoopResultBuilder]: For program point L117-35(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,040 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-15 21:37:56,041 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-15 21:37:56,041 INFO L902 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: true [2023-12-15 21:37:56,041 INFO L899 garLoopResultBuilder]: For program point L110-1(line 110) no Hoare annotation was computed. [2023-12-15 21:37:56,041 INFO L902 garLoopResultBuilder]: At program point L102(line 102) the Hoare annotation is: true [2023-12-15 21:37:56,041 INFO L899 garLoopResultBuilder]: For program point L102-1(line 102) no Hoare annotation was computed. [2023-12-15 21:37:56,041 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 65) no Hoare annotation was computed. [2023-12-15 21:37:56,041 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)))) [2023-12-15 21:37:56,041 INFO L899 garLoopResultBuilder]: For program point L86-1(line 86) no Hoare annotation was computed. [2023-12-15 21:37:56,041 INFO L902 garLoopResultBuilder]: At program point L103(line 103) the Hoare annotation is: true [2023-12-15 21:37:56,041 INFO L899 garLoopResultBuilder]: For program point L103-1(line 103) no Hoare annotation was computed. [2023-12-15 21:37:56,041 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 72) no Hoare annotation was computed. [2023-12-15 21:37:56,041 INFO L899 garLoopResultBuilder]: For program point L70-2(lines 70 72) no Hoare annotation was computed. [2023-12-15 21:37:56,041 INFO L902 garLoopResultBuilder]: At program point L95(line 95) the Hoare annotation is: true [2023-12-15 21:37:56,041 INFO L899 garLoopResultBuilder]: For program point L95-1(line 95) no Hoare annotation was computed. [2023-12-15 21:37:56,041 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)))) [2023-12-15 21:37:56,041 INFO L899 garLoopResultBuilder]: For program point L87-1(line 87) no Hoare annotation was computed. [2023-12-15 21:37:56,041 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-15 21:37:56,041 INFO L902 garLoopResultBuilder]: At program point L104(line 104) the Hoare annotation is: true [2023-12-15 21:37:56,041 INFO L899 garLoopResultBuilder]: For program point L104-1(line 104) no Hoare annotation was computed. [2023-12-15 21:37:56,042 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2023-12-15 21:37:56,042 INFO L899 garLoopResultBuilder]: For program point L71-2(line 71) no Hoare annotation was computed. [2023-12-15 21:37:56,042 INFO L902 garLoopResultBuilder]: At program point L96(line 96) the Hoare annotation is: true [2023-12-15 21:37:56,042 INFO L899 garLoopResultBuilder]: For program point L96-1(line 96) no Hoare annotation was computed. [2023-12-15 21:37:56,042 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))) [2023-12-15 21:37:56,042 INFO L899 garLoopResultBuilder]: For program point L89-1(line 89) no Hoare annotation was computed. [2023-12-15 21:37:56,042 INFO L902 garLoopResultBuilder]: At program point L106(line 106) the Hoare annotation is: true [2023-12-15 21:37:56,042 INFO L899 garLoopResultBuilder]: For program point L106-1(line 106) no Hoare annotation was computed. [2023-12-15 21:37:56,042 INFO L902 garLoopResultBuilder]: At program point L98(line 98) the Hoare annotation is: true [2023-12-15 21:37:56,042 INFO L899 garLoopResultBuilder]: For program point L98-1(line 98) no Hoare annotation was computed. [2023-12-15 21:37:56,042 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))) [2023-12-15 21:37:56,042 INFO L899 garLoopResultBuilder]: For program point L90-1(line 90) no Hoare annotation was computed. [2023-12-15 21:37:56,042 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)))) [2023-12-15 21:37:56,042 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-15 21:37:56,042 INFO L899 garLoopResultBuilder]: For program point L123-3(lines 123 129) no Hoare annotation was computed. [2023-12-15 21:37:56,042 INFO L902 garLoopResultBuilder]: At program point L107(line 107) the Hoare annotation is: true [2023-12-15 21:37:56,042 INFO L899 garLoopResultBuilder]: For program point L107-1(line 107) no Hoare annotation was computed. [2023-12-15 21:37:56,043 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 76) no Hoare annotation was computed. [2023-12-15 21:37:56,043 INFO L899 garLoopResultBuilder]: For program point L74-2(lines 74 76) no Hoare annotation was computed. [2023-12-15 21:37:56,043 INFO L902 garLoopResultBuilder]: At program point L99(line 99) the Hoare annotation is: true [2023-12-15 21:37:56,043 INFO L899 garLoopResultBuilder]: For program point L99-1(line 99) no Hoare annotation was computed. [2023-12-15 21:37:56,043 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-15 21:37:56,043 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)))) [2023-12-15 21:37:56,043 INFO L899 garLoopResultBuilder]: For program point L83-1(line 83) no Hoare annotation was computed. [2023-12-15 21:37:56,043 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-12-15 21:37:56,043 INFO L899 garLoopResultBuilder]: For program point L75-2(line 75) no Hoare annotation was computed. [2023-12-15 21:37:56,043 INFO L902 garLoopResultBuilder]: At program point L100(line 100) the Hoare annotation is: true [2023-12-15 21:37:56,043 INFO L899 garLoopResultBuilder]: For program point L100-1(line 100) no Hoare annotation was computed. [2023-12-15 21:37:56,043 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))) [2023-12-15 21:37:56,043 INFO L899 garLoopResultBuilder]: For program point L92-1(line 92) no Hoare annotation was computed. [2023-12-15 21:37:56,043 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 69) no Hoare annotation was computed. [2023-12-15 21:37:56,043 INFO L899 garLoopResultBuilder]: For program point L59-1(lines 59 69) no Hoare annotation was computed. [2023-12-15 21:37:56,043 INFO L899 garLoopResultBuilder]: For program point L117(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,043 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)))) [2023-12-15 21:37:56,043 INFO L899 garLoopResultBuilder]: For program point L117-1(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,043 INFO L899 garLoopResultBuilder]: For program point L84-1(line 84) no Hoare annotation was computed. [2023-12-15 21:37:56,044 INFO L899 garLoopResultBuilder]: For program point L117-3(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,044 INFO L899 garLoopResultBuilder]: For program point L117-5(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,044 INFO L899 garLoopResultBuilder]: For program point L117-6(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,044 INFO L899 garLoopResultBuilder]: For program point L117-7(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,044 INFO L902 garLoopResultBuilder]: At program point L109(line 109) the Hoare annotation is: true [2023-12-15 21:37:56,044 INFO L899 garLoopResultBuilder]: For program point L117-8(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,044 INFO L899 garLoopResultBuilder]: For program point L109-1(line 109) no Hoare annotation was computed. [2023-12-15 21:37:56,044 INFO L899 garLoopResultBuilder]: For program point L117-9(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,044 INFO L899 garLoopResultBuilder]: For program point L117-11(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,044 INFO L899 garLoopResultBuilder]: For program point L117-13(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,044 INFO L899 garLoopResultBuilder]: For program point L117-15(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,044 INFO L899 garLoopResultBuilder]: For program point L117-17(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,044 INFO L899 garLoopResultBuilder]: For program point L117-18(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,044 INFO L899 garLoopResultBuilder]: For program point L117-19(line 117) no Hoare annotation was computed. [2023-12-15 21:37:56,046 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] [2023-12-15 21:37:56,047 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 21:37:56,054 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 [2023-12-15 21:37:56,056 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 [2023-12-15 21:37:56,057 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 [2023-12-15 21:37:56,057 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 [2023-12-15 21:37:56,057 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 [2023-12-15 21:37:56,057 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 [2023-12-15 21:37:56,057 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 [2023-12-15 21:37:56,057 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 [2023-12-15 21:37:56,057 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 [2023-12-15 21:37:56,057 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 [2023-12-15 21:37:56,057 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 [2023-12-15 21:37:56,057 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 [2023-12-15 21:37:56,057 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 [2023-12-15 21:37:56,057 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 [2023-12-15 21:37:56,057 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 [2023-12-15 21:37:56,057 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 [2023-12-15 21:37:56,057 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 [2023-12-15 21:37:56,057 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 [2023-12-15 21:37:56,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:37:56 BoogieIcfgContainer [2023-12-15 21:37:56,058 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 21:37:56,058 INFO L158 Benchmark]: Toolchain (without parser) took 28032.43ms. Allocated memory was 295.7MB in the beginning and 744.5MB in the end (delta: 448.8MB). Free memory was 251.9MB in the beginning and 687.9MB in the end (delta: -436.1MB). Peak memory consumption was 440.6MB. Max. memory is 8.0GB. [2023-12-15 21:37:56,058 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 181.4MB. Free memory is still 130.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:37:56,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.48ms. Allocated memory is still 295.7MB. Free memory was 251.9MB in the beginning and 237.3MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-15 21:37:56,059 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.70ms. Allocated memory is still 295.7MB. Free memory was 237.3MB in the beginning and 233.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 21:37:56,059 INFO L158 Benchmark]: Boogie Preprocessor took 70.35ms. Allocated memory is still 295.7MB. Free memory was 233.1MB in the beginning and 228.2MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 21:37:56,059 INFO L158 Benchmark]: RCFGBuilder took 716.46ms. Allocated memory is still 295.7MB. Free memory was 228.2MB in the beginning and 248.2MB in the end (delta: -20.0MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-12-15 21:37:56,059 INFO L158 Benchmark]: TraceAbstraction took 26968.18ms. Allocated memory was 295.7MB in the beginning and 744.5MB in the end (delta: 448.8MB). Free memory was 247.7MB in the beginning and 687.9MB in the end (delta: -440.3MB). Peak memory consumption was 435.3MB. Max. memory is 8.0GB. [2023-12-15 21:37:56,060 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 181.4MB. Free memory is still 130.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 229.48ms. Allocated memory is still 295.7MB. Free memory was 251.9MB in the beginning and 237.3MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.70ms. Allocated memory is still 295.7MB. Free memory was 237.3MB in the beginning and 233.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 70.35ms. Allocated memory is still 295.7MB. Free memory was 233.1MB in the beginning and 228.2MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 716.46ms. Allocated memory is still 295.7MB. Free memory was 228.2MB in the beginning and 248.2MB in the end (delta: -20.0MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * TraceAbstraction took 26968.18ms. Allocated memory was 295.7MB in the beginning and 744.5MB in the end (delta: 448.8MB). Free memory was 247.7MB in the beginning and 687.9MB in the end (delta: -440.3MB). Peak memory consumption was 435.3MB. 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: 26.9s, OverallIterations: 24, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1859 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1859 mSDsluCounter, 13859 SdHoareTripleChecker+Invalid, 1.7s 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, 3.4s 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: 0.2s AutomataMinimizationTime, 24 MinimizatonAttempts, 665 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 787 PreInvPairs, 883 NumberOfFragments, 1003 HoareAnnotationTreeSize, 787 FormulaSimplifications, 5252 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 22 FormulaSimplificationsInter, 12701 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 10.1s 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! [2023-12-15 21:37:56,104 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...