/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-pthread/cs_peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 03:59:03,799 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 03:59:03,877 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 03:59:03,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 03:59:03,883 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 03:59:03,921 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 03:59:03,922 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 03:59:03,922 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 03:59:03,923 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 03:59:03,927 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 03:59:03,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 03:59:03,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 03:59:03,928 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 03:59:03,929 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 03:59:03,929 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 03:59:03,929 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 03:59:03,930 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 03:59:03,930 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 03:59:03,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 03:59:03,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 03:59:03,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 03:59:03,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 03:59:03,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 03:59:03,932 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 03:59:03,932 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 03:59:03,932 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 03:59:03,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 03:59:03,932 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 03:59:03,933 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 03:59:03,933 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 03:59:03,934 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 03:59:03,934 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 03:59:03,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:59:03,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 03:59:03,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 03:59:03,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 03:59:03,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 03:59:03,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 03:59:03,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 03:59:03,936 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 03:59:03,936 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 03:59:03,936 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 03:59:03,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 03:59:03,936 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 03:59:04,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 03:59:04,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 03:59:04,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 03:59:04,222 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 03:59:04,222 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 03:59:04,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_peterson.i [2023-12-20 03:59:05,386 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 03:59:05,686 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 03:59:05,687 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_peterson.i [2023-12-20 03:59:05,712 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62a1fa89e/18c25ba5b4d24af380da720a621fdbd9/FLAGa3fe8c7ca [2023-12-20 03:59:05,724 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62a1fa89e/18c25ba5b4d24af380da720a621fdbd9 [2023-12-20 03:59:05,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 03:59:05,727 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 03:59:05,728 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 03:59:05,729 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 03:59:05,739 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 03:59:05,740 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:59:05" (1/1) ... [2023-12-20 03:59:05,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e925344 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:05, skipping insertion in model container [2023-12-20 03:59:05,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:59:05" (1/1) ... [2023-12-20 03:59:05,784 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 03:59:06,061 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_peterson.i[23605,23618] [2023-12-20 03:59:06,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:59:06,185 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 03:59:06,218 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_peterson.i[23605,23618] [2023-12-20 03:59:06,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:59:06,297 INFO L206 MainTranslator]: Completed translation [2023-12-20 03:59:06,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:06 WrapperNode [2023-12-20 03:59:06,298 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 03:59:06,299 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 03:59:06,299 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 03:59:06,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 03:59:06,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:06" (1/1) ... [2023-12-20 03:59:06,329 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:06" (1/1) ... [2023-12-20 03:59:06,364 INFO L138 Inliner]: procedures = 145, calls = 276, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 435 [2023-12-20 03:59:06,364 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 03:59:06,365 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 03:59:06,365 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 03:59:06,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 03:59:06,374 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:06" (1/1) ... [2023-12-20 03:59:06,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:06" (1/1) ... [2023-12-20 03:59:06,381 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:06" (1/1) ... [2023-12-20 03:59:06,414 INFO L175 MemorySlicer]: Split 148 memory accesses to 17 slices as follows [2, 5, 8, 8, 5, 29, 21, 7, 7, 7, 7, 13, 5, 13, 0, 6, 5]. 20 percent of accesses are in the largest equivalence class. The 40 initializations are split as follows [2, 0, 3, 3, 0, 9, 9, 3, 3, 3, 3, 0, 0, 0, 0, 2, 0]. The 37 writes are split as follows [0, 1, 2, 2, 1, 11, 6, 2, 2, 2, 2, 1, 1, 1, 0, 2, 1]. [2023-12-20 03:59:06,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:06" (1/1) ... [2023-12-20 03:59:06,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:06" (1/1) ... [2023-12-20 03:59:06,439 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:06" (1/1) ... [2023-12-20 03:59:06,443 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:06" (1/1) ... [2023-12-20 03:59:06,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:06" (1/1) ... [2023-12-20 03:59:06,453 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:06" (1/1) ... [2023-12-20 03:59:06,463 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 03:59:06,464 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 03:59:06,464 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 03:59:06,464 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 03:59:06,465 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:06" (1/1) ... [2023-12-20 03:59:06,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:59:06,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:59:06,493 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) [2023-12-20 03:59:06,526 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 [2023-12-20 03:59:06,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-20 03:59:06,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-20 03:59:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-20 03:59:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-20 03:59:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-20 03:59:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-20 03:59:06,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-20 03:59:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-20 03:59:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-20 03:59:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-20 03:59:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-20 03:59:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-20 03:59:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-20 03:59:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-20 03:59:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-12-20 03:59:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-12-20 03:59:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-12-20 03:59:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-20 03:59:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-20 03:59:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-20 03:59:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-20 03:59:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-20 03:59:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-20 03:59:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-20 03:59:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-20 03:59:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-20 03:59:06,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-20 03:59:06,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-20 03:59:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-20 03:59:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-20 03:59:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-20 03:59:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-12-20 03:59:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-12-20 03:59:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-12-20 03:59:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 03:59:06,543 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 03:59:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 03:59:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-20 03:59:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-20 03:59:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-20 03:59:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-20 03:59:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-12-20 03:59:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-12-20 03:59:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-12-20 03:59:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-12-20 03:59:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-12-20 03:59:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-12-20 03:59:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-12-20 03:59:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-12-20 03:59:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-12-20 03:59:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-12-20 03:59:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-12-20 03:59:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-12-20 03:59:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-12-20 03:59:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-12-20 03:59:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-12-20 03:59:06,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-12-20 03:59:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-20 03:59:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-20 03:59:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-20 03:59:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-12-20 03:59:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-12-20 03:59:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-12-20 03:59:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-12-20 03:59:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-12-20 03:59:06,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-12-20 03:59:06,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-12-20 03:59:06,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-12-20 03:59:06,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-12-20 03:59:06,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-12-20 03:59:06,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-12-20 03:59:06,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-12-20 03:59:06,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-12-20 03:59:06,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-12-20 03:59:06,548 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-12-20 03:59:06,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-12-20 03:59:06,549 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-20 03:59:06,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-20 03:59:06,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-20 03:59:06,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-12-20 03:59:06,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-12-20 03:59:06,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-12-20 03:59:06,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-12-20 03:59:06,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-12-20 03:59:06,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-12-20 03:59:06,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-12-20 03:59:06,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-12-20 03:59:06,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-12-20 03:59:06,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-12-20 03:59:06,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-12-20 03:59:06,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-12-20 03:59:06,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-12-20 03:59:06,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-12-20 03:59:06,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-12-20 03:59:06,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-12-20 03:59:06,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-12-20 03:59:06,552 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-12-20 03:59:06,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-12-20 03:59:06,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 03:59:06,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-20 03:59:06,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-20 03:59:06,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-20 03:59:06,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-20 03:59:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-20 03:59:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-20 03:59:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-20 03:59:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-20 03:59:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-20 03:59:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-20 03:59:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-20 03:59:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-20 03:59:06,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-20 03:59:06,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-20 03:59:06,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-20 03:59:06,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-20 03:59:06,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 03:59:06,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 03:59:06,855 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 03:59:06,857 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 03:59:11,342 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 03:59:11,385 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 03:59:11,385 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-20 03:59:11,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:59:11 BoogieIcfgContainer [2023-12-20 03:59:11,386 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 03:59:11,388 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 03:59:11,388 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 03:59:11,391 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 03:59:11,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 03:59:05" (1/3) ... [2023-12-20 03:59:11,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@298dafc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:59:11, skipping insertion in model container [2023-12-20 03:59:11,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:06" (2/3) ... [2023-12-20 03:59:11,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@298dafc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:59:11, skipping insertion in model container [2023-12-20 03:59:11,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:59:11" (3/3) ... [2023-12-20 03:59:11,393 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_peterson.i [2023-12-20 03:59:11,408 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 03:59:11,408 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 03:59:11,447 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 03:59:11,453 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;@586fe96b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 03:59:11,453 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 03:59:11,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 66 states have (on average 1.3484848484848484) internal successors, (89), 67 states have internal predecessors, (89), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-20 03:59:11,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-20 03:59:11,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:11,483 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:59:11,483 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:11,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:11,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1351195561, now seen corresponding path program 1 times [2023-12-20 03:59:11,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:11,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512777529] [2023-12-20 03:59:11,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:11,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-20 03:59:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 03:59:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 03:59:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 03:59:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 03:59:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-20 03:59:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 03:59:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 03:59:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 03:59:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 03:59:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 03:59:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 03:59:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-20 03:59:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-20 03:59:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 03:59:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 03:59:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 03:59:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 03:59:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 03:59:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 03:59:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,215 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-20 03:59:12,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:12,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512777529] [2023-12-20 03:59:12,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512777529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:59:12,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:59:12,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:59:12,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825434199] [2023-12-20 03:59:12,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:59:12,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:59:12,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:12,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:59:12,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:59:12,253 INFO L87 Difference]: Start difference. First operand has 107 states, 66 states have (on average 1.3484848484848484) internal successors, (89), 67 states have internal predecessors, (89), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-20 03:59:12,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:12,369 INFO L93 Difference]: Finished difference Result 216 states and 352 transitions. [2023-12-20 03:59:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:59:12,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 131 [2023-12-20 03:59:12,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:12,379 INFO L225 Difference]: With dead ends: 216 [2023-12-20 03:59:12,380 INFO L226 Difference]: Without dead ends: 108 [2023-12-20 03:59:12,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:59:12,390 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 3 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:12,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 291 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:59:12,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-12-20 03:59:12,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2023-12-20 03:59:12,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 66 states have (on average 1.2727272727272727) internal successors, (84), 66 states have internal predecessors, (84), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-20 03:59:12,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 152 transitions. [2023-12-20 03:59:12,446 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 152 transitions. Word has length 131 [2023-12-20 03:59:12,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:12,446 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 152 transitions. [2023-12-20 03:59:12,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-20 03:59:12,447 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 152 transitions. [2023-12-20 03:59:12,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-20 03:59:12,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:12,455 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:59:12,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 03:59:12,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:12,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:12,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1880845933, now seen corresponding path program 1 times [2023-12-20 03:59:12,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:12,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445931042] [2023-12-20 03:59:12,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:12,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 03:59:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 03:59:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 03:59:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 03:59:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-20 03:59:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 03:59:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 03:59:12,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-20 03:59:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-20 03:59:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-20 03:59:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-20 03:59:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-20 03:59:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 03:59:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 03:59:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-20 03:59:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-20 03:59:12,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 03:59:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-20 03:59:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-20 03:59:12,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-20 03:59:12,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:12,894 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-20 03:59:12,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:12,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445931042] [2023-12-20 03:59:12,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445931042] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:59:12,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:59:12,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:59:12,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462728889] [2023-12-20 03:59:12,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:59:12,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:59:12,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:12,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:59:12,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:59:12,909 INFO L87 Difference]: Start difference. First operand 106 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-20 03:59:12,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:12,972 INFO L93 Difference]: Finished difference Result 211 states and 304 transitions. [2023-12-20 03:59:12,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:59:12,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 134 [2023-12-20 03:59:12,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:12,975 INFO L225 Difference]: With dead ends: 211 [2023-12-20 03:59:12,975 INFO L226 Difference]: Without dead ends: 107 [2023-12-20 03:59:12,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:59:12,977 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:12,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 292 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:59:12,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-12-20 03:59:12,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-12-20 03:59:12,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 67 states have (on average 1.2686567164179106) internal successors, (85), 67 states have internal predecessors, (85), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-20 03:59:12,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 153 transitions. [2023-12-20 03:59:12,988 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 153 transitions. Word has length 134 [2023-12-20 03:59:12,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:12,988 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 153 transitions. [2023-12-20 03:59:12,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-20 03:59:12,989 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 153 transitions. [2023-12-20 03:59:12,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-20 03:59:12,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:12,990 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:59:12,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 03:59:12,991 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:12,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:12,991 INFO L85 PathProgramCache]: Analyzing trace with hash 633416966, now seen corresponding path program 1 times [2023-12-20 03:59:12,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:12,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441021133] [2023-12-20 03:59:12,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:12,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 03:59:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 03:59:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 03:59:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 03:59:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 03:59:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-20 03:59:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-20 03:59:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-20 03:59:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-20 03:59:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-20 03:59:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 03:59:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 03:59:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 03:59:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-20 03:59:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-20 03:59:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-20 03:59:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-20 03:59:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-20 03:59:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-20 03:59:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 03:59:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,349 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-20 03:59:13,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:13,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441021133] [2023-12-20 03:59:13,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441021133] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:59:13,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206843163] [2023-12-20 03:59:13,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:13,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:13,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:59:13,356 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) [2023-12-20 03:59:13,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 03:59:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:13,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 03:59:13,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:59:13,932 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-20 03:59:13,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:59:14,036 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-20 03:59:14,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206843163] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:59:14,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:59:14,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-12-20 03:59:14,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006977966] [2023-12-20 03:59:14,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:59:14,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:59:14,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:14,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:59:14,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:59:14,039 INFO L87 Difference]: Start difference. First operand 107 states and 153 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-20 03:59:14,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:14,098 INFO L93 Difference]: Finished difference Result 214 states and 308 transitions. [2023-12-20 03:59:14,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:59:14,102 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 135 [2023-12-20 03:59:14,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:14,105 INFO L225 Difference]: With dead ends: 214 [2023-12-20 03:59:14,106 INFO L226 Difference]: Without dead ends: 109 [2023-12-20 03:59:14,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 307 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:59:14,107 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:14,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 437 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:59:14,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-12-20 03:59:14,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-12-20 03:59:14,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 69 states have internal predecessors, (87), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-20 03:59:14,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 155 transitions. [2023-12-20 03:59:14,124 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 155 transitions. Word has length 135 [2023-12-20 03:59:14,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:14,124 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 155 transitions. [2023-12-20 03:59:14,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-20 03:59:14,124 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 155 transitions. [2023-12-20 03:59:14,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-20 03:59:14,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:14,126 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 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] [2023-12-20 03:59:14,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 03:59:14,334 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 [2023-12-20 03:59:14,335 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:14,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:14,336 INFO L85 PathProgramCache]: Analyzing trace with hash -593786202, now seen corresponding path program 2 times [2023-12-20 03:59:14,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:14,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58577693] [2023-12-20 03:59:14,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:14,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 03:59:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 03:59:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 03:59:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 03:59:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-20 03:59:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 03:59:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 03:59:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 03:59:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 03:59:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 03:59:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 03:59:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-20 03:59:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-20 03:59:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 03:59:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 03:59:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 03:59:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 03:59:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 03:59:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 03:59:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 03:59:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:14,673 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2023-12-20 03:59:14,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:14,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58577693] [2023-12-20 03:59:14,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58577693] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:59:14,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366483446] [2023-12-20 03:59:14,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-20 03:59:14,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:14,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:59:14,675 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) [2023-12-20 03:59:14,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 03:59:15,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-20 03:59:15,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-20 03:59:15,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 03:59:15,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:59:15,152 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 25 treesize of output 13 [2023-12-20 03:59:15,325 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2023-12-20 03:59:15,325 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 03:59:15,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366483446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:59:15,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 03:59:15,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2023-12-20 03:59:15,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510918926] [2023-12-20 03:59:15,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:59:15,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:59:15,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:15,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:59:15,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:59:15,327 INFO L87 Difference]: Start difference. First operand 109 states and 155 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-20 03:59:19,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:23,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:27,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:27,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:27,833 INFO L93 Difference]: Finished difference Result 392 states and 574 transitions. [2023-12-20 03:59:27,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 03:59:27,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 137 [2023-12-20 03:59:27,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:27,842 INFO L225 Difference]: With dead ends: 392 [2023-12-20 03:59:27,842 INFO L226 Difference]: Without dead ends: 210 [2023-12-20 03:59:27,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:59:27,847 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 206 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:27,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 715 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 204 Invalid, 3 Unknown, 0 Unchecked, 12.4s Time] [2023-12-20 03:59:27,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-12-20 03:59:27,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2023-12-20 03:59:27,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 135 states have (on average 1.3111111111111111) internal successors, (177), 135 states have internal predecessors, (177), 59 states have call successors, (59), 15 states have call predecessors, (59), 15 states have return successors, (68), 59 states have call predecessors, (68), 59 states have call successors, (68) [2023-12-20 03:59:27,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 304 transitions. [2023-12-20 03:59:27,894 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 304 transitions. Word has length 137 [2023-12-20 03:59:27,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:27,895 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 304 transitions. [2023-12-20 03:59:27,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-20 03:59:27,895 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 304 transitions. [2023-12-20 03:59:27,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-20 03:59:27,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:27,903 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 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] [2023-12-20 03:59:27,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 03:59:28,110 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 [2023-12-20 03:59:28,111 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:28,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:28,111 INFO L85 PathProgramCache]: Analyzing trace with hash 86734595, now seen corresponding path program 1 times [2023-12-20 03:59:28,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:28,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110604709] [2023-12-20 03:59:28,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:28,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 03:59:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 03:59:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 03:59:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 03:59:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 03:59:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-20 03:59:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-20 03:59:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 03:59:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 03:59:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-20 03:59:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-20 03:59:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-20 03:59:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-20 03:59:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-20 03:59:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-20 03:59:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 03:59:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-20 03:59:28,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-20 03:59:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-20 03:59:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-20 03:59:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-20 03:59:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-20 03:59:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-20 03:59:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-20 03:59:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-20 03:59:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-20 03:59:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 03:59:28,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:28,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1138 trivial. 0 not checked. [2023-12-20 03:59:28,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:28,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110604709] [2023-12-20 03:59:28,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110604709] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:59:28,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838977348] [2023-12-20 03:59:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:28,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:28,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:59:28,659 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) [2023-12-20 03:59:28,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 03:59:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:29,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 03:59:29,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:59:29,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1138 trivial. 0 not checked. [2023-12-20 03:59:29,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:59:29,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1138 trivial. 0 not checked. [2023-12-20 03:59:29,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838977348] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:59:29,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:59:29,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 4] total 10 [2023-12-20 03:59:29,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318714393] [2023-12-20 03:59:29,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:59:29,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 03:59:29,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:29,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 03:59:29,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-12-20 03:59:29,391 INFO L87 Difference]: Start difference. First operand 210 states and 304 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (66), 6 states have call predecessors, (66), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2023-12-20 03:59:33,480 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 [] [2023-12-20 03:59:37,487 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 [] [2023-12-20 03:59:38,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:38,051 INFO L93 Difference]: Finished difference Result 436 states and 630 transitions. [2023-12-20 03:59:38,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 03:59:38,052 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (66), 6 states have call predecessors, (66), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 201 [2023-12-20 03:59:38,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:38,054 INFO L225 Difference]: With dead ends: 436 [2023-12-20 03:59:38,054 INFO L226 Difference]: Without dead ends: 234 [2023-12-20 03:59:38,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 459 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:59:38,056 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 58 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 105 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:38,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 320 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 289 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2023-12-20 03:59:38,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-12-20 03:59:38,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 228. [2023-12-20 03:59:38,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 150 states have (on average 1.2933333333333332) internal successors, (194), 153 states have internal predecessors, (194), 59 states have call successors, (59), 15 states have call predecessors, (59), 18 states have return successors, (73), 59 states have call predecessors, (73), 59 states have call successors, (73) [2023-12-20 03:59:38,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 326 transitions. [2023-12-20 03:59:38,083 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 326 transitions. Word has length 201 [2023-12-20 03:59:38,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:38,084 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 326 transitions. [2023-12-20 03:59:38,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (66), 6 states have call predecessors, (66), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2023-12-20 03:59:38,084 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 326 transitions. [2023-12-20 03:59:38,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-20 03:59:38,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:38,087 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 9, 4, 4, 4, 4, 3, 3, 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] [2023-12-20 03:59:38,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 03:59:38,296 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 [2023-12-20 03:59:38,297 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:38,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:38,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1247692275, now seen corresponding path program 2 times [2023-12-20 03:59:38,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:38,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588982407] [2023-12-20 03:59:38,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:38,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-20 03:59:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 03:59:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 03:59:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 03:59:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 03:59:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-20 03:59:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-20 03:59:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-20 03:59:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-20 03:59:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-20 03:59:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-20 03:59:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-20 03:59:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-20 03:59:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 03:59:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-20 03:59:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-20 03:59:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-20 03:59:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-20 03:59:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-20 03:59:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-20 03:59:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-20 03:59:39,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-20 03:59:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-20 03:59:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-20 03:59:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 03:59:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-20 03:59:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-20 03:59:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:39,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1207 trivial. 0 not checked. [2023-12-20 03:59:39,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:39,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588982407] [2023-12-20 03:59:39,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588982407] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:59:39,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:59:39,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:59:39,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172134195] [2023-12-20 03:59:39,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:59:39,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:59:39,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:39,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:59:39,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:59:39,351 INFO L87 Difference]: Start difference. First operand 228 states and 326 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-20 03:59:43,418 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 [] [2023-12-20 03:59:47,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:51,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:55,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 03:59:59,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:03,465 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 [] [2023-12-20 04:00:04,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:00:04,739 INFO L93 Difference]: Finished difference Result 506 states and 724 transitions. [2023-12-20 04:00:04,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 04:00:04,740 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 213 [2023-12-20 04:00:04,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:00:04,742 INFO L225 Difference]: With dead ends: 506 [2023-12-20 04:00:04,742 INFO L226 Difference]: Without dead ends: 319 [2023-12-20 04:00:04,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-12-20 04:00:04,744 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 148 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 52 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.1s IncrementalHoareTripleChecker+Time [2023-12-20 04:00:04,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 657 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 704 Invalid, 6 Unknown, 0 Unchecked, 25.1s Time] [2023-12-20 04:00:04,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-12-20 04:00:04,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 311. [2023-12-20 04:00:04,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 197 states have (on average 1.2538071065989849) internal successors, (247), 202 states have internal predecessors, (247), 89 states have call successors, (89), 20 states have call predecessors, (89), 24 states have return successors, (108), 88 states have call predecessors, (108), 89 states have call successors, (108) [2023-12-20 04:00:04,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 444 transitions. [2023-12-20 04:00:04,782 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 444 transitions. Word has length 213 [2023-12-20 04:00:04,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:00:04,783 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 444 transitions. [2023-12-20 04:00:04,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-20 04:00:04,783 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 444 transitions. [2023-12-20 04:00:04,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-20 04:00:04,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:00:04,786 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 9, 4, 4, 4, 4, 3, 3, 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] [2023-12-20 04:00:04,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 04:00:04,786 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:00:04,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:00:04,787 INFO L85 PathProgramCache]: Analyzing trace with hash 842325453, now seen corresponding path program 1 times [2023-12-20 04:00:04,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:00:04,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614550753] [2023-12-20 04:00:04,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:00:04,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:00:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:00:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 04:00:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 04:00:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:00:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 04:00:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-20 04:00:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-20 04:00:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-20 04:00:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-20 04:00:05,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-20 04:00:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-20 04:00:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-20 04:00:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-20 04:00:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 04:00:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-20 04:00:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-20 04:00:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-20 04:00:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-20 04:00:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-20 04:00:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-20 04:00:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-20 04:00:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-20 04:00:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-20 04:00:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-20 04:00:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 04:00:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-20 04:00:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-20 04:00:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:05,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1204 trivial. 0 not checked. [2023-12-20 04:00:05,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:00:05,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614550753] [2023-12-20 04:00:05,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614550753] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:00:05,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077461411] [2023-12-20 04:00:05,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:00:05,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:00:05,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:00:05,888 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) [2023-12-20 04:00:05,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 04:00:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:06,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 1715 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-20 04:00:06,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:00:06,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-20 04:00:07,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 324 proven. 12 refuted. 0 times theorem prover too weak. 871 trivial. 0 not checked. [2023-12-20 04:00:07,055 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:00:07,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 1191 trivial. 0 not checked. [2023-12-20 04:00:07,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077461411] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:00:07,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:00:07,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 10] total 32 [2023-12-20 04:00:07,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894276702] [2023-12-20 04:00:07,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:00:07,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-20 04:00:07,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:00:07,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-20 04:00:07,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=813, Unknown=0, NotChecked=0, Total=992 [2023-12-20 04:00:07,672 INFO L87 Difference]: Start difference. First operand 311 states and 444 transitions. Second operand has 32 states, 29 states have (on average 4.0344827586206895) internal successors, (117), 25 states have internal predecessors, (117), 19 states have call successors, (68), 13 states have call predecessors, (68), 12 states have return successors, (68), 16 states have call predecessors, (68), 19 states have call successors, (68) [2023-12-20 04:00:11,778 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 [] [2023-12-20 04:00:15,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:19,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:23,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:27,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:31,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:35,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:40,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:00:40,701 INFO L93 Difference]: Finished difference Result 777 states and 1118 transitions. [2023-12-20 04:00:40,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-20 04:00:40,701 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 4.0344827586206895) internal successors, (117), 25 states have internal predecessors, (117), 19 states have call successors, (68), 13 states have call predecessors, (68), 12 states have return successors, (68), 16 states have call predecessors, (68), 19 states have call successors, (68) Word has length 213 [2023-12-20 04:00:40,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:00:40,705 INFO L225 Difference]: With dead ends: 777 [2023-12-20 04:00:40,705 INFO L226 Difference]: Without dead ends: 493 [2023-12-20 04:00:40,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 485 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1629 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1114, Invalid=4586, Unknown=0, NotChecked=0, Total=5700 [2023-12-20 04:00:40,708 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 990 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 931 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 931 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.4s IncrementalHoareTripleChecker+Time [2023-12-20 04:00:40,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1027 Valid, 808 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [931 Valid, 2155 Invalid, 7 Unknown, 0 Unchecked, 30.4s Time] [2023-12-20 04:00:40,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2023-12-20 04:00:40,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 396. [2023-12-20 04:00:40,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 257 states have (on average 1.2568093385214008) internal successors, (323), 263 states have internal predecessors, (323), 94 states have call successors, (94), 42 states have call predecessors, (94), 44 states have return successors, (128), 90 states have call predecessors, (128), 94 states have call successors, (128) [2023-12-20 04:00:40,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 545 transitions. [2023-12-20 04:00:40,755 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 545 transitions. Word has length 213 [2023-12-20 04:00:40,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:00:40,756 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 545 transitions. [2023-12-20 04:00:40,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 4.0344827586206895) internal successors, (117), 25 states have internal predecessors, (117), 19 states have call successors, (68), 13 states have call predecessors, (68), 12 states have return successors, (68), 16 states have call predecessors, (68), 19 states have call successors, (68) [2023-12-20 04:00:40,756 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 545 transitions. [2023-12-20 04:00:40,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-20 04:00:40,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:00:40,760 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 9, 4, 4, 4, 4, 3, 3, 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] [2023-12-20 04:00:40,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-20 04:00:40,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:00:40,972 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:00:40,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:00:40,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1951132721, now seen corresponding path program 1 times [2023-12-20 04:00:40,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:00:40,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189388276] [2023-12-20 04:00:40,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:00:40,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:00:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:43,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:00:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 04:00:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 04:00:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:00:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 04:00:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-20 04:00:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-20 04:00:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-20 04:00:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-20 04:00:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-20 04:00:44,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-20 04:00:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-20 04:00:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-20 04:00:44,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 04:00:44,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-20 04:00:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-20 04:00:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-20 04:00:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-20 04:00:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-20 04:00:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-20 04:00:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-20 04:00:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-20 04:00:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-20 04:00:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-20 04:00:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 04:00:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-20 04:00:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-20 04:00:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:44,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1204 trivial. 0 not checked. [2023-12-20 04:00:44,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:00:44,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189388276] [2023-12-20 04:00:44,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189388276] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:00:44,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790588825] [2023-12-20 04:00:44,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:00:44,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:00:44,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:00:44,785 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:00:44,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 04:00:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:45,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-20 04:00:45,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:00:45,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-20 04:00:47,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:00:47,908 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:00:47,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 48 [2023-12-20 04:00:50,173 INFO L349 Elim1Store]: treesize reduction 64, result has 54.9 percent of original size [2023-12-20 04:00:50,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 104 [2023-12-20 04:01:16,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 360 proven. 4 refuted. 0 times theorem prover too weak. 843 trivial. 0 not checked. [2023-12-20 04:01:16,890 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:01:17,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-12-20 04:01:17,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2023-12-20 04:01:17,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-12-20 04:01:17,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-12-20 04:01:17,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-12-20 04:01:17,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-12-20 04:01:17,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1203 trivial. 0 not checked. [2023-12-20 04:01:17,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790588825] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:01:17,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:01:17,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 9] total 39 [2023-12-20 04:01:17,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410355946] [2023-12-20 04:01:17,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:01:17,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-20 04:01:17,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:01:17,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-20 04:01:17,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1335, Unknown=5, NotChecked=0, Total=1482 [2023-12-20 04:01:17,706 INFO L87 Difference]: Start difference. First operand 396 states and 545 transitions. Second operand has 39 states, 36 states have (on average 3.6944444444444446) internal successors, (133), 35 states have internal predecessors, (133), 19 states have call successors, (68), 13 states have call predecessors, (68), 14 states have return successors, (68), 17 states have call predecessors, (68), 19 states have call successors, (68) [2023-12-20 04:01:22,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:26,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:28,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:29,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:34,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:38,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:42,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:46,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:50,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:01:54,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:58,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:02,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:06,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:10,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:14,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:18,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:22,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:26,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:30,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:34,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:38,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:42,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:46,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:50,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:02:54,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:58,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:04,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:03:04,320 INFO L93 Difference]: Finished difference Result 796 states and 1152 transitions. [2023-12-20 04:03:04,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-20 04:03:04,320 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 36 states have (on average 3.6944444444444446) internal successors, (133), 35 states have internal predecessors, (133), 19 states have call successors, (68), 13 states have call predecessors, (68), 14 states have return successors, (68), 17 states have call predecessors, (68), 19 states have call successors, (68) Word has length 213 [2023-12-20 04:03:04,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:03:04,324 INFO L225 Difference]: With dead ends: 796 [2023-12-20 04:03:04,324 INFO L226 Difference]: Without dead ends: 459 [2023-12-20 04:03:04,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 464 SyntacticMatches, 7 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1133 ImplicationChecksByTransitivity, 33.6s TimeCoverageRelationStatistics Valid=846, Invalid=4551, Unknown=5, NotChecked=0, Total=5402 [2023-12-20 04:03:04,326 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 574 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 3004 mSolverCounterSat, 671 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 103.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 3699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 671 IncrementalHoareTripleChecker+Valid, 3004 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.9s IncrementalHoareTripleChecker+Time [2023-12-20 04:03:04,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 1259 Invalid, 3699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [671 Valid, 3004 Invalid, 24 Unknown, 0 Unchecked, 103.9s Time] [2023-12-20 04:03:04,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2023-12-20 04:03:04,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 428. [2023-12-20 04:03:04,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 274 states have (on average 1.2554744525547445) internal successors, (344), 281 states have internal predecessors, (344), 106 states have call successors, (106), 42 states have call predecessors, (106), 47 states have return successors, (166), 104 states have call predecessors, (166), 106 states have call successors, (166) [2023-12-20 04:03:04,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 616 transitions. [2023-12-20 04:03:04,397 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 616 transitions. Word has length 213 [2023-12-20 04:03:04,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:03:04,397 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 616 transitions. [2023-12-20 04:03:04,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 36 states have (on average 3.6944444444444446) internal successors, (133), 35 states have internal predecessors, (133), 19 states have call successors, (68), 13 states have call predecessors, (68), 14 states have return successors, (68), 17 states have call predecessors, (68), 19 states have call successors, (68) [2023-12-20 04:03:04,398 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 616 transitions. [2023-12-20 04:03:04,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-12-20 04:03:04,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:03:04,401 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 9, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:03:04,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-20 04:03:04,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:03:04,612 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:03:04,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:03:04,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1000798215, now seen corresponding path program 1 times [2023-12-20 04:03:04,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:03:04,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461740742] [2023-12-20 04:03:04,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:03:04,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:03:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:03:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 04:03:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 04:03:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-20 04:03:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-20 04:03:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 04:03:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 04:03:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:03:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 04:03:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-20 04:03:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 04:03:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 04:03:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-20 04:03:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-20 04:03:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-20 04:03:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-20 04:03:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-20 04:03:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-20 04:03:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-20 04:03:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-20 04:03:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-20 04:03:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-20 04:03:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-20 04:03:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 04:03:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-20 04:03:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-20 04:03:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 04:03:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-20 04:03:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 04:03:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-20 04:03:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-20 04:03:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:05,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1594 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1590 trivial. 0 not checked. [2023-12-20 04:03:05,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:03:05,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461740742] [2023-12-20 04:03:05,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461740742] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:03:05,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:03:05,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 04:03:05,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241312491] [2023-12-20 04:03:05,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:03:05,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 04:03:05,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:03:05,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 04:03:05,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-20 04:03:05,295 INFO L87 Difference]: Start difference. First operand 428 states and 616 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-20 04:03:09,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:13,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:13,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:03:13,926 INFO L93 Difference]: Finished difference Result 797 states and 1219 transitions. [2023-12-20 04:03:13,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 04:03:13,926 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 264 [2023-12-20 04:03:13,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:03:13,932 INFO L225 Difference]: With dead ends: 797 [2023-12-20 04:03:13,932 INFO L226 Difference]: Without dead ends: 440 [2023-12-20 04:03:13,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-20 04:03:13,934 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 56 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 95 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-12-20 04:03:13,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 325 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 273 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2023-12-20 04:03:13,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2023-12-20 04:03:14,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 432. [2023-12-20 04:03:14,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 278 states have (on average 1.2517985611510791) internal successors, (348), 285 states have internal predecessors, (348), 106 states have call successors, (106), 42 states have call predecessors, (106), 47 states have return successors, (166), 104 states have call predecessors, (166), 106 states have call successors, (166) [2023-12-20 04:03:14,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 620 transitions. [2023-12-20 04:03:14,028 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 620 transitions. Word has length 264 [2023-12-20 04:03:14,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:03:14,028 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 620 transitions. [2023-12-20 04:03:14,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-20 04:03:14,028 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 620 transitions. [2023-12-20 04:03:14,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-12-20 04:03:14,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:03:14,032 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 9, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:03:14,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 04:03:14,032 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:03:14,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:03:14,033 INFO L85 PathProgramCache]: Analyzing trace with hash -859381654, now seen corresponding path program 1 times [2023-12-20 04:03:14,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:03:14,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969242586] [2023-12-20 04:03:14,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:03:14,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:03:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:15,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:03:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:15,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:15,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:15,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 04:03:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:15,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 04:03:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:15,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:15,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-20 04:03:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:15,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:15,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:15,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-20 04:03:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 04:03:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 04:03:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:03:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 04:03:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-20 04:03:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-20 04:03:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-20 04:03:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-20 04:03:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-20 04:03:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-20 04:03:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-20 04:03:16,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-20 04:03:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-20 04:03:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-20 04:03:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-20 04:03:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 04:03:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-20 04:03:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-20 04:03:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-20 04:03:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-20 04:03:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-20 04:03:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-20 04:03:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-20 04:03:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-20 04:03:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-20 04:03:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-20 04:03:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:16,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1594 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1572 trivial. 0 not checked. [2023-12-20 04:03:16,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:03:16,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969242586] [2023-12-20 04:03:16,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969242586] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:03:16,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295345453] [2023-12-20 04:03:16,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:03:16,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:03:16,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:03:16,120 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:03:16,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 04:03:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:17,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 2263 conjuncts, 63 conjunts are in the unsatisfiable core [2023-12-20 04:03:17,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:03:17,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-20 04:03:17,229 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:03:17,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-12-20 04:03:17,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-20 04:03:17,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:03:17,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 21 [2023-12-20 04:03:17,493 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:03:17,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-12-20 04:03:17,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1594 backedges. 358 proven. 2 refuted. 0 times theorem prover too weak. 1234 trivial. 0 not checked. [2023-12-20 04:03:17,631 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:03:18,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295345453] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:03:18,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 04:03:18,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9] total 22 [2023-12-20 04:03:18,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138323681] [2023-12-20 04:03:18,437 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 04:03:18,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-20 04:03:18,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:03:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-20 04:03:18,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=847, Unknown=0, NotChecked=0, Total=992 [2023-12-20 04:03:18,439 INFO L87 Difference]: Start difference. First operand 432 states and 620 transitions. Second operand has 22 states, 21 states have (on average 5.857142857142857) internal successors, (123), 18 states have internal predecessors, (123), 12 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 11 states have call predecessors, (70), 12 states have call successors, (70) [2023-12-20 04:03:22,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:26,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:30,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:34,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:36,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:40,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:44,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:48,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:52,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:56,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:00,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:04,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:06,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:04:06,643 INFO L93 Difference]: Finished difference Result 610 states and 880 transitions. [2023-12-20 04:04:06,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 04:04:06,643 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.857142857142857) internal successors, (123), 18 states have internal predecessors, (123), 12 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 11 states have call predecessors, (70), 12 states have call successors, (70) Word has length 261 [2023-12-20 04:04:06,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:04:06,646 INFO L225 Difference]: With dead ends: 610 [2023-12-20 04:04:06,646 INFO L226 Difference]: Without dead ends: 445 [2023-12-20 04:04:06,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=428, Invalid=1734, Unknown=0, NotChecked=0, Total=2162 [2023-12-20 04:04:06,648 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 335 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 254 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.4s IncrementalHoareTripleChecker+Time [2023-12-20 04:04:06,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 674 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 1059 Invalid, 11 Unknown, 0 Unchecked, 47.4s Time] [2023-12-20 04:04:06,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2023-12-20 04:04:06,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 425. [2023-12-20 04:04:06,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 273 states have (on average 1.249084249084249) internal successors, (341), 279 states have internal predecessors, (341), 105 states have call successors, (105), 42 states have call predecessors, (105), 46 states have return successors, (163), 103 states have call predecessors, (163), 105 states have call successors, (163) [2023-12-20 04:04:06,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 609 transitions. [2023-12-20 04:04:06,708 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 609 transitions. Word has length 261 [2023-12-20 04:04:06,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:04:06,709 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 609 transitions. [2023-12-20 04:04:06,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.857142857142857) internal successors, (123), 18 states have internal predecessors, (123), 12 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 11 states have call predecessors, (70), 12 states have call successors, (70) [2023-12-20 04:04:06,709 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 609 transitions. [2023-12-20 04:04:06,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-20 04:04:06,712 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:04:06,713 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 9, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:04:06,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-20 04:04:06,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:04:06,925 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:04:06,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:04:06,925 INFO L85 PathProgramCache]: Analyzing trace with hash 255892580, now seen corresponding path program 1 times [2023-12-20 04:04:06,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:04:06,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581192628] [2023-12-20 04:04:06,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:04:06,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:04:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:04:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:04:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:04:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 04:04:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 04:04:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:04:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-20 04:04:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:04:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:04:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 04:04:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 04:04:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:04:09,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:04:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 04:04:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:04:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-20 04:04:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 04:04:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:04:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-20 04:04:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-20 04:04:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-20 04:04:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-20 04:04:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 04:04:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-20 04:04:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-20 04:04:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-20 04:04:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-20 04:04:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-20 04:04:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-20 04:04:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-20 04:04:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-20 04:04:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-20 04:04:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-20 04:04:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-20 04:04:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 04:04:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-20 04:04:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-20 04:04:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 04:04:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:09,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1456 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 1435 trivial. 0 not checked. [2023-12-20 04:04:09,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:04:09,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581192628] [2023-12-20 04:04:09,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581192628] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:04:09,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562100016] [2023-12-20 04:04:09,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:04:09,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:04:09,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:04:09,802 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:04:09,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-20 04:04:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:10,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 2119 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-20 04:04:10,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:04:10,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-20 04:04:11,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1456 backedges. 241 proven. 7 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2023-12-20 04:04:11,367 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:04:12,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1456 backedges. 4 proven. 30 refuted. 0 times theorem prover too weak. 1422 trivial. 0 not checked. [2023-12-20 04:04:12,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562100016] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:04:12,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:04:12,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 19, 8] total 37 [2023-12-20 04:04:12,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340019489] [2023-12-20 04:04:12,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:04:12,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-12-20 04:04:12,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:04:12,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-12-20 04:04:12,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1136, Unknown=0, NotChecked=0, Total=1332 [2023-12-20 04:04:12,143 INFO L87 Difference]: Start difference. First operand 425 states and 609 transitions. Second operand has 37 states, 32 states have (on average 4.4375) internal successors, (142), 30 states have internal predecessors, (142), 14 states have call successors, (80), 13 states have call predecessors, (80), 13 states have return successors, (72), 15 states have call predecessors, (72), 14 states have call successors, (72) [2023-12-20 04:04:16,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:20,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:24,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:28,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:32,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:36,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:40,408 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 [] [2023-12-20 04:04:47,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:04:47,798 INFO L93 Difference]: Finished difference Result 1220 states and 1801 transitions. [2023-12-20 04:04:47,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-12-20 04:04:47,799 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 32 states have (on average 4.4375) internal successors, (142), 30 states have internal predecessors, (142), 14 states have call successors, (80), 13 states have call predecessors, (80), 13 states have return successors, (72), 15 states have call predecessors, (72), 14 states have call successors, (72) Word has length 248 [2023-12-20 04:04:47,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:04:47,804 INFO L225 Difference]: With dead ends: 1220 [2023-12-20 04:04:47,804 INFO L226 Difference]: Without dead ends: 842 [2023-12-20 04:04:47,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 663 GetRequests, 567 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2675 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1761, Invalid=7551, Unknown=0, NotChecked=0, Total=9312 [2023-12-20 04:04:47,809 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 1360 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 3723 mSolverCounterSat, 1795 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 1604 SdHoareTripleChecker+Invalid, 5525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1795 IncrementalHoareTripleChecker+Valid, 3723 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.8s IncrementalHoareTripleChecker+Time [2023-12-20 04:04:47,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 1604 Invalid, 5525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1795 Valid, 3723 Invalid, 7 Unknown, 0 Unchecked, 31.8s Time] [2023-12-20 04:04:47,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2023-12-20 04:04:47,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 720. [2023-12-20 04:04:47,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 448 states have (on average 1.1607142857142858) internal successors, (520), 447 states have internal predecessors, (520), 200 states have call successors, (200), 53 states have call predecessors, (200), 71 states have return successors, (315), 219 states have call predecessors, (315), 200 states have call successors, (315) [2023-12-20 04:04:47,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1035 transitions. [2023-12-20 04:04:47,938 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1035 transitions. Word has length 248 [2023-12-20 04:04:47,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:04:47,938 INFO L495 AbstractCegarLoop]: Abstraction has 720 states and 1035 transitions. [2023-12-20 04:04:47,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 32 states have (on average 4.4375) internal successors, (142), 30 states have internal predecessors, (142), 14 states have call successors, (80), 13 states have call predecessors, (80), 13 states have return successors, (72), 15 states have call predecessors, (72), 14 states have call successors, (72) [2023-12-20 04:04:47,938 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1035 transitions. [2023-12-20 04:04:47,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-20 04:04:47,943 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:04:47,943 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 9, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:04:47,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-20 04:04:48,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:04:48,144 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:04:48,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:04:48,146 INFO L85 PathProgramCache]: Analyzing trace with hash -2025229338, now seen corresponding path program 1 times [2023-12-20 04:04:48,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:04:48,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880818958] [2023-12-20 04:04:48,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:04:48,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:04:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:49,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:04:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:49,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:04:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:49,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:04:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:49,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 04:04:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:49,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 04:04:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:49,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:04:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:49,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-20 04:04:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:04:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:04:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 04:04:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 04:04:50,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:04:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:04:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 04:04:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:04:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-20 04:04:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 04:04:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:04:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-20 04:04:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-20 04:04:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-20 04:04:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-20 04:04:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 04:04:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-20 04:04:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-20 04:04:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-20 04:04:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-20 04:04:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-20 04:04:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-12-20 04:04:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-12-20 04:04:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-12-20 04:04:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-20 04:04:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-20 04:04:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-20 04:04:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 04:04:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-12-20 04:04:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-12-20 04:04:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 04:04:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:50,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1456 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2023-12-20 04:04:50,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:04:50,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880818958] [2023-12-20 04:04:50,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880818958] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:04:50,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981876119] [2023-12-20 04:04:50,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:04:50,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:04:50,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:04:50,396 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:04:50,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-20 04:04:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:04:53,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 2108 conjuncts, 108 conjunts are in the unsatisfiable core [2023-12-20 04:04:53,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:04:53,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-20 04:04:54,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-20 04:04:54,600 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2023-12-20 04:04:54,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 37 [2023-12-20 04:04:54,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2023-12-20 04:04:56,849 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:04:56,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2023-12-20 04:04:57,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1456 backedges. 553 proven. 31 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2023-12-20 04:04:57,384 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:04:57,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:04:57,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2023-12-20 04:04:57,977 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-20 04:04:57,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-12-20 04:04:59,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981876119] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:04:59,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 04:04:59,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 37] total 51 [2023-12-20 04:04:59,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059517481] [2023-12-20 04:04:59,267 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 04:04:59,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-12-20 04:04:59,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:04:59,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-12-20 04:04:59,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=3672, Unknown=1, NotChecked=0, Total=4032 [2023-12-20 04:04:59,270 INFO L87 Difference]: Start difference. First operand 720 states and 1035 transitions. Second operand has 51 states, 44 states have (on average 2.9545454545454546) internal successors, (130), 43 states have internal predecessors, (130), 23 states have call successors, (67), 15 states have call predecessors, (67), 19 states have return successors, (68), 21 states have call predecessors, (68), 23 states have call successors, (68) [2023-12-20 04:05:03,361 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 [0] [2023-12-20 04:05:07,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:05:11,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:05:15,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:19,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:23,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:05:27,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:05:32,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:36,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:05:40,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:44,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:48,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:52,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:56,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:00,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:06:04,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:06:08,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:06:11,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:06:15,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:06:21,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:06:25,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:06:29,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:06:33,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:06:36,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:06:40,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:01,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:05,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.87s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:09,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.95s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:14,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:18,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:20,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:21,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:26,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:30,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:34,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:38,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:41,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:45,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.64s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:49,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:53,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:55,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:56,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:01,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:05,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:06,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:08,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:12,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:14,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:15,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:17,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:18,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:22,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:26,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:30,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:32,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:33,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:37,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:41,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:45,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:49,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.77s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:53,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:08:56,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:05,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:09,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:13,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:17,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:21,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:25,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:27,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:35,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:37,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:38,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:40,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:42,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:43,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:45,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:47,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:48,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:53,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:55,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:09:57,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:10:01,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:10:02,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:10:04,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:10:14,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:10:19,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:10:19,597 INFO L93 Difference]: Finished difference Result 2956 states and 4395 transitions. [2023-12-20 04:10:19,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2023-12-20 04:10:19,598 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 44 states have (on average 2.9545454545454546) internal successors, (130), 43 states have internal predecessors, (130), 23 states have call successors, (67), 15 states have call predecessors, (67), 19 states have return successors, (68), 21 states have call predecessors, (68), 23 states have call successors, (68) Word has length 248 [2023-12-20 04:10:19,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:10:19,609 INFO L225 Difference]: With dead ends: 2956 [2023-12-20 04:10:19,609 INFO L226 Difference]: Without dead ends: 2256 [2023-12-20 04:10:19,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 473 SyntacticMatches, 1 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15651 ImplicationChecksByTransitivity, 44.6s TimeCoverageRelationStatistics Valid=4008, Invalid=40273, Unknown=29, NotChecked=0, Total=44310 [2023-12-20 04:10:19,621 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 1930 mSDsluCounter, 4683 mSDsCounter, 0 mSdLazyCounter, 13832 mSolverCounterSat, 1651 mSolverCounterUnsat, 206 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 277.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 5039 SdHoareTripleChecker+Invalid, 15689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1651 IncrementalHoareTripleChecker+Valid, 13832 IncrementalHoareTripleChecker+Invalid, 206 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 279.0s IncrementalHoareTripleChecker+Time [2023-12-20 04:10:19,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1996 Valid, 5039 Invalid, 15689 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1651 Valid, 13832 Invalid, 206 Unknown, 0 Unchecked, 279.0s Time] [2023-12-20 04:10:19,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2023-12-20 04:10:19,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 1262. [2023-12-20 04:10:19,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 783 states have (on average 1.1507024265644956) internal successors, (901), 781 states have internal predecessors, (901), 349 states have call successors, (349), 101 states have call predecessors, (349), 129 states have return successors, (540), 379 states have call predecessors, (540), 349 states have call successors, (540) [2023-12-20 04:10:19,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1790 transitions. [2023-12-20 04:10:19,892 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 1790 transitions. Word has length 248 [2023-12-20 04:10:19,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:10:19,892 INFO L495 AbstractCegarLoop]: Abstraction has 1262 states and 1790 transitions. [2023-12-20 04:10:19,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 44 states have (on average 2.9545454545454546) internal successors, (130), 43 states have internal predecessors, (130), 23 states have call successors, (67), 15 states have call predecessors, (67), 19 states have return successors, (68), 21 states have call predecessors, (68), 23 states have call successors, (68) [2023-12-20 04:10:19,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 1790 transitions. [2023-12-20 04:10:19,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-12-20 04:10:19,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:10:19,900 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 9, 7, 7, 7, 7, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:10:19,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-20 04:10:20,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-20 04:10:20,113 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:10:20,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:10:20,114 INFO L85 PathProgramCache]: Analyzing trace with hash 276610470, now seen corresponding path program 1 times [2023-12-20 04:10:20,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:10:20,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976832597] [2023-12-20 04:10:20,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:10:20,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:10:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:10:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:10:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:10:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 04:10:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 04:10:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:10:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:10:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 04:10:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:10:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-20 04:10:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:10:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:10:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 04:10:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 04:10:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:10:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 04:10:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 04:10:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:10:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-20 04:10:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-20 04:10:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:10:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-20 04:10:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-20 04:10:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-20 04:10:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-20 04:10:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-20 04:10:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-20 04:10:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-20 04:10:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-20 04:10:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-20 04:10:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 04:10:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-20 04:10:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-20 04:10:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-20 04:10:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-20 04:10:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-20 04:10:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-20 04:10:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-20 04:10:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-20 04:10:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-20 04:10:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-20 04:10:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:22,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 15 proven. 15 refuted. 0 times theorem prover too weak. 1570 trivial. 0 not checked. [2023-12-20 04:10:22,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:10:22,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976832597] [2023-12-20 04:10:22,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976832597] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:10:22,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038141547] [2023-12-20 04:10:22,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:10:22,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:10:22,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:10:22,936 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:10:22,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-20 04:10:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:10:25,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 2255 conjuncts, 66 conjunts are in the unsatisfiable core [2023-12-20 04:10:25,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:10:26,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 588 proven. 46 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2023-12-20 04:10:26,948 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:10:28,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 24 proven. 57 refuted. 0 times theorem prover too weak. 1519 trivial. 0 not checked. [2023-12-20 04:10:28,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038141547] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:10:28,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:10:28,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 21, 22] total 65 [2023-12-20 04:10:28,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906977112] [2023-12-20 04:10:28,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:10:28,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2023-12-20 04:10:28,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:10:28,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2023-12-20 04:10:28,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=401, Invalid=3759, Unknown=0, NotChecked=0, Total=4160 [2023-12-20 04:10:28,961 INFO L87 Difference]: Start difference. First operand 1262 states and 1790 transitions. Second operand has 65 states, 60 states have (on average 2.85) internal successors, (171), 59 states have internal predecessors, (171), 35 states have call successors, (86), 17 states have call predecessors, (86), 25 states have return successors, (86), 31 states have call predecessors, (86), 35 states have call successors, (86) [2023-12-20 04:10:33,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:37,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:41,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:45,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:49,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:53,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:57,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:01,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:05,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:09,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:13,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:17,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:21,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:25,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:29,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:33,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:37,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:41,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:45,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:49,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:53,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:11:57,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:01,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:05,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:09,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:13,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:17,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:22,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:26,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:30,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:34,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:38,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-20 04:13:05,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 208 states. [2023-12-20 04:13:05,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 856 GetRequests, 588 SyntacticMatches, 0 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25482 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=7327, Invalid=65303, Unknown=0, NotChecked=0, Total=72630 [2023-12-20 04:13:05,903 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 4044 mSDsluCounter, 3285 mSDsCounter, 0 mSdLazyCounter, 10901 mSolverCounterSat, 3826 mSolverCounterUnsat, 32 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 136.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4049 SdHoareTripleChecker+Valid, 3513 SdHoareTripleChecker+Invalid, 14759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3826 IncrementalHoareTripleChecker+Valid, 10901 IncrementalHoareTripleChecker+Invalid, 32 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 137.7s IncrementalHoareTripleChecker+Time [2023-12-20 04:13:05,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4049 Valid, 3513 Invalid, 14759 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3826 Valid, 10901 Invalid, 32 Unknown, 0 Unchecked, 137.7s Time] [2023-12-20 04:13:05,906 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 04:13:05,926 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 [2023-12-20 04:13:05,926 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-20 04:13:05,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-20 04:13:06,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-20 04:13:06,113 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (1262states) and FLOYD_HOARE automaton (currently 208 states, 65 states before enhancement),while ReachableStatesComputation was computing reachable states (2078 states constructed, input type IntersectNwa). [2023-12-20 04:13:06,117 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:13:06,119 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 04:13:06,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 04:13:06 BoogieIcfgContainer [2023-12-20 04:13:06,121 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 04:13:06,121 INFO L158 Benchmark]: Toolchain (without parser) took 840393.82ms. Allocated memory was 260.0MB in the beginning and 386.9MB in the end (delta: 126.9MB). Free memory was 206.4MB in the beginning and 162.5MB in the end (delta: 43.9MB). Peak memory consumption was 171.9MB. Max. memory is 8.0GB. [2023-12-20 04:13:06,121 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 04:13:06,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 569.81ms. Allocated memory is still 260.0MB. Free memory was 206.4MB in the beginning and 179.1MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-12-20 04:13:06,121 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.41ms. Allocated memory is still 260.0MB. Free memory was 179.1MB in the beginning and 174.4MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-20 04:13:06,121 INFO L158 Benchmark]: Boogie Preprocessor took 98.46ms. Allocated memory is still 260.0MB. Free memory was 174.4MB in the beginning and 167.1MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-20 04:13:06,122 INFO L158 Benchmark]: RCFGBuilder took 4922.11ms. Allocated memory is still 260.0MB. Free memory was 167.1MB in the beginning and 177.1MB in the end (delta: -10.0MB). Peak memory consumption was 17.3MB. Max. memory is 8.0GB. [2023-12-20 04:13:06,122 INFO L158 Benchmark]: TraceAbstraction took 834732.81ms. Allocated memory was 260.0MB in the beginning and 386.9MB in the end (delta: 126.9MB). Free memory was 176.0MB in the beginning and 162.5MB in the end (delta: 13.6MB). Peak memory consumption was 140.0MB. Max. memory is 8.0GB. [2023-12-20 04:13:06,122 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 569.81ms. Allocated memory is still 260.0MB. Free memory was 206.4MB in the beginning and 179.1MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 65.41ms. Allocated memory is still 260.0MB. Free memory was 179.1MB in the beginning and 174.4MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 98.46ms. Allocated memory is still 260.0MB. Free memory was 174.4MB in the beginning and 167.1MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 4922.11ms. Allocated memory is still 260.0MB. Free memory was 167.1MB in the beginning and 177.1MB in the end (delta: -10.0MB). Peak memory consumption was 17.3MB. Max. memory is 8.0GB. * TraceAbstraction took 834732.81ms. Allocated memory was 260.0MB in the beginning and 386.9MB in the end (delta: 126.9MB). Free memory was 176.0MB in the beginning and 162.5MB in the end (delta: 13.6MB). Peak memory consumption was 140.0MB. 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 NwaCegarLoop was constructing difference of abstraction (1262states) and FLOYD_HOARE automaton (currently 208 states, 65 states before enhancement),while ReachableStatesComputation was computing reachable states (2078 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 834.7s, OverallIterations: 13, TraceHistogramMax: 27, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 756.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 300 mSolverCounterUnknown, 9906 SdHoareTripleChecker+Valid, 684.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9704 mSDsluCounter, 15934 SdHoareTripleChecker+Invalid, 680.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13768 mSDsCounter, 9381 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36182 IncrementalHoareTripleChecker+Invalid, 45863 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9381 mSolverCounterUnsat, 2166 mSDtfsCounter, 36182 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 300 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5125 GetRequests, 4304 SyntacticMatches, 12 SemanticMatches, 809 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47216 ImplicationChecksByTransitivity, 108.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1262occurred in iteration=12, InterpolantAutomatonStates: 373, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 1288 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 8.0s SatisfiabilityAnalysisTime, 60.9s InterpolantComputationTime, 4576 NumberOfCodeBlocks, 4456 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 5819 ConstructedInterpolants, 52 QuantifiedInterpolants, 19515 SizeOfPredicates, 75 NumberOfNonLiveVariables, 15196 ConjunctsInSsa, 398 ConjunctsInUnsatCore, 28 InterpolantComputations, 5 PerfectInterpolantSequences, 33786/34069 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