/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_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-pthread/cs_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 18:38:13,907 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 18:38:13,973 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 18:38:13,977 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 18:38:13,977 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 18:38:13,999 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 18:38:14,000 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 18:38:14,001 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 18:38:14,001 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 18:38:14,006 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 18:38:14,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 18:38:14,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 18:38:14,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 18:38:14,008 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 18:38:14,008 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 18:38:14,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 18:38:14,009 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 18:38:14,009 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 18:38:14,009 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 18:38:14,009 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 18:38:14,009 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 18:38:14,009 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 18:38:14,010 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 18:38:14,010 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 18:38:14,010 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 18:38:14,010 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 18:38:14,010 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 18:38:14,011 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 18:38:14,011 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 18:38:14,011 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 18:38:14,012 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 18:38:14,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 18:38:14,012 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 18:38:14,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 18:38:14,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:38:14,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 18:38:14,013 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 18:38:14,013 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 18:38:14,013 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 18:38:14,013 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 18:38:14,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 18:38:14,013 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 18:38:14,013 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 18:38:14,013 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 18:38:14,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 18:38:14,014 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 18:38:14,014 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 18:38:14,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 18:38:14,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 18:38:14,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 18:38:14,229 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 18:38:14,231 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 18:38:14,233 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_time_var_mutex.i [2023-12-16 18:38:15,361 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 18:38:15,572 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 18:38:15,572 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_time_var_mutex.i [2023-12-16 18:38:15,583 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6e891d9c/edf6f10a654b46068a65836d99a81aea/FLAG2f3cd5a5f [2023-12-16 18:38:15,593 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6e891d9c/edf6f10a654b46068a65836d99a81aea [2023-12-16 18:38:15,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 18:38:15,596 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 18:38:15,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 18:38:15,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 18:38:15,609 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 18:38:15,610 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:38:15" (1/1) ... [2023-12-16 18:38:15,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dd1700d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:38:15, skipping insertion in model container [2023-12-16 18:38:15,611 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:38:15" (1/1) ... [2023-12-16 18:38:15,663 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 18:38:15,932 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_time_var_mutex.i[23611,23624] [2023-12-16 18:38:16,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:38:16,072 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 18:38:16,100 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_time_var_mutex.i[23611,23624] [2023-12-16 18:38:16,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 18:38:16,192 INFO L206 MainTranslator]: Completed translation [2023-12-16 18:38:16,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:38:16 WrapperNode [2023-12-16 18:38:16,194 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 18:38:16,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 18:38:16,196 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 18:38:16,196 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 18:38:16,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:38:16" (1/1) ... [2023-12-16 18:38:16,240 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:38:16" (1/1) ... [2023-12-16 18:38:16,268 INFO L138 Inliner]: procedures = 149, calls = 317, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 517 [2023-12-16 18:38:16,269 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 18:38:16,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 18:38:16,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 18:38:16,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 18:38:16,277 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:38:16" (1/1) ... [2023-12-16 18:38:16,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:38:16" (1/1) ... [2023-12-16 18:38:16,283 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:38:16" (1/1) ... [2023-12-16 18:38:16,310 INFO L175 MemorySlicer]: Split 165 memory accesses to 18 slices as follows [2, 5, 13, 8, 8, 29, 21, 7, 8, 13, 8, 6, 5, 5, 5, 0, 17, 5]. 18 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 0, 0, 3, 3, 9, 9, 3, 3, 0, 3, 2, 0, 0, 0, 0, 6, 0]. The 41 writes are split as follows [0, 1, 1, 2, 2, 11, 6, 2, 2, 1, 2, 2, 1, 1, 1, 0, 5, 1]. [2023-12-16 18:38:16,310 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:38:16" (1/1) ... [2023-12-16 18:38:16,310 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:38:16" (1/1) ... [2023-12-16 18:38:16,350 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:38:16" (1/1) ... [2023-12-16 18:38:16,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:38:16" (1/1) ... [2023-12-16 18:38:16,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:38:16" (1/1) ... [2023-12-16 18:38:16,374 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:38:16" (1/1) ... [2023-12-16 18:38:16,381 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 18:38:16,382 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 18:38:16,382 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 18:38:16,382 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 18:38:16,396 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:38:16" (1/1) ... [2023-12-16 18:38:16,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 18:38:16,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 18:38:16,434 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 18:38:16,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 18:38:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-16 18:38:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-16 18:38:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-16 18:38:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-16 18:38:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-16 18:38:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-12-16 18:38:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2023-12-16 18:38:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2023-12-16 18:38:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2023-12-16 18:38:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2023-12-16 18:38:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#10 [2023-12-16 18:38:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#11 [2023-12-16 18:38:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#12 [2023-12-16 18:38:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#13 [2023-12-16 18:38:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#14 [2023-12-16 18:38:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#15 [2023-12-16 18:38:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#16 [2023-12-16 18:38:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#17 [2023-12-16 18:38:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-16 18:38:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-16 18:38:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-16 18:38:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-16 18:38:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-12-16 18:38:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-12-16 18:38:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-12-16 18:38:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-12-16 18:38:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2023-12-16 18:38:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2023-12-16 18:38:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2023-12-16 18:38:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2023-12-16 18:38:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2023-12-16 18:38:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2023-12-16 18:38:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2023-12-16 18:38:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2023-12-16 18:38:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2023-12-16 18:38:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#17 [2023-12-16 18:38:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 18:38:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 18:38:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 18:38:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-16 18:38:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-16 18:38:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-16 18:38:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-16 18:38:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-12-16 18:38:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-12-16 18:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-12-16 18:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-12-16 18:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-12-16 18:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-12-16 18:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-12-16 18:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-12-16 18:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-12-16 18:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-12-16 18:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-12-16 18:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-12-16 18:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-12-16 18:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-12-16 18:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-12-16 18:38:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_init [2023-12-16 18:38:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_init [2023-12-16 18:38:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-12-16 18:38:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-12-16 18:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-16 18:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-16 18:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-16 18:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-12-16 18:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-12-16 18:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-12-16 18:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-12-16 18:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-12-16 18:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-12-16 18:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-12-16 18:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-12-16 18:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-12-16 18:38:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-12-16 18:38:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-12-16 18:38:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-12-16 18:38:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-12-16 18:38:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-12-16 18:38:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-12-16 18:38:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-12-16 18:38:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-12-16 18:38:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-16 18:38:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-16 18:38:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-16 18:38:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-16 18:38:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-16 18:38:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-16 18:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-16 18:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-12-16 18:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2023-12-16 18:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2023-12-16 18:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2023-12-16 18:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2023-12-16 18:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#10 [2023-12-16 18:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#11 [2023-12-16 18:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#12 [2023-12-16 18:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#13 [2023-12-16 18:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#14 [2023-12-16 18:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#15 [2023-12-16 18:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#16 [2023-12-16 18:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#17 [2023-12-16 18:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-16 18:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-16 18:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-16 18:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-16 18:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-16 18:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-12-16 18:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-12-16 18:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-12-16 18:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-12-16 18:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2023-12-16 18:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2023-12-16 18:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2023-12-16 18:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2023-12-16 18:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2023-12-16 18:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2023-12-16 18:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2023-12-16 18:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2023-12-16 18:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2023-12-16 18:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#17 [2023-12-16 18:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-12-16 18:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-12-16 18:38:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-12-16 18:38:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-12-16 18:38:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-12-16 18:38:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-12-16 18:38:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-12-16 18:38:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-12-16 18:38:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-12-16 18:38:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-12-16 18:38:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-12-16 18:38:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-12-16 18:38:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-12-16 18:38:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-12-16 18:38:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-12-16 18:38:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-12-16 18:38:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-12-16 18:38:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-12-16 18:38:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 18:38:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 18:38:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 18:38:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 18:38:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 18:38:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-16 18:38:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-16 18:38:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-16 18:38:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-16 18:38:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-16 18:38:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-16 18:38:16,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-16 18:38:16,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-16 18:38:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-16 18:38:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-16 18:38:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-16 18:38:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-16 18:38:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-16 18:38:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-16 18:38:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-16 18:38:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-12-16 18:38:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-12-16 18:38:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-12-16 18:38:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2023-12-16 18:38:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2023-12-16 18:38:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2023-12-16 18:38:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2023-12-16 18:38:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2023-12-16 18:38:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2023-12-16 18:38:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2023-12-16 18:38:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#12 [2023-12-16 18:38:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#13 [2023-12-16 18:38:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#14 [2023-12-16 18:38:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#15 [2023-12-16 18:38:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#16 [2023-12-16 18:38:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#17 [2023-12-16 18:38:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-12-16 18:38:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-12-16 18:38:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_destroy [2023-12-16 18:38:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_destroy [2023-12-16 18:38:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 18:38:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 18:38:16,782 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 18:38:16,783 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 18:38:22,922 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 18:38:22,964 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 18:38:22,964 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 18:38:22,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:38:22 BoogieIcfgContainer [2023-12-16 18:38:22,965 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 18:38:22,967 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 18:38:22,967 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 18:38:22,969 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 18:38:22,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:38:15" (1/3) ... [2023-12-16 18:38:22,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5428be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:38:22, skipping insertion in model container [2023-12-16 18:38:22,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:38:16" (2/3) ... [2023-12-16 18:38:22,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5428be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:38:22, skipping insertion in model container [2023-12-16 18:38:22,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:38:22" (3/3) ... [2023-12-16 18:38:22,972 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_time_var_mutex.i [2023-12-16 18:38:22,983 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 18:38:22,983 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 18:38:23,026 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 18:38:23,032 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;@4a7fcb2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 18:38:23,032 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 18:38:23,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 84 states have (on average 1.369047619047619) internal successors, (115), 85 states have internal predecessors, (115), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-16 18:38:23,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 18:38:23,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:38:23,061 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:38:23,062 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:38:23,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:38:23,069 INFO L85 PathProgramCache]: Analyzing trace with hash -702418532, now seen corresponding path program 1 times [2023-12-16 18:38:23,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:38:23,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1721914575] [2023-12-16 18:38:23,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:38:23,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:23,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:38:23,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:38:23,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 18:38:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:38:23,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 18:38:23,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:38:23,649 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2023-12-16 18:38:23,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:38:23,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:38:23,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1721914575] [2023-12-16 18:38:23,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1721914575] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:38:23,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:38:23,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 18:38:23,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176787384] [2023-12-16 18:38:23,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:38:23,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 18:38:23,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:38:23,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 18:38:23,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 18:38:23,679 INFO L87 Difference]: Start difference. First operand has 138 states, 84 states have (on average 1.369047619047619) internal successors, (115), 85 states have internal predecessors, (115), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-16 18:38:23,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:38:23,826 INFO L93 Difference]: Finished difference Result 275 states and 448 transitions. [2023-12-16 18:38:23,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 18:38:23,829 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 143 [2023-12-16 18:38:23,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:38:23,835 INFO L225 Difference]: With dead ends: 275 [2023-12-16 18:38:23,836 INFO L226 Difference]: Without dead ends: 136 [2023-12-16 18:38:23,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 18:38:23,841 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 18:38:23,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 194 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 18:38:23,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-12-16 18:38:23,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2023-12-16 18:38:23,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 83 states have (on average 1.3132530120481927) internal successors, (109), 83 states have internal predecessors, (109), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-16 18:38:23,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 199 transitions. [2023-12-16 18:38:23,879 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 199 transitions. Word has length 143 [2023-12-16 18:38:23,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:38:23,879 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 199 transitions. [2023-12-16 18:38:23,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-16 18:38:23,879 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 199 transitions. [2023-12-16 18:38:23,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 18:38:23,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:38:23,895 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:38:23,907 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 18:38:24,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:24,105 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:38:24,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:38:24,106 INFO L85 PathProgramCache]: Analyzing trace with hash 726937456, now seen corresponding path program 1 times [2023-12-16 18:38:24,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:38:24,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789523103] [2023-12-16 18:38:24,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:38:24,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:24,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:38:24,109 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:38:24,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 18:38:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:38:24,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:38:24,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:38:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-16 18:38:24,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:38:24,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:38:24,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1789523103] [2023-12-16 18:38:24,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1789523103] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:38:24,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:38:24,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 18:38:24,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768090073] [2023-12-16 18:38:24,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:38:24,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:38:24,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:38:24,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:38:24,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:38:24,647 INFO L87 Difference]: Start difference. First operand 136 states and 199 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-16 18:38:26,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:38:27,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:38:27,081 INFO L93 Difference]: Finished difference Result 271 states and 397 transitions. [2023-12-16 18:38:27,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:38:27,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 143 [2023-12-16 18:38:27,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:38:27,083 INFO L225 Difference]: With dead ends: 271 [2023-12-16 18:38:27,083 INFO L226 Difference]: Without dead ends: 139 [2023-12-16 18:38:27,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:38:27,084 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 3 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:38:27,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 381 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 18:38:27,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-12-16 18:38:27,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2023-12-16 18:38:27,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 84 states have internal predecessors, (110), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-16 18:38:27,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 200 transitions. [2023-12-16 18:38:27,096 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 200 transitions. Word has length 143 [2023-12-16 18:38:27,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:38:27,097 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 200 transitions. [2023-12-16 18:38:27,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-16 18:38:27,097 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 200 transitions. [2023-12-16 18:38:27,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-16 18:38:27,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:38:27,099 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:38:27,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 18:38:27,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:27,308 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:38:27,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:38:27,312 INFO L85 PathProgramCache]: Analyzing trace with hash -274563922, now seen corresponding path program 1 times [2023-12-16 18:38:27,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:38:27,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570604391] [2023-12-16 18:38:27,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:38:27,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:27,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:38:27,314 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:38:27,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 18:38:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:38:27,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 18:38:27,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:38:27,805 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-16 18:38:27,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:38:27,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:38:27,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570604391] [2023-12-16 18:38:27,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [570604391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:38:27,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:38:27,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:38:27,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324386424] [2023-12-16 18:38:27,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:38:27,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:38:27,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:38:27,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:38:27,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:38:27,807 INFO L87 Difference]: Start difference. First operand 137 states and 200 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-16 18:38:27,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:38:27,997 INFO L93 Difference]: Finished difference Result 273 states and 400 transitions. [2023-12-16 18:38:28,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:38:28,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 146 [2023-12-16 18:38:28,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:38:28,014 INFO L225 Difference]: With dead ends: 273 [2023-12-16 18:38:28,014 INFO L226 Difference]: Without dead ends: 138 [2023-12-16 18:38:28,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:38:28,015 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 0 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:38:28,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 384 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:38:28,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-12-16 18:38:28,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-12-16 18:38:28,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 85 states have (on average 1.3058823529411765) internal successors, (111), 85 states have internal predecessors, (111), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-16 18:38:28,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 201 transitions. [2023-12-16 18:38:28,039 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 201 transitions. Word has length 146 [2023-12-16 18:38:28,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:38:28,039 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 201 transitions. [2023-12-16 18:38:28,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-16 18:38:28,039 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 201 transitions. [2023-12-16 18:38:28,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 18:38:28,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:38:28,041 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:38:28,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 18:38:28,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:28,242 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:38:28,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:38:28,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1482572654, now seen corresponding path program 1 times [2023-12-16 18:38:28,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:38:28,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512500403] [2023-12-16 18:38:28,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:38:28,244 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:28,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:38:28,247 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:38:28,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 18:38:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:38:28,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:38:28,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:38:28,803 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-16 18:38:28,803 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:38:28,971 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-16 18:38:28,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:38:28,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512500403] [2023-12-16 18:38:28,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512500403] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:38:28,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:38:28,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 18:38:28,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264618307] [2023-12-16 18:38:28,972 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:38:28,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:38:28,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:38:28,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:38:28,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:38:28,973 INFO L87 Difference]: Start difference. First operand 138 states and 201 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, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-16 18:38:30,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:38:30,402 INFO L93 Difference]: Finished difference Result 276 states and 404 transitions. [2023-12-16 18:38:30,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:38:30,416 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, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 147 [2023-12-16 18:38:30,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:38:30,418 INFO L225 Difference]: With dead ends: 276 [2023-12-16 18:38:30,418 INFO L226 Difference]: Without dead ends: 140 [2023-12-16 18:38:30,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:38:30,419 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 0 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 18:38:30,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 766 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 18:38:30,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-16 18:38:30,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2023-12-16 18:38:30,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 87 states have (on average 1.2988505747126438) internal successors, (113), 87 states have internal predecessors, (113), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-16 18:38:30,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 203 transitions. [2023-12-16 18:38:30,427 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 203 transitions. Word has length 147 [2023-12-16 18:38:30,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:38:30,428 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 203 transitions. [2023-12-16 18:38:30,428 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, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-16 18:38:30,428 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 203 transitions. [2023-12-16 18:38:30,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-16 18:38:30,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:38:30,429 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:38:30,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 18:38:30,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:30,645 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:38:30,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:38:30,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1531359214, now seen corresponding path program 2 times [2023-12-16 18:38:30,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:38:30,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850948417] [2023-12-16 18:38:30,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 18:38:30,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:30,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:38:30,649 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:38:30,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 18:38:31,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 18:38:31,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 18:38:31,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 18:38:31,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:38:31,153 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2023-12-16 18:38:31,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:38:31,153 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:38:31,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850948417] [2023-12-16 18:38:31,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850948417] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:38:31,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:38:31,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 18:38:31,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957736604] [2023-12-16 18:38:31,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:38:31,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 18:38:31,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:38:31,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 18:38:31,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:38:31,155 INFO L87 Difference]: Start difference. First operand 140 states and 203 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-16 18:38:31,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:38:31,349 INFO L93 Difference]: Finished difference Result 267 states and 388 transitions. [2023-12-16 18:38:31,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 18:38:31,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 149 [2023-12-16 18:38:31,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:38:31,351 INFO L225 Difference]: With dead ends: 267 [2023-12-16 18:38:31,351 INFO L226 Difference]: Without dead ends: 140 [2023-12-16 18:38:31,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 18:38:31,352 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 0 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:38:31,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 381 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 18:38:31,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-16 18:38:31,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2023-12-16 18:38:31,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 87 states have (on average 1.2873563218390804) internal successors, (112), 87 states have internal predecessors, (112), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-16 18:38:31,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 202 transitions. [2023-12-16 18:38:31,363 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 202 transitions. Word has length 149 [2023-12-16 18:38:31,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:38:31,363 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 202 transitions. [2023-12-16 18:38:31,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-16 18:38:31,363 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 202 transitions. [2023-12-16 18:38:31,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-16 18:38:31,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:38:31,385 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:38:31,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 18:38:31,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:31,595 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:38:31,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:38:31,596 INFO L85 PathProgramCache]: Analyzing trace with hash -374062390, now seen corresponding path program 1 times [2023-12-16 18:38:31,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:38:31,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900527095] [2023-12-16 18:38:31,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:38:31,597 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:31,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:38:31,598 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:38:31,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 18:38:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:38:32,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 18:38:32,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:38:32,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2023-12-16 18:38:32,344 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:38:32,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2023-12-16 18:38:32,566 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:38:32,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900527095] [2023-12-16 18:38:32,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900527095] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:38:32,566 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:38:32,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2023-12-16 18:38:32,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037823776] [2023-12-16 18:38:32,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:38:32,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:38:32,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:38:32,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:38:32,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:38:32,568 INFO L87 Difference]: Start difference. First operand 140 states and 202 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2023-12-16 18:38:35,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:38:36,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:38:38,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:38:38,137 INFO L93 Difference]: Finished difference Result 284 states and 410 transitions. [2023-12-16 18:38:38,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 18:38:38,143 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 165 [2023-12-16 18:38:38,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:38:38,144 INFO L225 Difference]: With dead ends: 284 [2023-12-16 18:38:38,144 INFO L226 Difference]: Without dead ends: 152 [2023-12-16 18:38:38,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:38:38,145 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 6 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-16 18:38:38,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 946 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-16 18:38:38,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-16 18:38:38,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2023-12-16 18:38:38,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 99 states have (on average 1.2727272727272727) internal successors, (126), 99 states have internal predecessors, (126), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-16 18:38:38,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 216 transitions. [2023-12-16 18:38:38,155 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 216 transitions. Word has length 165 [2023-12-16 18:38:38,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:38:38,156 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 216 transitions. [2023-12-16 18:38:38,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2023-12-16 18:38:38,156 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 216 transitions. [2023-12-16 18:38:38,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-16 18:38:38,158 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:38:38,158 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 9, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:38:38,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 18:38:38,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:38,376 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:38:38,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:38:38,376 INFO L85 PathProgramCache]: Analyzing trace with hash -2132273266, now seen corresponding path program 2 times [2023-12-16 18:38:38,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:38:38,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133303802] [2023-12-16 18:38:38,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 18:38:38,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:38,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:38:38,379 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:38:38,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 18:38:38,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 18:38:38,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 18:38:38,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 18:38:38,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:38:40,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1087 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2023-12-16 18:38:40,804 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:38:40,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:38:40,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133303802] [2023-12-16 18:38:40,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [133303802] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:38:40,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:38:40,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 18:38:40,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423149586] [2023-12-16 18:38:40,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:38:40,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 18:38:40,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:38:40,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 18:38:40,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 18:38:40,806 INFO L87 Difference]: Start difference. First operand 152 states and 216 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-12-16 18:38:44,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:38:44,132 INFO L93 Difference]: Finished difference Result 302 states and 449 transitions. [2023-12-16 18:38:44,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 18:38:44,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 177 [2023-12-16 18:38:44,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:38:44,136 INFO L225 Difference]: With dead ends: 302 [2023-12-16 18:38:44,136 INFO L226 Difference]: Without dead ends: 252 [2023-12-16 18:38:44,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 18:38:44,137 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 171 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-16 18:38:44,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 540 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-16 18:38:44,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-12-16 18:38:44,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2023-12-16 18:38:44,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 160 states have (on average 1.325) internal successors, (212), 162 states have internal predecessors, (212), 74 states have call successors, (74), 14 states have call predecessors, (74), 17 states have return successors, (89), 75 states have call predecessors, (89), 74 states have call successors, (89) [2023-12-16 18:38:44,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 375 transitions. [2023-12-16 18:38:44,159 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 375 transitions. Word has length 177 [2023-12-16 18:38:44,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:38:44,160 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 375 transitions. [2023-12-16 18:38:44,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-12-16 18:38:44,160 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 375 transitions. [2023-12-16 18:38:44,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-12-16 18:38:44,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:38:44,163 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 9, 8, 8, 8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:38:44,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 18:38:44,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:44,364 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:38:44,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:38:44,365 INFO L85 PathProgramCache]: Analyzing trace with hash -535516060, now seen corresponding path program 1 times [2023-12-16 18:38:44,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:38:44,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525928617] [2023-12-16 18:38:44,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:38:44,366 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:38:44,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:38:44,367 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:38:44,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 18:38:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:38:45,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 1409 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 18:38:45,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:38:46,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1938 backedges. 704 proven. 6 refuted. 0 times theorem prover too weak. 1228 trivial. 0 not checked. [2023-12-16 18:38:46,038 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 18:38:47,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1938 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1932 trivial. 0 not checked. [2023-12-16 18:38:47,434 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:38:47,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525928617] [2023-12-16 18:38:47,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [525928617] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 18:38:47,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 18:38:47,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2023-12-16 18:38:47,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639300205] [2023-12-16 18:38:47,434 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 18:38:47,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:38:47,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:38:47,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:38:47,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:38:47,436 INFO L87 Difference]: Start difference. First operand 252 states and 375 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 7 states have call successors, (68), 4 states have call predecessors, (68), 6 states have return successors, (68), 7 states have call predecessors, (68), 7 states have call successors, (68) [2023-12-16 18:38:51,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:38:55,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:39:05,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:39:05,350 INFO L93 Difference]: Finished difference Result 696 states and 1065 transitions. [2023-12-16 18:39:05,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 18:39:05,350 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 7 states have call successors, (68), 4 states have call predecessors, (68), 6 states have return successors, (68), 7 states have call predecessors, (68), 7 states have call successors, (68) Word has length 281 [2023-12-16 18:39:05,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:39:05,354 INFO L225 Difference]: With dead ends: 696 [2023-12-16 18:39:05,355 INFO L226 Difference]: Without dead ends: 467 [2023-12-16 18:39:05,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 556 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-16 18:39:05,356 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 165 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 112 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2023-12-16 18:39:05,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 743 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 667 Invalid, 2 Unknown, 0 Unchecked, 17.7s Time] [2023-12-16 18:39:05,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-12-16 18:39:05,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 460. [2023-12-16 18:39:05,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 289 states have (on average 1.3321799307958477) internal successors, (385), 295 states have internal predecessors, (385), 129 states have call successors, (129), 34 states have call predecessors, (129), 41 states have return successors, (171), 130 states have call predecessors, (171), 129 states have call successors, (171) [2023-12-16 18:39:05,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 685 transitions. [2023-12-16 18:39:05,395 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 685 transitions. Word has length 281 [2023-12-16 18:39:05,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:39:05,396 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 685 transitions. [2023-12-16 18:39:05,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 7 states have call successors, (68), 4 states have call predecessors, (68), 6 states have return successors, (68), 7 states have call predecessors, (68), 7 states have call successors, (68) [2023-12-16 18:39:05,397 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 685 transitions. [2023-12-16 18:39:05,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-12-16 18:39:05,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:39:05,401 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 9, 8, 8, 8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:39:05,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 18:39:05,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:39:05,615 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:39:05,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:39:05,616 INFO L85 PathProgramCache]: Analyzing trace with hash -494485402, now seen corresponding path program 1 times [2023-12-16 18:39:05,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:39:05,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493159559] [2023-12-16 18:39:05,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:39:05,617 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:39:05,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:39:05,618 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:39:05,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 18:39:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:39:07,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 1473 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 18:39:07,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:39:08,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1938 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 1789 trivial. 0 not checked. [2023-12-16 18:39:08,634 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:39:08,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:39:08,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493159559] [2023-12-16 18:39:08,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1493159559] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:39:08,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:39:08,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 18:39:08,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243242173] [2023-12-16 18:39:08,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:39:08,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 18:39:08,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:39:08,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 18:39:08,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 18:39:08,636 INFO L87 Difference]: Start difference. First operand 460 states and 685 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-16 18:39:17,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 18:39:17,574 INFO L93 Difference]: Finished difference Result 1169 states and 1756 transitions. [2023-12-16 18:39:17,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 18:39:17,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) Word has length 281 [2023-12-16 18:39:17,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 18:39:17,588 INFO L225 Difference]: With dead ends: 1169 [2023-12-16 18:39:17,588 INFO L226 Difference]: Without dead ends: 732 [2023-12-16 18:39:17,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-16 18:39:17,593 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 290 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-12-16 18:39:17,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 536 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2023-12-16 18:39:17,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2023-12-16 18:39:17,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 706. [2023-12-16 18:39:17,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 438 states have (on average 1.2146118721461188) internal successors, (532), 441 states have internal predecessors, (532), 201 states have call successors, (201), 50 states have call predecessors, (201), 66 states have return successors, (286), 214 states have call predecessors, (286), 201 states have call successors, (286) [2023-12-16 18:39:17,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 1019 transitions. [2023-12-16 18:39:17,693 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 1019 transitions. Word has length 281 [2023-12-16 18:39:17,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 18:39:17,693 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 1019 transitions. [2023-12-16 18:39:17,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-16 18:39:17,693 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 1019 transitions. [2023-12-16 18:39:17,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-12-16 18:39:17,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 18:39:17,700 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 9, 8, 8, 8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 18:39:17,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 18:39:17,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:39:17,921 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 18:39:17,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 18:39:17,922 INFO L85 PathProgramCache]: Analyzing trace with hash -836164316, now seen corresponding path program 1 times [2023-12-16 18:39:17,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 18:39:17,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1308652550] [2023-12-16 18:39:17,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 18:39:17,923 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 18:39:17,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 18:39:17,924 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 18:39:17,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 18:39:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 18:39:20,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 1464 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 18:39:20,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 18:39:20,426 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 23 treesize of output 22 [2023-12-16 18:39:20,568 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 18:39:20,568 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 19 treesize of output 9 [2023-12-16 18:39:20,872 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 18:39:20,873 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 29 treesize of output 13 [2023-12-16 18:39:20,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1938 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 1789 trivial. 0 not checked. [2023-12-16 18:39:20,968 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 18:39:20,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 18:39:20,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1308652550] [2023-12-16 18:39:20,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1308652550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 18:39:20,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 18:39:20,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 18:39:20,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041076019] [2023-12-16 18:39:20,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 18:39:20,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 18:39:20,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 18:39:20,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 18:39:20,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:39:20,971 INFO L87 Difference]: Start difference. First operand 706 states and 1019 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2023-12-16 18:39:25,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-16 18:39:28,814 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:39:28,841 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 18:39:29,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 18:39:29,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 18:39:30,042 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 18:39:30,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 18:39:30,061 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-12-16 18:39:30,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2023-12-16 18:39:30,062 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 18:39:30,063 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-16 18:39:30,066 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1] [2023-12-16 18:39:30,067 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 18:39:30,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-16 18:39:30,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:39:30 BoogieIcfgContainer [2023-12-16 18:39:30,085 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 18:39:30,086 INFO L158 Benchmark]: Toolchain (without parser) took 74490.28ms. Allocated memory was 219.2MB in the beginning and 263.2MB in the end (delta: 44.0MB). Free memory was 164.5MB in the beginning and 117.9MB in the end (delta: 46.7MB). Peak memory consumption was 91.7MB. Max. memory is 8.0GB. [2023-12-16 18:39:30,086 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 182.5MB. Free memory was 128.8MB in the beginning and 128.7MB in the end (delta: 86.6kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 18:39:30,086 INFO L158 Benchmark]: CACSL2BoogieTranslator took 598.30ms. Allocated memory is still 219.2MB. Free memory was 164.5MB in the beginning and 134.7MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-12-16 18:39:30,086 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.09ms. Allocated memory is still 219.2MB. Free memory was 134.7MB in the beginning and 130.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 18:39:30,087 INFO L158 Benchmark]: Boogie Preprocessor took 112.31ms. Allocated memory is still 219.2MB. Free memory was 130.5MB in the beginning and 120.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 18:39:30,087 INFO L158 Benchmark]: RCFGBuilder took 6582.81ms. Allocated memory is still 219.2MB. Free memory was 120.5MB in the beginning and 114.9MB in the end (delta: 5.6MB). Peak memory consumption was 17.1MB. Max. memory is 8.0GB. [2023-12-16 18:39:30,087 INFO L158 Benchmark]: TraceAbstraction took 67118.18ms. Allocated memory was 219.2MB in the beginning and 263.2MB in the end (delta: 44.0MB). Free memory was 114.4MB in the beginning and 117.9MB in the end (delta: -3.5MB). Peak memory consumption was 41.0MB. Max. memory is 8.0GB. [2023-12-16 18:39:30,088 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 182.5MB. Free memory was 128.8MB in the beginning and 128.7MB in the end (delta: 86.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 598.30ms. Allocated memory is still 219.2MB. Free memory was 164.5MB in the beginning and 134.7MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 73.09ms. Allocated memory is still 219.2MB. Free memory was 134.7MB in the beginning and 130.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 112.31ms. Allocated memory is still 219.2MB. Free memory was 130.5MB in the beginning and 120.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * RCFGBuilder took 6582.81ms. Allocated memory is still 219.2MB. Free memory was 120.5MB in the beginning and 114.9MB in the end (delta: 5.6MB). Peak memory consumption was 17.1MB. Max. memory is 8.0GB. * TraceAbstraction took 67118.18ms. Allocated memory was 219.2MB in the beginning and 263.2MB in the end (delta: 44.0MB). Free memory was 114.4MB in the beginning and 117.9MB in the end (delta: -3.5MB). Peak memory consumption was 41.0MB. 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 executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 138 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.1s, OverallIterations: 10, TraceHistogramMax: 30, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 49.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 735 SdHoareTripleChecker+Valid, 47.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 635 mSDsluCounter, 4887 SdHoareTripleChecker+Invalid, 46.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3156 mSDsCounter, 432 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1889 IncrementalHoareTripleChecker+Invalid, 2326 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 432 mSolverCounterUnsat, 1731 mSDtfsCounter, 1889 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2502 GetRequests, 2466 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=9, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 35 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 4.2s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 1913 NumberOfCodeBlocks, 1620 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2493 ConstructedInterpolants, 0 QuantifiedInterpolants, 3766 SizeOfPredicates, 10 NumberOfNonLiveVariables, 8465 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 16419/16433 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