/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-pthread/cs_fib_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:36:23,287 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:36:23,354 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 06:36:23,358 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:36:23,359 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:36:23,380 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:36:23,381 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:36:23,381 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:36:23,381 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:36:23,384 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:36:23,384 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:36:23,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:36:23,385 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:36:23,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:36:23,386 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:36:23,387 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:36:23,387 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:36:23,387 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:36:23,387 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 06:36:23,388 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:36:23,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:36:23,388 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:36:23,389 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:36:23,389 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:36:23,389 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:36:23,389 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:36:23,389 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:36:23,389 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:36:23,390 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:36:23,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:36:23,391 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:36:23,391 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:36:23,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:36:23,391 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:36:23,391 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:36:23,391 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:36:23,391 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 06:36:23,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 06:36:23,392 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:36:23,392 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:36:23,392 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:36:23,392 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:36:23,392 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:36:23,392 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 06:36:23,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:36:23,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:36:23,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:36:23,603 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:36:23,603 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:36:23,604 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_fib_longer-1.i [2023-12-16 06:36:24,800 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:36:25,036 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:36:25,037 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_fib_longer-1.i [2023-12-16 06:36:25,063 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a20d6f6b/b4aa0f1c11664fcf8f13c4cad254825e/FLAG216658d73 [2023-12-16 06:36:25,074 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a20d6f6b/b4aa0f1c11664fcf8f13c4cad254825e [2023-12-16 06:36:25,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:36:25,077 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:36:25,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:36:25,078 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:36:25,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:36:25,082 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:36:25" (1/1) ... [2023-12-16 06:36:25,082 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33478f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:25, skipping insertion in model container [2023-12-16 06:36:25,082 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:36:25" (1/1) ... [2023-12-16 06:36:25,126 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:36:25,321 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_longer-1.i[23609,23622] [2023-12-16 06:36:25,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:36:25,459 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:36:25,485 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_longer-1.i[23609,23622] [2023-12-16 06:36:25,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:36:25,569 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:36:25,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:25 WrapperNode [2023-12-16 06:36:25,570 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:36:25,571 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:36:25,571 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:36:25,571 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:36:25,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:25" (1/1) ... [2023-12-16 06:36:25,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:25" (1/1) ... [2023-12-16 06:36:25,677 INFO L138 Inliner]: procedures = 144, calls = 395, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 741 [2023-12-16 06:36:25,677 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:36:25,678 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:36:25,678 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:36:25,678 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:36:25,686 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:25" (1/1) ... [2023-12-16 06:36:25,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:25" (1/1) ... [2023-12-16 06:36:25,694 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:25" (1/1) ... [2023-12-16 06:36:25,724 INFO L175 MemorySlicer]: Split 262 memory accesses to 14 slices as follows [2, 8, 8, 13, 42, 37, 25, 25, 11, 37, 0, 37, 4, 13]. 16 percent of accesses are in the largest equivalence class. The 31 initializations are split as follows [2, 3, 3, 0, 0, 0, 7, 7, 7, 0, 0, 0, 2, 0]. The 71 writes are split as follows [0, 2, 2, 1, 24, 19, 8, 8, 2, 1, 0, 1, 2, 1]. [2023-12-16 06:36:25,727 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:25" (1/1) ... [2023-12-16 06:36:25,728 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:25" (1/1) ... [2023-12-16 06:36:25,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:25" (1/1) ... [2023-12-16 06:36:25,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:25" (1/1) ... [2023-12-16 06:36:25,755 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:25" (1/1) ... [2023-12-16 06:36:25,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:25" (1/1) ... [2023-12-16 06:36:25,765 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:36:25,766 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:36:25,766 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:36:25,766 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:36:25,767 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:25" (1/1) ... [2023-12-16 06:36:25,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:36:25,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:36:25,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 06:36:25,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 06:36:25,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 06:36:25,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 06:36:25,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-16 06:36:25,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-16 06:36:25,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-16 06:36:25,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-16 06:36:25,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-16 06:36:25,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-16 06:36:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-16 06:36:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-16 06:36:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-16 06:36:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-16 06:36:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-16 06:36:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-16 06:36:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 06:36:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 06:36:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-16 06:36:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-16 06:36:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-16 06:36:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-16 06:36:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-16 06:36:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-16 06:36:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-16 06:36:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-16 06:36:25,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-16 06:36:25,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-16 06:36:25,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-16 06:36:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-16 06:36:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 06:36:25,836 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 06:36:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:36:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-16 06:36:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-16 06:36:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-16 06:36:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-16 06:36:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-12-16 06:36:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-12-16 06:36:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-12-16 06:36:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-12-16 06:36:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-12-16 06:36:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-12-16 06:36:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-12-16 06:36:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-12-16 06:36:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-12-16 06:36:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-12-16 06:36:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-12-16 06:36:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-12-16 06:36:25,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-12-16 06:36:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-16 06:36:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-16 06:36:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-16 06:36:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-12-16 06:36:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-12-16 06:36:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-12-16 06:36:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-12-16 06:36:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-12-16 06:36:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-12-16 06:36:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-12-16 06:36:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-12-16 06:36:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-12-16 06:36:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-12-16 06:36:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-12-16 06:36:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-16 06:36:25,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-16 06:36:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-16 06:36:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-12-16 06:36:25,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-12-16 06:36:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 06:36:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 06:36:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 06:36:25,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 06:36:25,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-16 06:36:25,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-16 06:36:25,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-16 06:36:25,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-16 06:36:25,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-16 06:36:25,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-16 06:36:25,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-16 06:36:25,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-16 06:36:25,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-16 06:36:25,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-16 06:36:25,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:36:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:36:26,080 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:36:26,081 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:36:26,297 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; [2023-12-16 06:36:26,297 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)); [2023-12-16 06:36:26,297 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; [2023-12-16 06:36:26,297 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)); [2023-12-16 06:36:26,297 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: SUMMARY for call __CS_cs(); srcloc: null [2023-12-16 06:36:26,298 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L734-1: 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; [2023-12-16 06:36:26,298 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L734-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-16 06:36:30,717 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:36:30,748 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:36:30,748 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-16 06:36:30,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:36:30 BoogieIcfgContainer [2023-12-16 06:36:30,749 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:36:30,750 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:36:30,750 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:36:30,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:36:30,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:36:25" (1/3) ... [2023-12-16 06:36:30,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7dc492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:36:30, skipping insertion in model container [2023-12-16 06:36:30,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:36:25" (2/3) ... [2023-12-16 06:36:30,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7dc492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:36:30, skipping insertion in model container [2023-12-16 06:36:30,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:36:30" (3/3) ... [2023-12-16 06:36:30,754 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_fib_longer-1.i [2023-12-16 06:36:30,767 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:36:30,767 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 06:36:30,802 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:36:30,807 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;@649b3222, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:36:30,807 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 06:36:30,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 179 states, 106 states have (on average 1.349056603773585) internal successors, (143), 107 states have internal predecessors, (143), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-16 06:36:30,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2023-12-16 06:36:30,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:36:30,848 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:36:30,849 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:36:30,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:36:30,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1363576071, now seen corresponding path program 1 times [2023-12-16 06:36:30,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:36:30,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427083611] [2023-12-16 06:36:30,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:36:30,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:36:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 06:36:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 06:36:31,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 06:36:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-16 06:36:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 06:36:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-16 06:36:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-16 06:36:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 06:36:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 06:36:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 06:36:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 06:36:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 06:36:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 06:36:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 06:36:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 06:36:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 06:36:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-16 06:36:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-16 06:36:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 06:36:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-16 06:36:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-16 06:36:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-16 06:36:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-16 06:36:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-16 06:36:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-16 06:36:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-16 06:36:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-16 06:36:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-16 06:36:31,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-16 06:36:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-16 06:36:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-16 06:36:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-16 06:36:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-16 06:36:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-16 06:36:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-16 06:36:31,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-16 06:36:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 06:36:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-16 06:36:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-16 06:36:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-16 06:36:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-16 06:36:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-16 06:36:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-16 06:36:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-16 06:36:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-16 06:36:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-16 06:36:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-16 06:36:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-16 06:36:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:31,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-12-16 06:36:31,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:36:31,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427083611] [2023-12-16 06:36:31,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427083611] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:36:31,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:36:31,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:36:31,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120497394] [2023-12-16 06:36:31,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:36:31,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:36:31,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:36:31,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:36:31,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:36:31,917 INFO L87 Difference]: Start difference. First operand has 179 states, 106 states have (on average 1.349056603773585) internal successors, (143), 107 states have internal predecessors, (143), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-12-16 06:36:31,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:36:31,987 INFO L93 Difference]: Finished difference Result 360 states and 625 transitions. [2023-12-16 06:36:31,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:36:31,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 299 [2023-12-16 06:36:31,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:36:31,996 INFO L225 Difference]: With dead ends: 360 [2023-12-16 06:36:31,996 INFO L226 Difference]: Without dead ends: 180 [2023-12-16 06:36:32,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:36:32,002 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 3 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:36:32,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 525 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:36:32,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-16 06:36:32,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 178. [2023-12-16 06:36:32,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 106 states have (on average 1.2830188679245282) internal successors, (136), 106 states have internal predecessors, (136), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-16 06:36:32,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 270 transitions. [2023-12-16 06:36:32,045 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 270 transitions. Word has length 299 [2023-12-16 06:36:32,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:36:32,045 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 270 transitions. [2023-12-16 06:36:32,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-12-16 06:36:32,046 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 270 transitions. [2023-12-16 06:36:32,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2023-12-16 06:36:32,052 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:36:32,053 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:36:32,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 06:36:32,053 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:36:32,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:36:32,054 INFO L85 PathProgramCache]: Analyzing trace with hash 20336347, now seen corresponding path program 1 times [2023-12-16 06:36:32,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:36:32,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704349719] [2023-12-16 06:36:32,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:36:32,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:36:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 06:36:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 06:36:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 06:36:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 06:36:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 06:36:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 06:36:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-16 06:36:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-16 06:36:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-16 06:36:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 06:36:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 06:36:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 06:36:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 06:36:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 06:36:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 06:36:32,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-16 06:36:32,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 06:36:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-16 06:36:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-16 06:36:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-16 06:36:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-16 06:36:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-16 06:36:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 06:36:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-16 06:36:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-16 06:36:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-16 06:36:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-16 06:36:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-16 06:36:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-16 06:36:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-16 06:36:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-16 06:36:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-16 06:36:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-16 06:36:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-16 06:36:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-16 06:36:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-16 06:36:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-16 06:36:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-16 06:36:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-16 06:36:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-16 06:36:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-16 06:36:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-16 06:36:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-16 06:36:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-16 06:36:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-16 06:36:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-16 06:36:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-16 06:36:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-12-16 06:36:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4513 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-12-16 06:36:32,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:36:32,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704349719] [2023-12-16 06:36:32,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704349719] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:36:32,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:36:32,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:36:32,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078295976] [2023-12-16 06:36:32,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:36:32,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:36:32,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:36:32,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:36:32,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:36:32,539 INFO L87 Difference]: Start difference. First operand 178 states and 270 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-12-16 06:36:32,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:36:32,576 INFO L93 Difference]: Finished difference Result 355 states and 540 transitions. [2023-12-16 06:36:32,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:36:32,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 302 [2023-12-16 06:36:32,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:36:32,579 INFO L225 Difference]: With dead ends: 355 [2023-12-16 06:36:32,579 INFO L226 Difference]: Without dead ends: 179 [2023-12-16 06:36:32,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:36:32,580 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 0 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:36:32,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 526 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:36:32,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-12-16 06:36:32,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2023-12-16 06:36:32,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 107 states have (on average 1.280373831775701) internal successors, (137), 107 states have internal predecessors, (137), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-16 06:36:32,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 271 transitions. [2023-12-16 06:36:32,593 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 271 transitions. Word has length 302 [2023-12-16 06:36:32,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:36:32,593 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 271 transitions. [2023-12-16 06:36:32,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-12-16 06:36:32,594 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 271 transitions. [2023-12-16 06:36:32,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2023-12-16 06:36:32,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:36:32,597 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:36:32,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 06:36:32,597 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:36:32,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:36:32,598 INFO L85 PathProgramCache]: Analyzing trace with hash 366030376, now seen corresponding path program 1 times [2023-12-16 06:36:32,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:36:32,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032353820] [2023-12-16 06:36:32,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:36:32,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:36:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 06:36:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-16 06:36:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-16 06:36:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 06:36:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 06:36:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:32,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 06:36:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 06:36:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 06:36:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 06:36:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 06:36:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 06:36:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 06:36:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 06:36:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 06:36:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-16 06:36:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-16 06:36:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-16 06:36:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-16 06:36:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-16 06:36:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-16 06:36:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-16 06:36:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-16 06:36:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-16 06:36:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-16 06:36:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-16 06:36:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-16 06:36:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-16 06:36:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-16 06:36:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-16 06:36:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-16 06:36:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-16 06:36:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-16 06:36:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-16 06:36:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-16 06:36:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-16 06:36:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-16 06:36:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-16 06:36:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-16 06:36:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-16 06:36:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-16 06:36:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-16 06:36:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-16 06:36:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-16 06:36:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-16 06:36:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-16 06:36:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-16 06:36:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-16 06:36:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-16 06:36:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,075 INFO L134 CoverageAnalysis]: Checked inductivity of 4514 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-12-16 06:36:33,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:36:33,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032353820] [2023-12-16 06:36:33,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032353820] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:36:33,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15950409] [2023-12-16 06:36:33,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:36:33,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:36:33,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:36:33,079 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 06:36:33,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 06:36:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:33,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 1491 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 06:36:33,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:36:33,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4514 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-12-16 06:36:33,828 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:36:33,930 INFO L134 CoverageAnalysis]: Checked inductivity of 4514 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-12-16 06:36:33,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15950409] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:36:33,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 06:36:33,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-12-16 06:36:33,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730203301] [2023-12-16 06:36:33,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 06:36:33,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:36:33,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:36:33,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:36:33,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:36:33,933 INFO L87 Difference]: Start difference. First operand 179 states and 271 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2023-12-16 06:36:33,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:36:33,974 INFO L93 Difference]: Finished difference Result 358 states and 544 transitions. [2023-12-16 06:36:33,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:36:33,975 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 303 [2023-12-16 06:36:33,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:36:33,976 INFO L225 Difference]: With dead ends: 358 [2023-12-16 06:36:33,977 INFO L226 Difference]: Without dead ends: 181 [2023-12-16 06:36:33,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 699 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:36:33,978 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 0 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:36:33,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 788 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:36:33,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-16 06:36:33,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-12-16 06:36:33,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 109 states have (on average 1.275229357798165) internal successors, (139), 109 states have internal predecessors, (139), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-16 06:36:33,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 273 transitions. [2023-12-16 06:36:33,989 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 273 transitions. Word has length 303 [2023-12-16 06:36:33,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:36:33,989 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 273 transitions. [2023-12-16 06:36:33,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2023-12-16 06:36:33,989 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 273 transitions. [2023-12-16 06:36:33,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-12-16 06:36:33,992 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:36:33,992 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 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, 1, 1, 1, 1, 1, 1] [2023-12-16 06:36:34,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 06:36:34,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:36:34,201 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:36:34,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:36:34,201 INFO L85 PathProgramCache]: Analyzing trace with hash -302876536, now seen corresponding path program 2 times [2023-12-16 06:36:34,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:36:34,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95081575] [2023-12-16 06:36:34,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:36:34,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:36:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 06:36:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 06:36:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-16 06:36:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 06:36:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-16 06:36:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-16 06:36:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 06:36:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 06:36:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 06:36:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 06:36:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 06:36:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 06:36:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 06:36:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 06:36:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 06:36:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-16 06:36:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-16 06:36:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 06:36:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-16 06:36:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-16 06:36:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-16 06:36:34,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-16 06:36:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-16 06:36:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-16 06:36:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-16 06:36:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-16 06:36:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-16 06:36:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-16 06:36:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-16 06:36:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-16 06:36:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-16 06:36:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-16 06:36:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-16 06:36:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-16 06:36:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-16 06:36:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-16 06:36:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-16 06:36:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-16 06:36:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-16 06:36:34,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-16 06:36:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-16 06:36:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-16 06:36:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-16 06:36:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:34,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-16 06:36:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:35,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-16 06:36:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:35,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-16 06:36:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:35,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-16 06:36:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:35,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-16 06:36:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:35,017 INFO L134 CoverageAnalysis]: Checked inductivity of 4519 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2023-12-16 06:36:35,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:36:35,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95081575] [2023-12-16 06:36:35,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95081575] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:36:35,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462723839] [2023-12-16 06:36:35,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 06:36:35,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:36:35,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:36:35,032 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 06:36:35,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 06:36:35,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 06:36:35,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 06:36:35,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-16 06:36:35,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:36:35,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-12-16 06:36:36,243 INFO L134 CoverageAnalysis]: Checked inductivity of 4519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4519 trivial. 0 not checked. [2023-12-16 06:36:36,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 06:36:36,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462723839] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:36:36,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 06:36:36,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 9 [2023-12-16 06:36:36,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625516377] [2023-12-16 06:36:36,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:36:36,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:36:36,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:36:36,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:36:36,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:36:36,246 INFO L87 Difference]: Start difference. First operand 181 states and 273 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-12-16 06:36:40,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:36:44,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:36:48,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:36:49,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:36:49,274 INFO L93 Difference]: Finished difference Result 675 states and 1034 transitions. [2023-12-16 06:36:49,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 06:36:49,274 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 305 [2023-12-16 06:36:49,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:36:49,282 INFO L225 Difference]: With dead ends: 675 [2023-12-16 06:36:49,282 INFO L226 Difference]: Without dead ends: 312 [2023-12-16 06:36:49,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-16 06:36:49,287 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 477 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 133 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2023-12-16 06:36:49,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1069 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 326 Invalid, 3 Unknown, 0 Unchecked, 12.9s Time] [2023-12-16 06:36:49,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-12-16 06:36:49,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2023-12-16 06:36:49,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 197 states have (on average 1.3959390862944163) internal successors, (275), 197 states have internal predecessors, (275), 102 states have call successors, (102), 12 states have call predecessors, (102), 12 states have return successors, (108), 102 states have call predecessors, (108), 102 states have call successors, (108) [2023-12-16 06:36:49,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 485 transitions. [2023-12-16 06:36:49,339 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 485 transitions. Word has length 305 [2023-12-16 06:36:49,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:36:49,339 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 485 transitions. [2023-12-16 06:36:49,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-12-16 06:36:49,340 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 485 transitions. [2023-12-16 06:36:49,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-12-16 06:36:49,343 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:36:49,343 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:36:49,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 06:36:49,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-12-16 06:36:49,555 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:36:49,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:36:49,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1763185040, now seen corresponding path program 1 times [2023-12-16 06:36:49,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:36:49,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701217477] [2023-12-16 06:36:49,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:36:49,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:36:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 06:36:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 06:36:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 06:36:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 06:36:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 06:36:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 06:36:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 06:36:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 06:36:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 06:36:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 06:36:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 06:36:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 06:36:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 06:36:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 06:36:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 06:36:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 06:36:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-16 06:36:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-16 06:36:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-16 06:36:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 06:36:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-16 06:36:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-16 06:36:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-16 06:36:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-16 06:36:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-16 06:36:50,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-16 06:36:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-16 06:36:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-16 06:36:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-16 06:36:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-16 06:36:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-16 06:36:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-16 06:36:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-16 06:36:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 06:36:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-16 06:36:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-16 06:36:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-16 06:36:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-16 06:36:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-16 06:36:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-16 06:36:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-16 06:36:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-16 06:36:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-16 06:36:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-16 06:36:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-16 06:36:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-16 06:36:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-16 06:36:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-16 06:36:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-16 06:36:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-16 06:36:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-16 06:36:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-16 06:36:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-16 06:36:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-16 06:36:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-16 06:36:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-16 06:36:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-16 06:36:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-12-16 06:36:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-12-16 06:36:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:50,394 INFO L134 CoverageAnalysis]: Checked inductivity of 5339 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5338 trivial. 0 not checked. [2023-12-16 06:36:50,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:36:50,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701217477] [2023-12-16 06:36:50,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701217477] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:36:50,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430543963] [2023-12-16 06:36:50,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:36:50,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:36:50,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:36:50,396 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 06:36:50,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 06:36:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:36:51,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 1994 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 06:36:51,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:36:51,196 INFO L134 CoverageAnalysis]: Checked inductivity of 5339 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5338 trivial. 0 not checked. [2023-12-16 06:36:51,196 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:36:51,342 INFO L134 CoverageAnalysis]: Checked inductivity of 5339 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5338 trivial. 0 not checked. [2023-12-16 06:36:51,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430543963] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:36:51,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 06:36:51,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 3, 4] total 10 [2023-12-16 06:36:51,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97690431] [2023-12-16 06:36:51,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 06:36:51,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 06:36:51,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:36:51,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 06:36:51,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-16 06:36:51,344 INFO L87 Difference]: Start difference. First operand 312 states and 485 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-12-16 06:36:55,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:36:59,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:37:03,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:37:04,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:37:04,501 INFO L93 Difference]: Finished difference Result 643 states and 994 transitions. [2023-12-16 06:37:04,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 06:37:04,501 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 367 [2023-12-16 06:37:04,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:37:04,503 INFO L225 Difference]: With dead ends: 643 [2023-12-16 06:37:04,503 INFO L226 Difference]: Without dead ends: 339 [2023-12-16 06:37:04,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 854 GetRequests, 845 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-12-16 06:37:04,505 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 71 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 202 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:04,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 741 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 407 Invalid, 3 Unknown, 0 Unchecked, 13.0s Time] [2023-12-16 06:37:04,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-12-16 06:37:04,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 336. [2023-12-16 06:37:04,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 219 states have (on average 1.36986301369863) internal successors, (300), 221 states have internal predecessors, (300), 102 states have call successors, (102), 12 states have call predecessors, (102), 14 states have return successors, (111), 102 states have call predecessors, (111), 102 states have call successors, (111) [2023-12-16 06:37:04,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 513 transitions. [2023-12-16 06:37:04,556 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 513 transitions. Word has length 367 [2023-12-16 06:37:04,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:37:04,556 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 513 transitions. [2023-12-16 06:37:04,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-12-16 06:37:04,557 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 513 transitions. [2023-12-16 06:37:04,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-16 06:37:04,561 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:37:04,561 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 12, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:37:04,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 06:37:04,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:37:04,772 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:37:04,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:37:04,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1138292141, now seen corresponding path program 2 times [2023-12-16 06:37:04,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:37:04,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063076191] [2023-12-16 06:37:04,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:04,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:37:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-16 06:37:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 06:37:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 06:37:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 06:37:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 06:37:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 06:37:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 06:37:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 06:37:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 06:37:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 06:37:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 06:37:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 06:37:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 06:37:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-16 06:37:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-16 06:37:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-16 06:37:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 06:37:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-16 06:37:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-16 06:37:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-16 06:37:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-16 06:37:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-16 06:37:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-16 06:37:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-16 06:37:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-16 06:37:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-16 06:37:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-16 06:37:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-16 06:37:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-16 06:37:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-16 06:37:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 06:37:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-16 06:37:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-16 06:37:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-16 06:37:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-16 06:37:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-16 06:37:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-16 06:37:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-16 06:37:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-16 06:37:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-16 06:37:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-16 06:37:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-16 06:37:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-16 06:37:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-16 06:37:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-16 06:37:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-16 06:37:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-16 06:37:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-16 06:37:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-16 06:37:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-16 06:37:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-16 06:37:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-16 06:37:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-16 06:37:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-16 06:37:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-12-16 06:37:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-12-16 06:37:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-12-16 06:37:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-12-16 06:37:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-12-16 06:37:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:06,513 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5468 trivial. 0 not checked. [2023-12-16 06:37:06,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:06,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063076191] [2023-12-16 06:37:06,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063076191] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:37:06,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:37:06,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:37:06,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247426779] [2023-12-16 06:37:06,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:37:06,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:37:06,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:06,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:37:06,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:37:06,516 INFO L87 Difference]: Start difference. First operand 336 states and 513 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) [2023-12-16 06:37:10,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:37:14,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:37:18,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:37:22,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:37:26,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 06:37:29,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:37:29,810 INFO L93 Difference]: Finished difference Result 754 states and 1148 transitions. [2023-12-16 06:37:29,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 06:37:29,811 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) Word has length 385 [2023-12-16 06:37:29,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:37:29,817 INFO L225 Difference]: With dead ends: 754 [2023-12-16 06:37:29,817 INFO L226 Difference]: Without dead ends: 480 [2023-12-16 06:37:29,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2023-12-16 06:37:29,822 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 311 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 144 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:29,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1119 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 899 Invalid, 5 Unknown, 0 Unchecked, 22.4s Time] [2023-12-16 06:37:29,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-16 06:37:29,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 472. [2023-12-16 06:37:29,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 294 states have (on average 1.2925170068027212) internal successors, (380), 297 states have internal predecessors, (380), 158 states have call successors, (158), 16 states have call predecessors, (158), 19 states have return successors, (171), 158 states have call predecessors, (171), 158 states have call successors, (171) [2023-12-16 06:37:29,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 709 transitions. [2023-12-16 06:37:29,871 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 709 transitions. Word has length 385 [2023-12-16 06:37:29,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:37:29,871 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 709 transitions. [2023-12-16 06:37:29,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) [2023-12-16 06:37:29,871 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 709 transitions. [2023-12-16 06:37:29,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-16 06:37:29,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:37:29,876 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 12, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:37:29,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 06:37:29,876 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:37:29,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:37:29,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1781107661, now seen corresponding path program 1 times [2023-12-16 06:37:29,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:37:29,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273142283] [2023-12-16 06:37:29,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:29,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:37:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 06:37:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 06:37:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 06:37:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-16 06:37:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 06:37:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 06:37:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 06:37:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 06:37:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 06:37:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 06:37:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 06:37:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 06:37:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 06:37:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-16 06:37:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-16 06:37:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-16 06:37:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 06:37:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-16 06:37:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-16 06:37:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-16 06:37:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-16 06:37:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-16 06:37:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-16 06:37:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-16 06:37:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-16 06:37:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-12-16 06:37:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-16 06:37:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-16 06:37:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-12-16 06:37:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-16 06:37:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-16 06:37:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-16 06:37:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-12-16 06:37:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-12-16 06:37:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-12-16 06:37:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-16 06:37:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-16 06:37:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-16 06:37:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-12-16 06:37:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-16 06:37:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-12-16 06:37:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-16 06:37:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-16 06:37:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-16 06:37:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-16 06:37:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-16 06:37:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-16 06:37:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-16 06:37:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-16 06:37:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-16 06:37:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-16 06:37:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-16 06:37:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-16 06:37:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-16 06:37:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-12-16 06:37:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-12-16 06:37:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-12-16 06:37:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-12-16 06:37:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-12-16 06:37:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:30,785 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 5356 trivial. 0 not checked. [2023-12-16 06:37:30,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:37:30,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273142283] [2023-12-16 06:37:30,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273142283] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:37:30,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307134920] [2023-12-16 06:37:30,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:37:30,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:37:30,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:37:30,806 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 06:37:30,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 06:37:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:37:31,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 2339 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 06:37:31,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:37:31,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 5356 trivial. 0 not checked. [2023-12-16 06:37:31,746 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:37:31,945 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 5356 trivial. 0 not checked. [2023-12-16 06:37:31,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307134920] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:37:31,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 06:37:31,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 7] total 13 [2023-12-16 06:37:31,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487613413] [2023-12-16 06:37:31,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 06:37:31,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 06:37:31,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:37:31,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 06:37:31,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-12-16 06:37:31,948 INFO L87 Difference]: Start difference. First operand 472 states and 709 transitions. Second operand has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-12-16 06:37:36,043 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... [2023-12-16 06:37:38,209 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:37:38,242 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 [2023-12-16 06:37:39,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 06:37:39,410 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 [2023-12-16 06:37:39,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 892 GetRequests, 878 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-12-16 06:37:39,419 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:37:39,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 14 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-12-16 06:37:39,420 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 06:37:39,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 06:37:39,420 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-16 06:37:39,423 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-12-16 06:37:39,425 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:37:39,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:37:39 BoogieIcfgContainer [2023-12-16 06:37:39,426 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:37:39,427 INFO L158 Benchmark]: Toolchain (without parser) took 74350.10ms. Allocated memory was 266.3MB in the beginning and 476.1MB in the end (delta: 209.7MB). Free memory was 212.2MB in the beginning and 201.6MB in the end (delta: 10.6MB). Peak memory consumption was 220.2MB. Max. memory is 8.0GB. [2023-12-16 06:37:39,427 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 197.1MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:37:39,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.72ms. Allocated memory is still 266.3MB. Free memory was 211.8MB in the beginning and 181.4MB in the end (delta: 30.4MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-12-16 06:37:39,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.53ms. Allocated memory is still 266.3MB. Free memory was 181.4MB in the beginning and 230.3MB in the end (delta: -49.0MB). Peak memory consumption was 9.5MB. Max. memory is 8.0GB. [2023-12-16 06:37:39,427 INFO L158 Benchmark]: Boogie Preprocessor took 87.62ms. Allocated memory is still 266.3MB. Free memory was 230.3MB in the beginning and 220.4MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-16 06:37:39,427 INFO L158 Benchmark]: RCFGBuilder took 4982.70ms. Allocated memory is still 266.3MB. Free memory was 220.4MB in the beginning and 142.8MB in the end (delta: 77.6MB). Peak memory consumption was 77.6MB. Max. memory is 8.0GB. [2023-12-16 06:37:39,427 INFO L158 Benchmark]: TraceAbstraction took 68676.21ms. Allocated memory was 266.3MB in the beginning and 476.1MB in the end (delta: 209.7MB). Free memory was 142.2MB in the beginning and 201.6MB in the end (delta: -59.3MB). Peak memory consumption was 149.8MB. Max. memory is 8.0GB. [2023-12-16 06:37:39,445 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks [2023-12-16 06:37:39,450 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 Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 197.1MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 492.72ms. Allocated memory is still 266.3MB. Free memory was 211.8MB in the beginning and 181.4MB in the end (delta: 30.4MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 106.53ms. Allocated memory is still 266.3MB. Free memory was 181.4MB in the beginning and 230.3MB in the end (delta: -49.0MB). Peak memory consumption was 9.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 87.62ms. Allocated memory is still 266.3MB. Free memory was 230.3MB in the beginning and 220.4MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 4982.70ms. Allocated memory is still 266.3MB. Free memory was 220.4MB in the beginning and 142.8MB in the end (delta: 77.6MB). Peak memory consumption was 77.6MB. Max. memory is 8.0GB. * TraceAbstraction took 68676.21ms. Allocated memory was 266.3MB in the beginning and 476.1MB in the end (delta: 209.7MB). Free memory was 142.2MB in the beginning and 201.6MB in the end (delta: -59.3MB). Peak memory consumption was 149.8MB. 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: 542]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 542). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 179 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 68.6s, OverallIterations: 7, TraceHistogramMax: 52, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 57.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 mSolverCounterUnknown, 925 SdHoareTripleChecker+Valid, 52.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 865 mSDsluCounter, 4782 SdHoareTripleChecker+Invalid, 51.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3103 mSDsCounter, 480 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1711 IncrementalHoareTripleChecker+Invalid, 2204 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 480 mSolverCounterUnsat, 1679 mSDtfsCounter, 1711 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3235 GetRequests, 3180 SyntacticMatches, 4 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=472occurred in iteration=6, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 3706 NumberOfCodeBlocks, 3418 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 4747 ConstructedInterpolants, 0 QuantifiedInterpolants, 6501 SizeOfPredicates, 5 NumberOfNonLiveVariables, 6571 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 69151/69494 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