/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-pthread/cs_stateful-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:37:13,977 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:37:14,039 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 06:37:14,044 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:37:14,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:37:14,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:37:14,071 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:37:14,071 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:37:14,072 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:37:14,075 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:37:14,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:37:14,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:37:14,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:37:14,077 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:37:14,077 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:37:14,077 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:37:14,077 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:37:14,077 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:37:14,078 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 06:37:14,078 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:37:14,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:37:14,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:37:14,079 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:37:14,079 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:37:14,079 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:37:14,080 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:37:14,080 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:37:14,080 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:37:14,080 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:37:14,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:37:14,081 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:37:14,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:37:14,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:37:14,082 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:37:14,082 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:37:14,082 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:37:14,082 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 06:37:14,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 06:37:14,082 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:37:14,082 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:37:14,082 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:37:14,083 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:37:14,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:37:14,083 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 06:37:14,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:37:14,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:37:14,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:37:14,261 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:37:14,261 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:37:14,262 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_stateful-1.i [2023-12-16 06:37:15,300 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:37:15,493 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:37:15,493 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_stateful-1.i [2023-12-16 06:37:15,504 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d781add1d/bf893c88439c4e1981cf10f16a831fb9/FLAGed1e41e35 [2023-12-16 06:37:15,514 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d781add1d/bf893c88439c4e1981cf10f16a831fb9 [2023-12-16 06:37:15,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:37:15,517 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:37:15,518 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:37:15,518 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:37:15,522 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:37:15,522 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:37:15" (1/1) ... [2023-12-16 06:37:15,523 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5993f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:15, skipping insertion in model container [2023-12-16 06:37:15,523 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:37:15" (1/1) ... [2023-12-16 06:37:15,564 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:37:15,824 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_stateful-1.i[23400,23413] [2023-12-16 06:37:15,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:37:15,949 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:37:15,976 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_stateful-1.i[23400,23413] [2023-12-16 06:37:16,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:37:16,047 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:37:16,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:16 WrapperNode [2023-12-16 06:37:16,048 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:37:16,049 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:37:16,049 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:37:16,049 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:37:16,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:16" (1/1) ... [2023-12-16 06:37:16,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:16" (1/1) ... [2023-12-16 06:37:16,120 INFO L138 Inliner]: procedures = 144, calls = 231, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 570 [2023-12-16 06:37:16,121 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:37:16,121 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:37:16,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:37:16,122 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:37:16,130 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:16" (1/1) ... [2023-12-16 06:37:16,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:16" (1/1) ... [2023-12-16 06:37:16,158 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:16" (1/1) ... [2023-12-16 06:37:16,181 INFO L175 MemorySlicer]: Split 112 memory accesses to 16 slices as follows [2, 8, 8, 20, 12, 10, 10, 3, 0, 4, 3, 12, 3, 7, 3, 7]. 18 percent of accesses are in the largest equivalence class. The 28 initializations are split as follows [2, 3, 3, 6, 6, 2, 2, 0, 0, 0, 0, 4, 0, 0, 0, 0]. The 35 writes are split as follows [0, 2, 2, 8, 3, 4, 4, 1, 0, 2, 1, 4, 1, 1, 1, 1]. [2023-12-16 06:37:16,181 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:16" (1/1) ... [2023-12-16 06:37:16,181 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:16" (1/1) ... [2023-12-16 06:37:16,199 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:16" (1/1) ... [2023-12-16 06:37:16,203 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:16" (1/1) ... [2023-12-16 06:37:16,248 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:16" (1/1) ... [2023-12-16 06:37:16,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:16" (1/1) ... [2023-12-16 06:37:16,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:37:16,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:37:16,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:37:16,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:37:16,260 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:16" (1/1) ... [2023-12-16 06:37:16,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:37:16,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:37:16,292 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 06:37:16,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 06:37:16,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 06:37:16,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 06:37:16,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-16 06:37:16,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-16 06:37:16,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-16 06:37:16,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-16 06:37:16,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-16 06:37:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-16 06:37:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-16 06:37:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-16 06:37:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-16 06:37:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-16 06:37:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-16 06:37:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-16 06:37:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-12-16 06:37:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-12-16 06:37:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 06:37:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 06:37:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-16 06:37:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-16 06:37:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-16 06:37:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-16 06:37:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-16 06:37:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-16 06:37:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-16 06:37:16,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-16 06:37:16,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-16 06:37:16,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-16 06:37:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-16 06:37:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-16 06:37:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-12-16 06:37:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-12-16 06:37:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:37:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-16 06:37:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-16 06:37:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-16 06:37:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-16 06:37:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-12-16 06:37:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-12-16 06:37:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-12-16 06:37:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-12-16 06:37:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-12-16 06:37:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-12-16 06:37:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-12-16 06:37:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-12-16 06:37:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-12-16 06:37:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-12-16 06:37:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-12-16 06:37:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-12-16 06:37:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-12-16 06:37:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_init [2023-12-16 06:37:16,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_init [2023-12-16 06:37:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2023-12-16 06:37:16,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2023-12-16 06:37:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-12-16 06:37:16,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-12-16 06:37:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-16 06:37:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-16 06:37:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-16 06:37:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-12-16 06:37:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-12-16 06:37:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-12-16 06:37:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-12-16 06:37:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-12-16 06:37:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-12-16 06:37:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-12-16 06:37:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-12-16 06:37:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-12-16 06:37:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-12-16 06:37:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-12-16 06:37:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-12-16 06:37:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-12-16 06:37:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-12-16 06:37:16,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-12-16 06:37:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-16 06:37:16,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-16 06:37:16,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-16 06:37:16,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-12-16 06:37:16,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-12-16 06:37:16,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-12-16 06:37:16,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-12-16 06:37:16,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-12-16 06:37:16,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-12-16 06:37:16,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-12-16 06:37:16,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-12-16 06:37:16,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-12-16 06:37:16,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-12-16 06:37:16,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-12-16 06:37:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-12-16 06:37:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-12-16 06:37:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-12-16 06:37:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-12-16 06:37:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-12-16 06:37:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-12-16 06:37:16,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-12-16 06:37:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 06:37:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 06:37:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 06:37:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 06:37:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-16 06:37:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-16 06:37:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-16 06:37:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-16 06:37:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-16 06:37:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-16 06:37:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-16 06:37:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-16 06:37:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-16 06:37:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-16 06:37:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-16 06:37:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-16 06:37:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2023-12-16 06:37:16,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2023-12-16 06:37:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:37:16,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:37:16,546 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:37:16,547 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:37:16,920 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L746: SUMMARY for call __CS_cs(); srcloc: null [2023-12-16 06:37:16,920 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2023-12-16 06:37:16,920 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-16 06:37:16,921 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-16 06:37:16,921 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2023-12-16 06:37:16,921 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-16 06:37:16,921 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2023-12-16 06:37:19,950 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:37:19,977 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:37:19,977 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 06:37:19,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:37:19 BoogieIcfgContainer [2023-12-16 06:37:19,977 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:37:19,979 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:37:19,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:37:19,981 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:37:19,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:37:15" (1/3) ... [2023-12-16 06:37:19,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2f0dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:37:19, skipping insertion in model container [2023-12-16 06:37:19,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:37:16" (2/3) ... [2023-12-16 06:37:19,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2f0dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:37:19, skipping insertion in model container [2023-12-16 06:37:19,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:37:19" (3/3) ... [2023-12-16 06:37:19,983 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_stateful-1.i [2023-12-16 06:37:19,994 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:37:19,994 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 06:37:20,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:37:20,030 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;@29dfce05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:37:20,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 06:37:20,033 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 109 states have (on average 1.5504587155963303) internal successors, (169), 110 states have internal predecessors, (169), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-16 06:37:20,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-16 06:37:20,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:37:20,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:37:20,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:37:20,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:37:20,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1924643995, now seen corresponding path program 1 times [2023-12-16 06:37:20,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:37:20,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353758931] [2023-12-16 06:37:20,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:20,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:37:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:37:20,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:20,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353758931] [2023-12-16 06:37:20,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353758931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:37:20,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:37:20,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 06:37:20,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492958173] [2023-12-16 06:37:20,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:37:20,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:37:20,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:20,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:37:20,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:37:20,390 INFO L87 Difference]: Start difference. First operand has 160 states, 109 states have (on average 1.5504587155963303) internal successors, (169), 110 states have internal predecessors, (169), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:37:20,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:37:20,526 INFO L93 Difference]: Finished difference Result 322 states and 542 transitions. [2023-12-16 06:37:20,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:37:20,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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) Word has length 31 [2023-12-16 06:37:20,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:37:20,534 INFO L225 Difference]: With dead ends: 322 [2023-12-16 06:37:20,535 INFO L226 Difference]: Without dead ends: 161 [2023-12-16 06:37:20,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:37:20,541 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 3 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:20,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 454 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:37:20,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-12-16 06:37:20,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 159. [2023-12-16 06:37:20,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 109 states have (on average 1.4036697247706422) internal successors, (153), 109 states have internal predecessors, (153), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-16 06:37:20,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 237 transitions. [2023-12-16 06:37:20,585 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 237 transitions. Word has length 31 [2023-12-16 06:37:20,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:37:20,585 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 237 transitions. [2023-12-16 06:37:20,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:37:20,585 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 237 transitions. [2023-12-16 06:37:20,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-16 06:37:20,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:37:20,588 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:37:20,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 06:37:20,588 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:37:20,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:37:20,589 INFO L85 PathProgramCache]: Analyzing trace with hash 883927435, now seen corresponding path program 1 times [2023-12-16 06:37:20,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:37:20,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222887737] [2023-12-16 06:37:20,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:20,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:37:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:20,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:37:20,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:20,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222887737] [2023-12-16 06:37:20,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222887737] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:37:20,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:37:20,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:37:20,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663923959] [2023-12-16 06:37:20,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:37:20,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:37:20,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:20,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:37:20,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:37:20,772 INFO L87 Difference]: Start difference. First operand 159 states and 237 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:37:20,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:37:20,827 INFO L93 Difference]: Finished difference Result 317 states and 474 transitions. [2023-12-16 06:37:20,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:37:20,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) Word has length 34 [2023-12-16 06:37:20,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:37:20,829 INFO L225 Difference]: With dead ends: 317 [2023-12-16 06:37:20,829 INFO L226 Difference]: Without dead ends: 160 [2023-12-16 06:37:20,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:37:20,831 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:20,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 454 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:37:20,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-12-16 06:37:20,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2023-12-16 06:37:20,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 110 states have (on average 1.4) internal successors, (154), 110 states have internal predecessors, (154), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-16 06:37:20,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 238 transitions. [2023-12-16 06:37:20,841 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 238 transitions. Word has length 34 [2023-12-16 06:37:20,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:37:20,841 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 238 transitions. [2023-12-16 06:37:20,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:37:20,841 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 238 transitions. [2023-12-16 06:37:20,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-16 06:37:20,843 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:37:20,843 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:37:20,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 06:37:20,843 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:37:20,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:37:20,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1135062502, now seen corresponding path program 1 times [2023-12-16 06:37:20,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:37:20,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586513713] [2023-12-16 06:37:20,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:20,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:37:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:21,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:37:21,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:21,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586513713] [2023-12-16 06:37:21,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586513713] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:37:21,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098959588] [2023-12-16 06:37:21,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:21,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:37:21,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:37:21,028 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 06:37:21,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 06:37:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:21,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 06:37:21,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:37:21,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:37:21,358 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:37:21,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:37:21,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098959588] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:37:21,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 06:37:21,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-12-16 06:37:21,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897005132] [2023-12-16 06:37:21,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 06:37:21,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:37:21,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:21,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:37:21,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:37:21,381 INFO L87 Difference]: Start difference. First operand 160 states and 238 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:37:21,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:37:21,443 INFO L93 Difference]: Finished difference Result 320 states and 478 transitions. [2023-12-16 06:37:21,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:37:21,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) Word has length 35 [2023-12-16 06:37:21,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:37:21,444 INFO L225 Difference]: With dead ends: 320 [2023-12-16 06:37:21,445 INFO L226 Difference]: Without dead ends: 162 [2023-12-16 06:37:21,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:37:21,446 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:21,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 454 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:37:21,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-12-16 06:37:21,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2023-12-16 06:37:21,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 112 states have (on average 1.3928571428571428) internal successors, (156), 112 states have internal predecessors, (156), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-16 06:37:21,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 240 transitions. [2023-12-16 06:37:21,455 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 240 transitions. Word has length 35 [2023-12-16 06:37:21,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:37:21,455 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 240 transitions. [2023-12-16 06:37:21,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:37:21,455 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 240 transitions. [2023-12-16 06:37:21,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-16 06:37:21,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:37:21,457 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:37:21,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 06:37:21,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:37:21,663 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:37:21,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:37:21,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1152945798, now seen corresponding path program 2 times [2023-12-16 06:37:21,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:37:21,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794547317] [2023-12-16 06:37:21,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:21,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:37:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:21,893 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 06:37:21,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:21,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794547317] [2023-12-16 06:37:21,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794547317] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:37:21,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572729176] [2023-12-16 06:37:21,894 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 06:37:21,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:37:21,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:37:21,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 06:37:21,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 06:37:22,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 06:37:22,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:37:22,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-16 06:37:22,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:37:22,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-12-16 06:37:22,322 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 06:37:22,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 06:37:22,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572729176] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:37:22,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 06:37:22,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3] total 8 [2023-12-16 06:37:22,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504296893] [2023-12-16 06:37:22,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:37:22,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:37:22,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:22,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:37:22,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:37:22,324 INFO L87 Difference]: Start difference. First operand 162 states and 240 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:37:24,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:37:24,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:37:24,998 INFO L93 Difference]: Finished difference Result 604 states and 922 transitions. [2023-12-16 06:37:24,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 06:37:24,998 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 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) Word has length 37 [2023-12-16 06:37:24,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:37:25,002 INFO L225 Difference]: With dead ends: 604 [2023-12-16 06:37:25,002 INFO L226 Difference]: Without dead ends: 409 [2023-12-16 06:37:25,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-16 06:37:25,003 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 549 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:25,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 1492 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 06:37:25,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-12-16 06:37:25,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2023-12-16 06:37:25,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 264 states have (on average 1.4545454545454546) internal successors, (384), 264 states have internal predecessors, (384), 123 states have call successors, (123), 21 states have call predecessors, (123), 21 states have return successors, (140), 123 states have call predecessors, (140), 123 states have call successors, (140) [2023-12-16 06:37:25,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 647 transitions. [2023-12-16 06:37:25,058 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 647 transitions. Word has length 37 [2023-12-16 06:37:25,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:37:25,059 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 647 transitions. [2023-12-16 06:37:25,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:37:25,059 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 647 transitions. [2023-12-16 06:37:25,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-16 06:37:25,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:37:25,063 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:37:25,074 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-16 06:37:25,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-12-16 06:37:25,270 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:37:25,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:37:25,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1022568785, now seen corresponding path program 1 times [2023-12-16 06:37:25,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:37:25,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716093161] [2023-12-16 06:37:25,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:25,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:37:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:25,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 06:37:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:25,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-16 06:37:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:25,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 06:37:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:25,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 06:37:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:25,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 06:37:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:25,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-16 06:37:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:25,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 06:37:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:25,589 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 06:37:25,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:25,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716093161] [2023-12-16 06:37:25,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716093161] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:37:25,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959236666] [2023-12-16 06:37:25,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:25,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:37:25,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:37:25,591 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 06:37:25,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 06:37:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:25,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 06:37:25,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:37:25,932 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 06:37:25,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:37:25,981 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 06:37:25,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959236666] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:37:25,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 06:37:25,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 4] total 9 [2023-12-16 06:37:25,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119224575] [2023-12-16 06:37:25,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 06:37:25,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 06:37:25,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:25,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 06:37:25,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:37:25,984 INFO L87 Difference]: Start difference. First operand 409 states and 647 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 06:37:30,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:37:32,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:37:32,151 INFO L93 Difference]: Finished difference Result 830 states and 1321 transitions. [2023-12-16 06:37:32,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 06:37:32,152 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 82 [2023-12-16 06:37:32,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:37:32,154 INFO L225 Difference]: With dead ends: 830 [2023-12-16 06:37:32,155 INFO L226 Difference]: Without dead ends: 429 [2023-12-16 06:37:32,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 170 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-16 06:37:32,157 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 72 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 122 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:32,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 817 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 429 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2023-12-16 06:37:32,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-12-16 06:37:32,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 419. [2023-12-16 06:37:32,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 272 states have (on average 1.4448529411764706) internal successors, (393), 274 states have internal predecessors, (393), 123 states have call successors, (123), 21 states have call predecessors, (123), 23 states have return successors, (146), 123 states have call predecessors, (146), 123 states have call successors, (146) [2023-12-16 06:37:32,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 662 transitions. [2023-12-16 06:37:32,188 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 662 transitions. Word has length 82 [2023-12-16 06:37:32,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:37:32,189 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 662 transitions. [2023-12-16 06:37:32,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 06:37:32,190 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 662 transitions. [2023-12-16 06:37:32,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 06:37:32,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:37:32,195 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:37:32,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 06:37:32,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:37:32,402 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:37:32,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:37:32,402 INFO L85 PathProgramCache]: Analyzing trace with hash 687377012, now seen corresponding path program 2 times [2023-12-16 06:37:32,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:37:32,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4677269] [2023-12-16 06:37:32,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:32,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:37:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:32,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 06:37:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:33,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-16 06:37:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:33,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 06:37:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:33,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 06:37:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:33,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 06:37:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:33,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-16 06:37:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:33,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 06:37:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:33,075 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-16 06:37:33,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:33,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4677269] [2023-12-16 06:37:33,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4677269] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:37:33,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:37:33,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 06:37:33,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479906783] [2023-12-16 06:37:33,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:37:33,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:37:33,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:33,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:37:33,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:37:33,077 INFO L87 Difference]: Start difference. First operand 419 states and 662 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 06:37:37,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:37:39,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:37:39,747 INFO L93 Difference]: Finished difference Result 885 states and 1391 transitions. [2023-12-16 06:37:39,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 06:37:39,748 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 88 [2023-12-16 06:37:39,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:37:39,751 INFO L225 Difference]: With dead ends: 885 [2023-12-16 06:37:39,751 INFO L226 Difference]: Without dead ends: 563 [2023-12-16 06:37:39,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-16 06:37:39,753 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 324 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 217 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:39,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 902 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 542 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2023-12-16 06:37:39,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-12-16 06:37:39,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 527. [2023-12-16 06:37:39,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 336 states have (on average 1.3928571428571428) internal successors, (468), 340 states have internal predecessors, (468), 159 states have call successors, (159), 28 states have call predecessors, (159), 31 states have return successors, (189), 158 states have call predecessors, (189), 159 states have call successors, (189) [2023-12-16 06:37:39,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 816 transitions. [2023-12-16 06:37:39,785 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 816 transitions. Word has length 88 [2023-12-16 06:37:39,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:37:39,785 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 816 transitions. [2023-12-16 06:37:39,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 06:37:39,785 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 816 transitions. [2023-12-16 06:37:39,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 06:37:39,787 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:37:39,787 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:37:39,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 06:37:39,787 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:37:39,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:37:39,787 INFO L85 PathProgramCache]: Analyzing trace with hash 340002696, now seen corresponding path program 1 times [2023-12-16 06:37:39,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:37:39,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961097008] [2023-12-16 06:37:39,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:39,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:37:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:40,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 06:37:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:40,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-16 06:37:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:40,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 06:37:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:40,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 06:37:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:40,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 06:37:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:40,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-16 06:37:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:40,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 06:37:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:40,800 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-16 06:37:40,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:40,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961097008] [2023-12-16 06:37:40,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961097008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:37:40,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:37:40,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 06:37:40,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335896305] [2023-12-16 06:37:40,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:37:40,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:37:40,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:40,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:37:40,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:37:40,802 INFO L87 Difference]: Start difference. First operand 527 states and 816 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 06:37:46,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:37:48,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:37:49,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:37:49,679 INFO L93 Difference]: Finished difference Result 847 states and 1307 transitions. [2023-12-16 06:37:49,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 06:37:49,680 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 88 [2023-12-16 06:37:49,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:37:49,682 INFO L225 Difference]: With dead ends: 847 [2023-12-16 06:37:49,682 INFO L226 Difference]: Without dead ends: 520 [2023-12-16 06:37:49,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:37:49,684 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 364 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 259 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:49,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 900 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 723 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2023-12-16 06:37:49,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-12-16 06:37:49,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 484. [2023-12-16 06:37:49,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 313 states have (on average 1.4089456869009584) internal successors, (441), 317 states have internal predecessors, (441), 139 states have call successors, (139), 26 states have call predecessors, (139), 31 states have return successors, (169), 140 states have call predecessors, (169), 139 states have call successors, (169) [2023-12-16 06:37:49,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 749 transitions. [2023-12-16 06:37:49,717 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 749 transitions. Word has length 88 [2023-12-16 06:37:49,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:37:49,717 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 749 transitions. [2023-12-16 06:37:49,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 06:37:49,718 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 749 transitions. [2023-12-16 06:37:49,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-16 06:37:49,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:37:49,723 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:37:49,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 06:37:49,723 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:37:49,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:37:49,724 INFO L85 PathProgramCache]: Analyzing trace with hash -489189268, now seen corresponding path program 1 times [2023-12-16 06:37:49,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:37:49,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979801253] [2023-12-16 06:37:49,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:49,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:37:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:50,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 06:37:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:50,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 06:37:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:50,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 06:37:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:50,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 06:37:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:50,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 06:37:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:50,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-16 06:37:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:50,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 06:37:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:50,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 06:37:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:50,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 06:37:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:50,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 06:37:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:50,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 06:37:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:50,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 06:37:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:50,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 06:37:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:50,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 06:37:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:50,515 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-12-16 06:37:50,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:50,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979801253] [2023-12-16 06:37:50,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979801253] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:37:50,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029962824] [2023-12-16 06:37:50,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:50,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:37:50,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:37:50,525 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 06:37:50,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 06:37:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:50,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-16 06:37:50,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:37:50,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-16 06:37:51,275 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-12-16 06:37:51,275 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:37:51,739 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-12-16 06:37:51,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029962824] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:37:51,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 06:37:51,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 28 [2023-12-16 06:37:51,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844227576] [2023-12-16 06:37:51,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 06:37:51,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-16 06:37:51,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:51,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-16 06:37:51,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2023-12-16 06:37:51,742 INFO L87 Difference]: Start difference. First operand 484 states and 749 transitions. Second operand has 28 states, 26 states have (on average 4.384615384615385) internal successors, (114), 24 states have internal predecessors, (114), 11 states have call successors, (37), 11 states have call predecessors, (37), 9 states have return successors, (37), 7 states have call predecessors, (37), 11 states have call successors, (37) [2023-12-16 06:37:53,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:37:57,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:37:59,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:38:04,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:38:04,798 INFO L93 Difference]: Finished difference Result 1431 states and 2210 transitions. [2023-12-16 06:38:04,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-16 06:38:04,799 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 4.384615384615385) internal successors, (114), 24 states have internal predecessors, (114), 11 states have call successors, (37), 11 states have call predecessors, (37), 9 states have return successors, (37), 7 states have call predecessors, (37), 11 states have call successors, (37) Word has length 125 [2023-12-16 06:38:04,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:38:04,808 INFO L225 Difference]: With dead ends: 1431 [2023-12-16 06:38:04,808 INFO L226 Difference]: Without dead ends: 919 [2023-12-16 06:38:04,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1435 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1044, Invalid=3926, Unknown=0, NotChecked=0, Total=4970 [2023-12-16 06:38:04,812 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 1941 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 2064 mSolverCounterSat, 1312 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1952 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 3377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1312 IncrementalHoareTripleChecker+Valid, 2064 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:38:04,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1952 Valid, 1914 Invalid, 3377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1312 Valid, 2064 Invalid, 1 Unknown, 0 Unchecked, 10.4s Time] [2023-12-16 06:38:04,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-12-16 06:38:04,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 776. [2023-12-16 06:38:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 498 states have (on average 1.4357429718875503) internal successors, (715), 512 states have internal predecessors, (715), 220 states have call successors, (220), 46 states have call predecessors, (220), 57 states have return successors, (282), 217 states have call predecessors, (282), 220 states have call successors, (282) [2023-12-16 06:38:04,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1217 transitions. [2023-12-16 06:38:04,884 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1217 transitions. Word has length 125 [2023-12-16 06:38:04,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:38:04,885 INFO L495 AbstractCegarLoop]: Abstraction has 776 states and 1217 transitions. [2023-12-16 06:38:04,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 4.384615384615385) internal successors, (114), 24 states have internal predecessors, (114), 11 states have call successors, (37), 11 states have call predecessors, (37), 9 states have return successors, (37), 7 states have call predecessors, (37), 11 states have call successors, (37) [2023-12-16 06:38:04,885 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1217 transitions. [2023-12-16 06:38:04,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-16 06:38:04,887 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:38:04,887 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:38:04,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-16 06:38:05,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:38:05,100 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:38:05,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:38:05,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1730320170, now seen corresponding path program 1 times [2023-12-16 06:38:05,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:38:05,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047116906] [2023-12-16 06:38:05,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:38:05,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:38:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:38:06,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-16 06:38:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:38:06,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 06:38:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:38:06,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 06:38:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:38:06,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 06:38:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:38:06,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 06:38:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:38:06,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-16 06:38:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:38:06,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 06:38:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:38:06,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 06:38:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:38:06,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 06:38:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:38:07,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 06:38:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:38:07,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 06:38:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:38:07,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 06:38:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:38:07,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 06:38:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:38:07,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 06:38:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:38:07,213 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-12-16 06:38:07,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:38:07,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047116906] [2023-12-16 06:38:07,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047116906] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:38:07,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857835137] [2023-12-16 06:38:07,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:38:07,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:38:07,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:38:07,229 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 06:38:07,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 06:38:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:38:07,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 1465 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-16 06:38:07,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:38:07,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-16 06:38:21,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 06:38:21,502 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 06:38:21,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 48 [2023-12-16 06:38:22,677 INFO L349 Elim1Store]: treesize reduction 64, result has 54.9 percent of original size [2023-12-16 06:38:22,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 104 Received shutdown request... [2023-12-16 06:38:23,531 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:38:23,542 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:38:24,124 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 06:38:24,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 06:38:24,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:38:24,325 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 126 with TraceHistMax 8,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 29 known predicates. [2023-12-16 06:38:24,329 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2023-12-16 06:38:24,330 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:38:24,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:38:24 BoogieIcfgContainer [2023-12-16 06:38:24,332 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:38:24,332 INFO L158 Benchmark]: Toolchain (without parser) took 68815.36ms. Allocated memory was 170.9MB in the beginning and 291.5MB in the end (delta: 120.6MB). Free memory was 125.1MB in the beginning and 134.9MB in the end (delta: -9.8MB). Peak memory consumption was 112.0MB. Max. memory is 8.0GB. [2023-12-16 06:38:24,332 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 170.9MB. Free memory is still 129.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:38:24,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.84ms. Allocated memory is still 170.9MB. Free memory was 124.8MB in the beginning and 98.9MB in the end (delta: 25.9MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-16 06:38:24,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.02ms. Allocated memory is still 170.9MB. Free memory was 98.9MB in the beginning and 93.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 06:38:24,333 INFO L158 Benchmark]: Boogie Preprocessor took 137.70ms. Allocated memory is still 170.9MB. Free memory was 93.7MB in the beginning and 143.5MB in the end (delta: -49.8MB). Peak memory consumption was 14.1MB. Max. memory is 8.0GB. [2023-12-16 06:38:24,333 INFO L158 Benchmark]: RCFGBuilder took 3717.84ms. Allocated memory is still 170.9MB. Free memory was 143.5MB in the beginning and 80.8MB in the end (delta: 62.7MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2023-12-16 06:38:24,333 INFO L158 Benchmark]: TraceAbstraction took 64352.79ms. Allocated memory was 170.9MB in the beginning and 291.5MB in the end (delta: 120.6MB). Free memory was 80.3MB in the beginning and 134.9MB in the end (delta: -54.7MB). Peak memory consumption was 66.4MB. Max. memory is 8.0GB. [2023-12-16 06:38:24,334 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 170.9MB. Free memory is still 129.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 529.84ms. Allocated memory is still 170.9MB. Free memory was 124.8MB in the beginning and 98.9MB in the end (delta: 25.9MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 72.02ms. Allocated memory is still 170.9MB. Free memory was 98.9MB in the beginning and 93.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 137.70ms. Allocated memory is still 170.9MB. Free memory was 93.7MB in the beginning and 143.5MB in the end (delta: -49.8MB). Peak memory consumption was 14.1MB. Max. memory is 8.0GB. * RCFGBuilder took 3717.84ms. Allocated memory is still 170.9MB. Free memory was 143.5MB in the beginning and 80.8MB in the end (delta: 62.7MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * TraceAbstraction took 64352.79ms. Allocated memory was 170.9MB in the beginning and 291.5MB in the end (delta: 120.6MB). Free memory was 80.3MB in the beginning and 134.9MB in the end (delta: -54.7MB). Peak memory consumption was 66.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 536]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 536). Cancelled while NwaCegarLoop was analyzing trace of length 126 with TraceHistMax 8,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 29 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 160 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 64.3s, OverallIterations: 9, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 37.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 3294 SdHoareTripleChecker+Valid, 34.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3253 mSDsluCounter, 7387 SdHoareTripleChecker+Invalid, 33.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5397 mSDsCounter, 1993 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4105 IncrementalHoareTripleChecker+Invalid, 6102 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1993 mSolverCounterUnsat, 1990 mSDtfsCounter, 4105 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 696 GetRequests, 576 SyntacticMatches, 3 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1505 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=776occurred in iteration=8, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 227 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 799 NumberOfCodeBlocks, 793 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1026 ConstructedInterpolants, 0 QuantifiedInterpolants, 3204 SizeOfPredicates, 13 NumberOfNonLiveVariables, 3425 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 15 InterpolantComputations, 5 PerfectInterpolantSequences, 603/676 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown