/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-pthread/cs_fib-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 23:45:50,529 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 23:45:50,596 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 23:45:50,599 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 23:45:50,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 23:45:50,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 23:45:50,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 23:45:50,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 23:45:50,634 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 23:45:50,634 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 23:45:50,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 23:45:50,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 23:45:50,635 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 23:45:50,636 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 23:45:50,636 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 23:45:50,636 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 23:45:50,636 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 23:45:50,637 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 23:45:50,637 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 23:45:50,637 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 23:45:50,637 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 23:45:50,641 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 23:45:50,641 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 23:45:50,641 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 23:45:50,642 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 23:45:50,642 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 23:45:50,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 23:45:50,642 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 23:45:50,642 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 23:45:50,642 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 23:45:50,643 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 23:45:50,643 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 23:45:50,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:45:50,643 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 23:45:50,643 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 23:45:50,643 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 23:45:50,644 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 23:45:50,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 23:45:50,644 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 23:45:50,644 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 23:45:50,644 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 23:45:50,645 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 23:45:50,645 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 23:45:50,645 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 23:45:50,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 23:45:50,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 23:45:50,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 23:45:50,826 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 23:45:50,826 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 23:45:50,826 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_fib-2.i [2023-12-15 23:45:52,027 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 23:45:52,242 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 23:45:52,242 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_fib-2.i [2023-12-15 23:45:52,266 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c96a04853/06a235dbc289493daf186239e4cde52b/FLAG14b99a1b3 [2023-12-15 23:45:52,276 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c96a04853/06a235dbc289493daf186239e4cde52b [2023-12-15 23:45:52,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 23:45:52,279 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 23:45:52,280 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 23:45:52,280 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 23:45:52,295 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 23:45:52,295 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:45:52" (1/1) ... [2023-12-15 23:45:52,296 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@527a0248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:52, skipping insertion in model container [2023-12-15 23:45:52,296 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:45:52" (1/1) ... [2023-12-15 23:45:52,342 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 23:45:52,615 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_fib-2.i[23457,23470] [2023-12-15 23:45:52,721 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:45:52,748 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 23:45:52,776 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_fib-2.i[23457,23470] [2023-12-15 23:45:52,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:45:52,885 INFO L206 MainTranslator]: Completed translation [2023-12-15 23:45:52,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:52 WrapperNode [2023-12-15 23:45:52,886 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 23:45:52,887 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 23:45:52,887 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 23:45:52,887 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 23:45:52,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:52" (1/1) ... [2023-12-15 23:45:52,920 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:52" (1/1) ... [2023-12-15 23:45:52,954 INFO L138 Inliner]: procedures = 144, calls = 356, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 676 [2023-12-15 23:45:52,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 23:45:52,955 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 23:45:52,955 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 23:45:52,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 23:45:52,963 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:52" (1/1) ... [2023-12-15 23:45:52,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:52" (1/1) ... [2023-12-15 23:45:52,970 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:52" (1/1) ... [2023-12-15 23:45:53,012 INFO L175 MemorySlicer]: Split 225 memory accesses to 14 slices as follows [2, 2, 8, 8, 36, 31, 22, 22, 10, 31, 31, 11, 0, 11]. 16 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [2, 0, 3, 3, 0, 0, 6, 6, 6, 0, 0, 0, 0, 0]. The 63 writes are split as follows [0, 2, 2, 2, 21, 16, 7, 7, 2, 1, 1, 1, 0, 1]. [2023-12-15 23:45:53,012 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:52" (1/1) ... [2023-12-15 23:45:53,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:52" (1/1) ... [2023-12-15 23:45:53,037 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:52" (1/1) ... [2023-12-15 23:45:53,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:52" (1/1) ... [2023-12-15 23:45:53,052 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:52" (1/1) ... [2023-12-15 23:45:53,056 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:52" (1/1) ... [2023-12-15 23:45:53,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 23:45:53,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 23:45:53,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 23:45:53,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 23:45:53,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:52" (1/1) ... [2023-12-15 23:45:53,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:45:53,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:45:53,099 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 23:45:53,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 23:45:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-15 23:45:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-15 23:45:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-15 23:45:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-15 23:45:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-15 23:45:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-15 23:45:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-15 23:45:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-15 23:45:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-15 23:45:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-15 23:45:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-15 23:45:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-15 23:45:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-15 23:45:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-15 23:45:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-15 23:45:53,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-15 23:45:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-15 23:45:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-15 23:45:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-15 23:45:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-15 23:45:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-15 23:45:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-15 23:45:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-15 23:45:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-15 23:45:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-15 23:45:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-15 23:45:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-15 23:45:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-15 23:45:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-15 23:45:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-15 23:45:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 23:45:53,156 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 23:45:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 23:45:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-15 23:45:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-15 23:45:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-15 23:45:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-15 23:45:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-12-15 23:45:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-12-15 23:45:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-12-15 23:45:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-12-15 23:45:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-12-15 23:45:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-12-15 23:45:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-12-15 23:45:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-12-15 23:45:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-12-15 23:45:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-12-15 23:45:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-12-15 23:45:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-12-15 23:45:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-12-15 23:45:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-15 23:45:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-15 23:45:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-15 23:45:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-12-15 23:45:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-12-15 23:45:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-12-15 23:45:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-12-15 23:45:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-12-15 23:45:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-12-15 23:45:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-12-15 23:45:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-12-15 23:45:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-12-15 23:45:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-12-15 23:45:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-12-15 23:45:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-15 23:45:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-15 23:45:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-15 23:45:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-12-15 23:45:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-12-15 23:45:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 23:45:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 23:45:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 23:45:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 23:45:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-15 23:45:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-15 23:45:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-15 23:45:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-15 23:45:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-15 23:45:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-15 23:45:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-15 23:45:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-15 23:45:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-15 23:45:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-15 23:45:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 23:45:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 23:45:53,364 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 23:45:53,366 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 23:45:53,609 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-12-15 23:45:53,609 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-15 23:45:53,610 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-12-15 23:45:53,610 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-15 23:45:53,610 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L749: SUMMARY for call __CS_cs(); srcloc: null [2023-12-15 23:45:53,610 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-12-15 23:45:53,610 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-15 23:45:57,916 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 23:45:57,941 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 23:45:57,941 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-15 23:45:57,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:45:57 BoogieIcfgContainer [2023-12-15 23:45:57,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 23:45:57,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 23:45:57,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 23:45:57,945 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 23:45:57,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:45:52" (1/3) ... [2023-12-15 23:45:57,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4135d66d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:45:57, skipping insertion in model container [2023-12-15 23:45:57,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:52" (2/3) ... [2023-12-15 23:45:57,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4135d66d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:45:57, skipping insertion in model container [2023-12-15 23:45:57,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:45:57" (3/3) ... [2023-12-15 23:45:57,947 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_fib-2.i [2023-12-15 23:45:57,958 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 23:45:57,958 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 23:45:57,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 23:45:57,998 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;@39ee48a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 23:45:57,998 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 23:45:58,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 100 states have (on average 1.37) internal successors, (137), 101 states have internal predecessors, (137), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-15 23:45:58,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-12-15 23:45:58,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:45:58,019 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:45:58,019 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:45:58,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:45:58,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1200545891, now seen corresponding path program 1 times [2023-12-15 23:45:58,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:45:58,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374387216] [2023-12-15 23:45:58,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:45:58,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:45:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 23:45:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:45:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 23:45:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-15 23:45:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 23:45:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-15 23:45:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 23:45:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 23:45:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 23:45:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-15 23:45:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 23:45:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 23:45:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 23:45:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 23:45:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 23:45:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 23:45:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:45:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-15 23:45:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 23:45:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-15 23:45:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-15 23:45:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-15 23:45:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-15 23:45:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-15 23:45:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-15 23:45:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-15 23:45:58,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-15 23:45:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-15 23:45:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-15 23:45:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-15 23:45:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-15 23:45:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-15 23:45:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-15 23:45:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-15 23:45:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-15 23:45:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-15 23:45:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-15 23:45:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-15 23:45:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-15 23:45:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-15 23:45:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:45:58,930 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-15 23:45:58,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:45:58,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374387216] [2023-12-15 23:45:58,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374387216] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:45:58,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:45:58,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:45:58,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275512148] [2023-12-15 23:45:58,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:45:58,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:45:58,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:45:58,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:45:58,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:45:58,962 INFO L87 Difference]: Start difference. First operand has 173 states, 100 states have (on average 1.37) internal successors, (137), 101 states have internal predecessors, (137), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-15 23:46:03,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-15 23:46:03,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:46:03,093 INFO L93 Difference]: Finished difference Result 348 states and 608 transitions. [2023-12-15 23:46:03,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:46:03,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 253 [2023-12-15 23:46:03,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:46:03,102 INFO L225 Difference]: With dead ends: 348 [2023-12-15 23:46:03,103 INFO L226 Difference]: Without dead ends: 174 [2023-12-15 23:46:03,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:46:03,110 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 3 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:46:03,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 508 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-12-15 23:46:03,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-12-15 23:46:03,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 172. [2023-12-15 23:46:03,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 100 states have (on average 1.31) internal successors, (131), 101 states have internal predecessors, (131), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-15 23:46:03,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 262 transitions. [2023-12-15 23:46:03,153 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 262 transitions. Word has length 253 [2023-12-15 23:46:03,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:46:03,153 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 262 transitions. [2023-12-15 23:46:03,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-15 23:46:03,154 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 262 transitions. [2023-12-15 23:46:03,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-15 23:46:03,158 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:46:03,158 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:46:03,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 23:46:03,159 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:46:03,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:46:03,159 INFO L85 PathProgramCache]: Analyzing trace with hash 874410286, now seen corresponding path program 1 times [2023-12-15 23:46:03,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:46:03,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10057529] [2023-12-15 23:46:03,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:46:03,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:46:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 23:46:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 23:46:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-15 23:46:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-15 23:46:03,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:46:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 23:46:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 23:46:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-15 23:46:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 23:46:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 23:46:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 23:46:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 23:46:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 23:46:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 23:46:03,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 23:46:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 23:46:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 23:46:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-15 23:46:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-15 23:46:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-15 23:46:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-15 23:46:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-15 23:46:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-15 23:46:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-15 23:46:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-15 23:46:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-15 23:46:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-15 23:46:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-15 23:46:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-15 23:46:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-15 23:46:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-15 23:46:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-15 23:46:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-15 23:46:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-15 23:46:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-15 23:46:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-15 23:46:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-15 23:46:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-15 23:46:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-15 23:46:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-15 23:46:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:03,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3121 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-15 23:46:03,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:46:03,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10057529] [2023-12-15 23:46:03,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10057529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:46:03,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:46:03,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:46:03,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876260435] [2023-12-15 23:46:03,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:46:03,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:46:03,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:46:03,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:46:03,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:46:03,700 INFO L87 Difference]: Start difference. First operand 172 states and 262 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-15 23:46:03,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:46:03,751 INFO L93 Difference]: Finished difference Result 343 states and 524 transitions. [2023-12-15 23:46:03,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:46:03,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 256 [2023-12-15 23:46:03,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:46:03,761 INFO L225 Difference]: With dead ends: 343 [2023-12-15 23:46:03,761 INFO L226 Difference]: Without dead ends: 173 [2023-12-15 23:46:03,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:46:03,765 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 0 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:46:03,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 508 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:46:03,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-15 23:46:03,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2023-12-15 23:46:03,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 101 states have (on average 1.306930693069307) internal successors, (132), 102 states have internal predecessors, (132), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-15 23:46:03,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 263 transitions. [2023-12-15 23:46:03,790 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 263 transitions. Word has length 256 [2023-12-15 23:46:03,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:46:03,790 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 263 transitions. [2023-12-15 23:46:03,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-15 23:46:03,790 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 263 transitions. [2023-12-15 23:46:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-12-15 23:46:03,793 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:46:03,793 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:46:03,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 23:46:03,793 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:46:03,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:46:03,794 INFO L85 PathProgramCache]: Analyzing trace with hash -524137494, now seen corresponding path program 1 times [2023-12-15 23:46:03,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:46:03,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565060251] [2023-12-15 23:46:03,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:46:03,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:46:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 23:46:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 23:46:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 23:46:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 23:46:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 23:46:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 23:46:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 23:46:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 23:46:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 23:46:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 23:46:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 23:46:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 23:46:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 23:46:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 23:46:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 23:46:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-15 23:46:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-15 23:46:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-15 23:46:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-15 23:46:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-15 23:46:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-15 23:46:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-15 23:46:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-15 23:46:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-15 23:46:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-15 23:46:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-15 23:46:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-15 23:46:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-15 23:46:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-15 23:46:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-15 23:46:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-15 23:46:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-15 23:46:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-15 23:46:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-15 23:46:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-15 23:46:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-15 23:46:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-15 23:46:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-15 23:46:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-15 23:46:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-15 23:46:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-15 23:46:04,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:46:04,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565060251] [2023-12-15 23:46:04,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565060251] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:46:04,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503548160] [2023-12-15 23:46:04,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:46:04,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:46:04,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:46:04,312 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 23:46:04,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 23:46:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:04,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 23:46:04,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:46:04,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-15 23:46:04,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 23:46:05,061 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-15 23:46:05,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503548160] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 23:46:05,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 23:46:05,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-12-15 23:46:05,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164850343] [2023-12-15 23:46:05,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 23:46:05,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:46:05,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:46:05,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:46:05,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:46:05,067 INFO L87 Difference]: Start difference. First operand 173 states and 263 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2023-12-15 23:46:05,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:46:05,152 INFO L93 Difference]: Finished difference Result 346 states and 528 transitions. [2023-12-15 23:46:05,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:46:05,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 257 [2023-12-15 23:46:05,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:46:05,156 INFO L225 Difference]: With dead ends: 346 [2023-12-15 23:46:05,156 INFO L226 Difference]: Without dead ends: 175 [2023-12-15 23:46:05,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 591 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:46:05,158 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 0 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:46:05,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 761 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:46:05,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-12-15 23:46:05,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2023-12-15 23:46:05,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 104 states have internal predecessors, (134), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-15 23:46:05,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 265 transitions. [2023-12-15 23:46:05,174 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 265 transitions. Word has length 257 [2023-12-15 23:46:05,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:46:05,174 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 265 transitions. [2023-12-15 23:46:05,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2023-12-15 23:46:05,175 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 265 transitions. [2023-12-15 23:46:05,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-15 23:46:05,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:46:05,182 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:46:05,200 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 23:46:05,391 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 [2023-12-15 23:46:05,391 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:46:05,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:46:05,392 INFO L85 PathProgramCache]: Analyzing trace with hash -609098646, now seen corresponding path program 2 times [2023-12-15 23:46:05,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:46:05,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017648539] [2023-12-15 23:46:05,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:46:05,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:46:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:46:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 23:46:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-15 23:46:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 23:46:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-15 23:46:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 23:46:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 23:46:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 23:46:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-15 23:46:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 23:46:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 23:46:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 23:46:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 23:46:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 23:46:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 23:46:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:46:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-15 23:46:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 23:46:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-15 23:46:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-15 23:46:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-15 23:46:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-15 23:46:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-15 23:46:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-15 23:46:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-15 23:46:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-15 23:46:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-15 23:46:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-15 23:46:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-15 23:46:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-15 23:46:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-15 23:46:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-15 23:46:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-15 23:46:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-15 23:46:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-15 23:46:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-15 23:46:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-15 23:46:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-15 23:46:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-15 23:46:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-15 23:46:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:05,796 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3126 trivial. 0 not checked. [2023-12-15 23:46:05,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:46:05,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017648539] [2023-12-15 23:46:05,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017648539] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:46:05,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539342150] [2023-12-15 23:46:05,796 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-15 23:46:05,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:46:05,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:46:05,818 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 23:46:05,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 23:46:06,282 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-15 23:46:06,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-15 23:46:06,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-15 23:46:06,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:46:06,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-12-15 23:46:06,434 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3127 trivial. 0 not checked. [2023-12-15 23:46:06,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 23:46:06,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539342150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:46:06,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 23:46:06,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-15 23:46:06,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361223278] [2023-12-15 23:46:06,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:46:06,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 23:46:06,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:46:06,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 23:46:06,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:46:06,436 INFO L87 Difference]: Start difference. First operand 175 states and 265 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-15 23:46:10,466 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 [] [2023-12-15 23:46:10,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:46:10,857 INFO L93 Difference]: Finished difference Result 501 states and 767 transitions. [2023-12-15 23:46:10,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 23:46:10,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 259 [2023-12-15 23:46:10,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:46:10,861 INFO L225 Difference]: With dead ends: 501 [2023-12-15 23:46:10,861 INFO L226 Difference]: Without dead ends: 339 [2023-12-15 23:46:10,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:46:10,862 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 251 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:46:10,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 640 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2023-12-15 23:46:10,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-12-15 23:46:10,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 175. [2023-12-15 23:46:10,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 103 states have (on average 1.2912621359223302) internal successors, (133), 104 states have internal predecessors, (133), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-15 23:46:10,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 264 transitions. [2023-12-15 23:46:10,900 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 264 transitions. Word has length 259 [2023-12-15 23:46:10,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:46:10,900 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 264 transitions. [2023-12-15 23:46:10,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-15 23:46:10,900 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 264 transitions. [2023-12-15 23:46:10,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-12-15 23:46:10,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:46:10,903 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:46:10,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 23:46:11,109 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 [2023-12-15 23:46:11,110 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:46:11,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:46:11,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1409282534, now seen corresponding path program 1 times [2023-12-15 23:46:11,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:46:11,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916018943] [2023-12-15 23:46:11,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:46:11,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:46:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 23:46:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 23:46:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:46:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 23:46:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-15 23:46:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-15 23:46:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 23:46:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 23:46:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 23:46:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 23:46:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 23:46:11,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 23:46:11,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 23:46:11,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 23:46:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 23:46:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-15 23:46:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-15 23:46:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-15 23:46:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-15 23:46:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-15 23:46:11,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-15 23:46:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-15 23:46:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-15 23:46:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-15 23:46:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-15 23:46:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-15 23:46:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-15 23:46:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-15 23:46:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-15 23:46:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-15 23:46:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-15 23:46:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-15 23:46:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-15 23:46:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-15 23:46:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-15 23:46:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-15 23:46:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-15 23:46:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-15 23:46:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-15 23:46:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-15 23:46:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-15 23:46:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-15 23:46:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-15 23:46:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3287 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3286 trivial. 0 not checked. [2023-12-15 23:46:11,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:46:11,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916018943] [2023-12-15 23:46:11,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916018943] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:46:11,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656746097] [2023-12-15 23:46:11,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:46:11,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:46:11,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:46:11,738 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 23:46:11,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 23:46:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:12,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 1535 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 23:46:12,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:46:12,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3287 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3286 trivial. 0 not checked. [2023-12-15 23:46:12,382 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 23:46:12,476 INFO L134 CoverageAnalysis]: Checked inductivity of 3287 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3286 trivial. 0 not checked. [2023-12-15 23:46:12,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656746097] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 23:46:12,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 23:46:12,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 4] total 9 [2023-12-15 23:46:12,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361115550] [2023-12-15 23:46:12,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 23:46:12,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:46:12,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:46:12,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:46:12,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:46:12,479 INFO L87 Difference]: Start difference. First operand 175 states and 264 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 7 states have internal predecessors, (93), 2 states have call successors, (89), 4 states have call predecessors, (89), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2023-12-15 23:46:16,535 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 [] [2023-12-15 23:46:20,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-15 23:46:24,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-15 23:46:28,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-15 23:46:32,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-15 23:46:36,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-15 23:46:40,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-15 23:46:41,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:46:41,439 INFO L93 Difference]: Finished difference Result 360 states and 542 transitions. [2023-12-15 23:46:41,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 23:46:41,440 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 7 states have internal predecessors, (93), 2 states have call successors, (89), 4 states have call predecessors, (89), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) Word has length 278 [2023-12-15 23:46:41,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:46:41,441 INFO L225 Difference]: With dead ends: 360 [2023-12-15 23:46:41,441 INFO L226 Difference]: Without dead ends: 193 [2023-12-15 23:46:41,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 636 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:46:41,442 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 24 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 68 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:46:41,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 919 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 468 Invalid, 7 Unknown, 0 Unchecked, 28.9s Time] [2023-12-15 23:46:41,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-12-15 23:46:41,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2023-12-15 23:46:41,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 122 states have internal predecessors, (154), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-15 23:46:41,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 285 transitions. [2023-12-15 23:46:41,453 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 285 transitions. Word has length 278 [2023-12-15 23:46:41,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:46:41,453 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 285 transitions. [2023-12-15 23:46:41,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 7 states have internal predecessors, (93), 2 states have call successors, (89), 4 states have call predecessors, (89), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2023-12-15 23:46:41,454 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 285 transitions. [2023-12-15 23:46:41,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2023-12-15 23:46:41,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:46:41,455 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 12, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:46:41,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-15 23:46:41,663 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 [2023-12-15 23:46:41,664 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:46:41,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:46:41,664 INFO L85 PathProgramCache]: Analyzing trace with hash 449521625, now seen corresponding path program 1 times [2023-12-15 23:46:41,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:46:41,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591628936] [2023-12-15 23:46:41,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:46:41,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:46:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 23:46:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 23:46:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:46:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 23:46:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 23:46:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-15 23:46:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 23:46:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 23:46:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 23:46:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 23:46:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 23:46:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 23:46:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:46:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-15 23:46:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 23:46:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-15 23:46:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-15 23:46:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-15 23:46:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-15 23:46:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-15 23:46:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-15 23:46:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-15 23:46:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-15 23:46:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-15 23:46:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-15 23:46:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-15 23:46:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-15 23:46:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-15 23:46:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-15 23:46:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-15 23:46:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-15 23:46:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-15 23:46:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-15 23:46:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-15 23:46:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-15 23:46:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-15 23:46:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-15 23:46:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-15 23:46:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-15 23:46:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-15 23:46:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-15 23:46:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-15 23:46:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-15 23:46:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:42,444 INFO L134 CoverageAnalysis]: Checked inductivity of 3416 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 3304 trivial. 0 not checked. [2023-12-15 23:46:42,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:46:42,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591628936] [2023-12-15 23:46:42,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591628936] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:46:42,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519047674] [2023-12-15 23:46:42,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:46:42,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:46:42,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:46:42,462 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 23:46:42,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 23:46:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:46:43,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 1904 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 23:46:43,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:46:43,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3416 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 3304 trivial. 0 not checked. [2023-12-15 23:46:43,201 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 23:46:43,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3416 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 3304 trivial. 0 not checked. [2023-12-15 23:46:43,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519047674] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 23:46:43,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 23:46:43,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 7] total 11 [2023-12-15 23:46:43,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713157811] [2023-12-15 23:46:43,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 23:46:43,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 23:46:43,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:46:43,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 23:46:43,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:46:43,328 INFO L87 Difference]: Start difference. First operand 193 states and 285 transitions. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 9 states have internal predecessors, (103), 2 states have call successors, (89), 4 states have call predecessors, (89), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2023-12-15 23:46:47,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-15 23:46:51,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-15 23:46:55,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-15 23:46:59,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-15 23:47:03,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-15 23:47:07,014 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 23:47:07,032 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 23:47:07,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-15 23:47:08,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 23:47:08,249 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-15 23:47:08,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 667 SyntacticMatches, 4 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:47:08,256 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:47:08,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 12 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 6 Unknown, 0 Unchecked, 24.1s Time] [2023-12-15 23:47:08,258 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 23:47:08,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 23:47:08,258 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-15 23:47:08,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-15 23:47:08,275 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-12-15 23:47:08,277 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 23:47:08,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:47:08 BoogieIcfgContainer [2023-12-15 23:47:08,279 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 23:47:08,279 INFO L158 Benchmark]: Toolchain (without parser) took 76000.80ms. Allocated memory was 255.9MB in the beginning and 482.3MB in the end (delta: 226.5MB). Free memory was 189.1MB in the beginning and 186.6MB in the end (delta: 2.4MB). Peak memory consumption was 230.1MB. Max. memory is 8.0GB. [2023-12-15 23:47:08,280 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory was 208.5MB in the beginning and 208.4MB in the end (delta: 138.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 23:47:08,280 INFO L158 Benchmark]: CACSL2BoogieTranslator took 606.40ms. Allocated memory was 255.9MB in the beginning and 307.2MB in the end (delta: 51.4MB). Free memory was 188.8MB in the beginning and 258.3MB in the end (delta: -69.5MB). Peak memory consumption was 17.2MB. Max. memory is 8.0GB. [2023-12-15 23:47:08,280 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.75ms. Allocated memory is still 307.2MB. Free memory was 258.3MB in the beginning and 252.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-15 23:47:08,291 INFO L158 Benchmark]: Boogie Preprocessor took 107.20ms. Allocated memory is still 307.2MB. Free memory was 252.0MB in the beginning and 243.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-15 23:47:08,291 INFO L158 Benchmark]: RCFGBuilder took 4878.67ms. Allocated memory is still 307.2MB. Free memory was 242.6MB in the beginning and 242.5MB in the end (delta: 76.8kB). Peak memory consumption was 54.1MB. Max. memory is 8.0GB. [2023-12-15 23:47:08,292 INFO L158 Benchmark]: TraceAbstraction took 70336.31ms. Allocated memory was 307.2MB in the beginning and 482.3MB in the end (delta: 175.1MB). Free memory was 242.0MB in the beginning and 186.6MB in the end (delta: 55.4MB). Peak memory consumption was 230.1MB. Max. memory is 8.0GB. [2023-12-15 23:47:08,293 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory was 208.5MB in the beginning and 208.4MB in the end (delta: 138.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 606.40ms. Allocated memory was 255.9MB in the beginning and 307.2MB in the end (delta: 51.4MB). Free memory was 188.8MB in the beginning and 258.3MB in the end (delta: -69.5MB). Peak memory consumption was 17.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.75ms. Allocated memory is still 307.2MB. Free memory was 258.3MB in the beginning and 252.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 107.20ms. Allocated memory is still 307.2MB. Free memory was 252.0MB in the beginning and 243.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 4878.67ms. Allocated memory is still 307.2MB. Free memory was 242.6MB in the beginning and 242.5MB in the end (delta: 76.8kB). Peak memory consumption was 54.1MB. Max. memory is 8.0GB. * TraceAbstraction took 70336.31ms. Allocated memory was 307.2MB in the beginning and 482.3MB in the end (delta: 175.1MB). Free memory was 242.0MB in the beginning and 186.6MB in the end (delta: 55.4MB). Peak memory consumption was 230.1MB. 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: 539]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 539). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 173 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 70.3s, OverallIterations: 6, TraceHistogramMax: 41, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 62.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15 mSolverCounterUnknown, 282 SdHoareTripleChecker+Valid, 61.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 281 mSDsluCounter, 3348 SdHoareTripleChecker+Invalid, 61.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2085 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 727 IncrementalHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 1263 mSDtfsCounter, 727 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2425 GetRequests, 2394 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=5, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 166 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 2687 NumberOfCodeBlocks, 2447 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3504 ConstructedInterpolants, 0 QuantifiedInterpolants, 4063 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5447 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 41627/41970 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