/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/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-8.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 15:42:22,699 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 15:42:22,762 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 15:42:22,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 15:42:22,766 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 15:42:22,792 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 15:42:22,792 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 15:42:22,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 15:42:22,793 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 15:42:22,796 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 15:42:22,796 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 15:42:22,796 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 15:42:22,797 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 15:42:22,797 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 15:42:22,798 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 15:42:22,798 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 15:42:22,798 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 15:42:22,798 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 15:42:22,799 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 15:42:22,799 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 15:42:22,799 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 15:42:22,800 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 15:42:22,800 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 15:42:22,800 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 15:42:22,800 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 15:42:22,800 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 15:42:22,800 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 15:42:22,801 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 15:42:22,801 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 15:42:22,801 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 15:42:22,802 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 15:42:22,802 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 15:42:22,802 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 15:42:22,802 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 15:42:22,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:42:22,802 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 15:42:22,802 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 15:42:22,803 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 15:42:22,803 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 15:42:22,803 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 15:42:22,803 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 15:42:22,803 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 15:42:22,803 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 15:42:22,803 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 15:42:22,804 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 15:42:22,804 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 15:42:22,804 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 15:42:22,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 15:42:23,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 15:42:23,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 15:42:23,006 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 15:42:23,006 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 15:42:23,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-8.i [2023-12-16 15:42:23,995 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 15:42:24,176 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 15:42:24,176 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-8.i [2023-12-16 15:42:24,183 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d4a54978/2b3659b175ef414d9f72a2338e4d5f05/FLAG04426454d [2023-12-16 15:42:24,198 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d4a54978/2b3659b175ef414d9f72a2338e4d5f05 [2023-12-16 15:42:24,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 15:42:24,203 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 15:42:24,204 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 15:42:24,205 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 15:42:24,208 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 15:42:24,208 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:42:24" (1/1) ... [2023-12-16 15:42:24,209 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc50143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:42:24, skipping insertion in model container [2023-12-16 15:42:24,209 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:42:24" (1/1) ... [2023-12-16 15:42:24,238 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 15:42:24,340 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-8.i[916,929] [2023-12-16 15:42:24,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:42:24,395 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 15:42:24,406 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-8.i[916,929] [2023-12-16 15:42:24,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:42:24,453 INFO L206 MainTranslator]: Completed translation [2023-12-16 15:42:24,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:42:24 WrapperNode [2023-12-16 15:42:24,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 15:42:24,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 15:42:24,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 15:42:24,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 15:42:24,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:42:24" (1/1) ... [2023-12-16 15:42:24,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:42:24" (1/1) ... [2023-12-16 15:42:24,499 INFO L138 Inliner]: procedures = 33, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 462 [2023-12-16 15:42:24,499 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 15:42:24,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 15:42:24,500 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 15:42:24,500 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 15:42:24,507 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:42:24" (1/1) ... [2023-12-16 15:42:24,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:42:24" (1/1) ... [2023-12-16 15:42:24,512 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:42:24" (1/1) ... [2023-12-16 15:42:24,533 INFO L175 MemorySlicer]: Split 126 memory accesses to 5 slices as follows [2, 29, 48, 22, 25]. 38 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 6, 2, 2]. The 19 writes are split as follows [0, 6, 7, 4, 2]. [2023-12-16 15:42:24,534 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:42:24" (1/1) ... [2023-12-16 15:42:24,534 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:42:24" (1/1) ... [2023-12-16 15:42:24,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:42:24" (1/1) ... [2023-12-16 15:42:24,555 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:42:24" (1/1) ... [2023-12-16 15:42:24,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:42:24" (1/1) ... [2023-12-16 15:42:24,559 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:42:24" (1/1) ... [2023-12-16 15:42:24,563 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 15:42:24,564 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 15:42:24,564 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 15:42:24,564 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 15:42:24,565 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:42:24" (1/1) ... [2023-12-16 15:42:24,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:42:24,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 15:42:24,602 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 15:42:24,624 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 15:42:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 15:42:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-16 15:42:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-16 15:42:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-16 15:42:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-16 15:42:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-16 15:42:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 15:42:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 15:42:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 15:42:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 15:42:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 15:42:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-16 15:42:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-16 15:42:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-12-16 15:42:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-12-16 15:42:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-12-16 15:42:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-12-16 15:42:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-12-16 15:42:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-12-16 15:42:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-12-16 15:42:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2023-12-16 15:42:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-16 15:42:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-16 15:42:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-16 15:42:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-16 15:42:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-12-16 15:42:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-12-16 15:42:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-12-16 15:42:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-12-16 15:42:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-12-16 15:42:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2023-12-16 15:42:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2023-12-16 15:42:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2023-12-16 15:42:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2023-12-16 15:42:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2023-12-16 15:42:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2023-12-16 15:42:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 15:42:24,634 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 15:42:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 15:42:24,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 15:42:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-16 15:42:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-16 15:42:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-16 15:42:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-16 15:42:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-16 15:42:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-16 15:42:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-16 15:42:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-16 15:42:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-16 15:42:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-12-16 15:42:24,787 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 15:42:24,789 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 15:42:29,791 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 15:42:29,842 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 15:42:29,843 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 15:42:29,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:42:29 BoogieIcfgContainer [2023-12-16 15:42:29,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 15:42:29,844 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 15:42:29,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 15:42:29,847 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 15:42:29,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:42:24" (1/3) ... [2023-12-16 15:42:29,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d82d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:42:29, skipping insertion in model container [2023-12-16 15:42:29,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:42:24" (2/3) ... [2023-12-16 15:42:29,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d82d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:42:29, skipping insertion in model container [2023-12-16 15:42:29,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:42:29" (3/3) ... [2023-12-16 15:42:29,848 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-8.i [2023-12-16 15:42:29,859 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 15:42:29,859 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 15:42:29,888 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 15:42:29,892 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;@7554df82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 15:42:29,893 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 15:42:29,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 76 states have (on average 1.4473684210526316) internal successors, (110), 77 states have internal predecessors, (110), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 15:42:29,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 15:42:29,905 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:42:29,905 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:29,905 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:42:29,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:42:29,909 INFO L85 PathProgramCache]: Analyzing trace with hash 859824916, now seen corresponding path program 1 times [2023-12-16 15:42:29,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:42:29,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302863639] [2023-12-16 15:42:29,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:42:29,918 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 15:42:29,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:42:29,919 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 15:42:29,920 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 15:42:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:42:30,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 15:42:30,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:42:30,341 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2023-12-16 15:42:30,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:42:30,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:42:30,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302863639] [2023-12-16 15:42:30,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302863639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:42:30,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:42:30,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 15:42:30,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982519281] [2023-12-16 15:42:30,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:42:30,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 15:42:30,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:42:30,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 15:42:30,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 15:42:30,364 INFO L87 Difference]: Start difference. First operand has 93 states, 76 states have (on average 1.4473684210526316) internal successors, (110), 77 states have internal predecessors, (110), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:42:30,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:42:30,411 INFO L93 Difference]: Finished difference Result 183 states and 288 transitions. [2023-12-16 15:42:30,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 15:42:30,413 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2023-12-16 15:42:30,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:42:30,418 INFO L225 Difference]: With dead ends: 183 [2023-12-16 15:42:30,418 INFO L226 Difference]: Without dead ends: 91 [2023-12-16 15:42:30,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 117 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 15:42:30,422 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 15:42:30,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 15:42:30,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-12-16 15:42:30,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-12-16 15:42:30,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 75 states have (on average 1.4) internal successors, (105), 75 states have internal predecessors, (105), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 15:42:30,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 133 transitions. [2023-12-16 15:42:30,448 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 133 transitions. Word has length 118 [2023-12-16 15:42:30,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:42:30,448 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 133 transitions. [2023-12-16 15:42:30,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:42:30,448 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 133 transitions. [2023-12-16 15:42:30,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 15:42:30,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:42:30,450 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:30,461 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 15:42:30,654 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 15:42:30,655 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:42:30,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:42:30,656 INFO L85 PathProgramCache]: Analyzing trace with hash -274666624, now seen corresponding path program 1 times [2023-12-16 15:42:30,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:42:30,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603622556] [2023-12-16 15:42:30,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:42:30,657 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 15:42:30,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:42:30,658 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 15:42:30,659 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 15:42:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:42:31,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 15:42:31,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:42:31,103 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:42:31,103 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:42:31,103 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:42:31,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603622556] [2023-12-16 15:42:31,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603622556] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:42:31,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:42:31,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 15:42:31,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127612957] [2023-12-16 15:42:31,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:42:31,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:42:31,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:42:31,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:42:31,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:42:31,106 INFO L87 Difference]: Start difference. First operand 91 states and 133 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:42:31,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:42:31,374 INFO L93 Difference]: Finished difference Result 202 states and 295 transitions. [2023-12-16 15:42:31,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 15:42:31,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2023-12-16 15:42:31,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:42:31,377 INFO L225 Difference]: With dead ends: 202 [2023-12-16 15:42:31,377 INFO L226 Difference]: Without dead ends: 112 [2023-12-16 15:42:31,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 15:42:31,379 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 46 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 15:42:31,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 494 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 15:42:31,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-16 15:42:31,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 95. [2023-12-16 15:42:31,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 79 states have (on average 1.379746835443038) internal successors, (109), 79 states have internal predecessors, (109), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 15:42:31,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 137 transitions. [2023-12-16 15:42:31,387 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 137 transitions. Word has length 118 [2023-12-16 15:42:31,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:42:31,388 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 137 transitions. [2023-12-16 15:42:31,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:42:31,388 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 137 transitions. [2023-12-16 15:42:31,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 15:42:31,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:42:31,390 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:31,401 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 (3)] Forceful destruction successful, exit code 0 [2023-12-16 15:42:31,596 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 15:42:31,599 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:42:31,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:42:31,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1084013250, now seen corresponding path program 1 times [2023-12-16 15:42:31,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:42:31,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580312844] [2023-12-16 15:42:31,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:42:31,600 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 15:42:31,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:42:31,601 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 15:42:31,616 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 15:42:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:42:31,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 15:42:31,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:42:32,035 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:42:32,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:42:32,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:42:32,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1580312844] [2023-12-16 15:42:32,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1580312844] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:42:32,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:42:32,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 15:42:32,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118473096] [2023-12-16 15:42:32,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:42:32,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 15:42:32,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:42:32,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 15:42:32,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:42:32,037 INFO L87 Difference]: Start difference. First operand 95 states and 137 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:42:32,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:42:32,365 INFO L93 Difference]: Finished difference Result 209 states and 300 transitions. [2023-12-16 15:42:32,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 15:42:32,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2023-12-16 15:42:32,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:42:32,368 INFO L225 Difference]: With dead ends: 209 [2023-12-16 15:42:32,368 INFO L226 Difference]: Without dead ends: 115 [2023-12-16 15:42:32,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-16 15:42:32,370 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 49 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 15:42:32,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 611 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 15:42:32,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-16 15:42:32,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 97. [2023-12-16 15:42:32,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 81 states have internal predecessors, (111), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 15:42:32,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 139 transitions. [2023-12-16 15:42:32,376 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 139 transitions. Word has length 118 [2023-12-16 15:42:32,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:42:32,376 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 139 transitions. [2023-12-16 15:42:32,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:42:32,377 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 139 transitions. [2023-12-16 15:42:32,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 15:42:32,378 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:42:32,378 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:32,389 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 15:42:32,587 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 15:42:32,587 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:42:32,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:42:32,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1026754948, now seen corresponding path program 1 times [2023-12-16 15:42:32,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:42:32,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357775074] [2023-12-16 15:42:32,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:42:32,588 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 15:42:32,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:42:32,589 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 15:42:32,607 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 15:42:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:42:32,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 15:42:32,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:42:33,014 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:42:33,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:42:33,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:42:33,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357775074] [2023-12-16 15:42:33,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357775074] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:42:33,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:42:33,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 15:42:33,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385462749] [2023-12-16 15:42:33,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:42:33,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 15:42:33,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:42:33,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 15:42:33,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 15:42:33,016 INFO L87 Difference]: Start difference. First operand 97 states and 139 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:42:33,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:42:33,461 INFO L93 Difference]: Finished difference Result 212 states and 300 transitions. [2023-12-16 15:42:33,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 15:42:33,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2023-12-16 15:42:33,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:42:33,462 INFO L225 Difference]: With dead ends: 212 [2023-12-16 15:42:33,463 INFO L226 Difference]: Without dead ends: 116 [2023-12-16 15:42:33,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2023-12-16 15:42:33,464 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 40 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 15:42:33,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 722 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 15:42:33,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-12-16 15:42:33,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 99. [2023-12-16 15:42:33,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 83 states have internal predecessors, (113), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 15:42:33,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2023-12-16 15:42:33,469 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 118 [2023-12-16 15:42:33,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:42:33,469 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2023-12-16 15:42:33,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:42:33,470 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2023-12-16 15:42:33,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 15:42:33,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:42:33,471 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:33,480 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 (5)] Forceful destruction successful, exit code 0 [2023-12-16 15:42:33,679 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 15:42:33,680 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:42:33,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:42:33,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1026695366, now seen corresponding path program 1 times [2023-12-16 15:42:33,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:42:33,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001261865] [2023-12-16 15:42:33,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:42:33,681 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 15:42:33,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:42:33,682 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 15:42:33,685 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 15:42:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:42:33,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 15:42:33,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:42:34,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2023-12-16 15:42:34,411 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-12-16 15:42:34,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:42:34,411 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:42:34,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001261865] [2023-12-16 15:42:34,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001261865] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:42:34,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:42:34,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 15:42:34,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208041411] [2023-12-16 15:42:34,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:42:34,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 15:42:34,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:42:34,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 15:42:34,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:42:34,413 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:42:37,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:42:37,276 INFO L93 Difference]: Finished difference Result 203 states and 290 transitions. [2023-12-16 15:42:37,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 15:42:37,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2023-12-16 15:42:37,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:42:37,278 INFO L225 Difference]: With dead ends: 203 [2023-12-16 15:42:37,278 INFO L226 Difference]: Without dead ends: 105 [2023-12-16 15:42:37,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-16 15:42:37,279 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 112 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 15:42:37,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 398 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 15:42:37,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-16 15:42:37,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 99. [2023-12-16 15:42:37,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 83 states have (on average 1.3493975903614457) internal successors, (112), 83 states have internal predecessors, (112), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 15:42:37,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 140 transitions. [2023-12-16 15:42:37,285 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 140 transitions. Word has length 118 [2023-12-16 15:42:37,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:42:37,285 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 140 transitions. [2023-12-16 15:42:37,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:42:37,285 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 140 transitions. [2023-12-16 15:42:37,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-16 15:42:37,286 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:42:37,286 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:37,298 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 15:42:37,495 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 15:42:37,495 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:42:37,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:42:37,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1394602112, now seen corresponding path program 1 times [2023-12-16 15:42:37,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:42:37,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102843617] [2023-12-16 15:42:37,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:42:37,496 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 15:42:37,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:42:37,497 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 15:42:37,498 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 15:42:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:42:37,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 15:42:37,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:42:38,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 43 [2023-12-16 15:42:38,371 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-12-16 15:42:38,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:42:38,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:42:38,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102843617] [2023-12-16 15:42:38,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102843617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:42:38,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:42:38,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 15:42:38,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794262790] [2023-12-16 15:42:38,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:42:38,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 15:42:38,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:42:38,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 15:42:38,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:42:38,374 INFO L87 Difference]: Start difference. First operand 99 states and 140 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:42:41,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:42:41,520 INFO L93 Difference]: Finished difference Result 203 states and 288 transitions. [2023-12-16 15:42:41,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 15:42:41,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2023-12-16 15:42:41,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:42:41,521 INFO L225 Difference]: With dead ends: 203 [2023-12-16 15:42:41,521 INFO L226 Difference]: Without dead ends: 105 [2023-12-16 15:42:41,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-16 15:42:41,522 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 101 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-16 15:42:41,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 392 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-16 15:42:41,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-16 15:42:41,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 99. [2023-12-16 15:42:41,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 83 states have (on average 1.3373493975903614) internal successors, (111), 83 states have internal predecessors, (111), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 15:42:41,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 139 transitions. [2023-12-16 15:42:41,537 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 139 transitions. Word has length 120 [2023-12-16 15:42:41,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:42:41,537 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 139 transitions. [2023-12-16 15:42:41,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:42:41,538 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 139 transitions. [2023-12-16 15:42:41,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 15:42:41,538 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:42:41,538 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:41,556 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 15:42:41,747 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 15:42:41,747 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:42:41,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:42:41,748 INFO L85 PathProgramCache]: Analyzing trace with hash -815794950, now seen corresponding path program 1 times [2023-12-16 15:42:41,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:42:41,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111843088] [2023-12-16 15:42:41,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:42:41,748 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 15:42:41,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:42:41,749 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 15:42:41,750 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 15:42:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:42:42,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 15:42:42,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:42:42,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2023-12-16 15:42:42,695 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-12-16 15:42:42,695 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:42:42,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:42:42,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111843088] [2023-12-16 15:42:42,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [111843088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:42:42,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:42:42,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 15:42:42,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687790668] [2023-12-16 15:42:42,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:42:42,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 15:42:42,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:42:42,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 15:42:42,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:42:42,697 INFO L87 Difference]: Start difference. First operand 99 states and 139 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:42:45,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:42:45,570 INFO L93 Difference]: Finished difference Result 203 states and 286 transitions. [2023-12-16 15:42:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 15:42:45,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 122 [2023-12-16 15:42:45,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:42:45,572 INFO L225 Difference]: With dead ends: 203 [2023-12-16 15:42:45,572 INFO L226 Difference]: Without dead ends: 105 [2023-12-16 15:42:45,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-16 15:42:45,573 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 94 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 15:42:45,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 387 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 15:42:45,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-16 15:42:45,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 99. [2023-12-16 15:42:45,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 83 states have (on average 1.3253012048192772) internal successors, (110), 83 states have internal predecessors, (110), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 15:42:45,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2023-12-16 15:42:45,578 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 122 [2023-12-16 15:42:45,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:42:45,578 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2023-12-16 15:42:45,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 15:42:45,578 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2023-12-16 15:42:45,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-16 15:42:45,579 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:42:45,579 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:45,593 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 15:42:45,793 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 15:42:45,793 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:42:45,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:42:45,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1115133760, now seen corresponding path program 1 times [2023-12-16 15:42:45,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:42:45,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617611903] [2023-12-16 15:42:45,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:42:45,795 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 15:42:45,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:42:45,796 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 15:42:45,796 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 15:42:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:42:46,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 15:42:46,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:42:46,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-12-16 15:42:46,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-12-16 15:42:46,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-12-16 15:42:46,241 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:42:46,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:42:46,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:42:46,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617611903] [2023-12-16 15:42:46,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617611903] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:42:46,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:42:46,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 15:42:46,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995335844] [2023-12-16 15:42:46,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:42:46,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 15:42:46,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:42:46,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 15:42:46,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 15:42:46,243 INFO L87 Difference]: Start difference. First operand 99 states and 138 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:42:47,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:42:47,130 INFO L93 Difference]: Finished difference Result 246 states and 344 transitions. [2023-12-16 15:42:47,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 15:42:47,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 124 [2023-12-16 15:42:47,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:42:47,131 INFO L225 Difference]: With dead ends: 246 [2023-12-16 15:42:47,131 INFO L226 Difference]: Without dead ends: 148 [2023-12-16 15:42:47,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:42:47,132 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 117 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 15:42:47,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 431 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 15:42:47,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-16 15:42:47,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2023-12-16 15:42:47,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 118 states have (on average 1.2966101694915255) internal successors, (153), 119 states have internal predecessors, (153), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 15:42:47,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 205 transitions. [2023-12-16 15:42:47,142 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 205 transitions. Word has length 124 [2023-12-16 15:42:47,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:42:47,144 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 205 transitions. [2023-12-16 15:42:47,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:42:47,144 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 205 transitions. [2023-12-16 15:42:47,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-16 15:42:47,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:42:47,145 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:47,157 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 15:42:47,352 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 15:42:47,352 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:42:47,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:42:47,353 INFO L85 PathProgramCache]: Analyzing trace with hash -879010946, now seen corresponding path program 1 times [2023-12-16 15:42:47,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:42:47,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189143199] [2023-12-16 15:42:47,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:42:47,353 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 15:42:47,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:42:47,354 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 15:42:47,356 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 15:42:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:42:47,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-16 15:42:47,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:42:47,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-16 15:42:48,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2023-12-16 15:42:49,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2023-12-16 15:42:50,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2023-12-16 15:42:54,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 60 [2023-12-16 15:42:54,705 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:42:54,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 96 treesize of output 52 [2023-12-16 15:42:54,847 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 28 proven. 216 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-16 15:42:54,848 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:42:55,174 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:42:55,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:42:55,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189143199] [2023-12-16 15:42:55,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189143199] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 15:42:55,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 15:42:55,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 19 [2023-12-16 15:42:55,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005399961] [2023-12-16 15:42:55,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:42:55,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:42:55,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:42:55,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:42:55,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2023-12-16 15:42:55,176 INFO L87 Difference]: Start difference. First operand 147 states and 205 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:42:55,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:42:55,533 INFO L93 Difference]: Finished difference Result 308 states and 422 transitions. [2023-12-16 15:42:55,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 15:42:55,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 124 [2023-12-16 15:42:55,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:42:55,535 INFO L225 Difference]: With dead ends: 308 [2023-12-16 15:42:55,535 INFO L226 Difference]: Without dead ends: 206 [2023-12-16 15:42:55,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2023-12-16 15:42:55,536 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 86 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 15:42:55,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 522 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 15:42:55,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-12-16 15:42:55,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 151. [2023-12-16 15:42:55,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 122 states have (on average 1.2950819672131149) internal successors, (158), 123 states have internal predecessors, (158), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 15:42:55,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 210 transitions. [2023-12-16 15:42:55,542 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 210 transitions. Word has length 124 [2023-12-16 15:42:55,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:42:55,543 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 210 transitions. [2023-12-16 15:42:55,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:42:55,543 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 210 transitions. [2023-12-16 15:42:55,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-16 15:42:55,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:42:55,544 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:55,555 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 15:42:55,748 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 15:42:55,748 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:42:55,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:42:55,749 INFO L85 PathProgramCache]: Analyzing trace with hash -277924285, now seen corresponding path program 1 times [2023-12-16 15:42:55,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:42:55,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284982459] [2023-12-16 15:42:55,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:42:55,749 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 15:42:55,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:42:55,752 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 15:42:55,756 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 15:42:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:42:56,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 15:42:56,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:42:57,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2023-12-16 15:42:57,113 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 214 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-16 15:42:57,113 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:42:57,733 INFO L349 Elim1Store]: treesize reduction 4, result has 69.2 percent of original size [2023-12-16 15:42:57,733 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 22 treesize of output 21 [2023-12-16 15:42:57,979 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 21 proven. 18 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-16 15:42:57,979 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:42:57,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284982459] [2023-12-16 15:42:57,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284982459] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 15:42:57,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 15:42:57,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2023-12-16 15:42:57,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964315656] [2023-12-16 15:42:57,979 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 15:42:57,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 15:42:57,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:42:57,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 15:42:57,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 15:42:57,981 INFO L87 Difference]: Start difference. First operand 151 states and 210 transitions. Second operand has 11 states, 9 states have (on average 8.0) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2023-12-16 15:42:59,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:42:59,208 INFO L93 Difference]: Finished difference Result 271 states and 366 transitions. [2023-12-16 15:42:59,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 15:42:59,209 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.0) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) Word has length 126 [2023-12-16 15:42:59,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:42:59,213 INFO L225 Difference]: With dead ends: 271 [2023-12-16 15:42:59,213 INFO L226 Difference]: Without dead ends: 165 [2023-12-16 15:42:59,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 241 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-16 15:42:59,214 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 143 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 15:42:59,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 389 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 15:42:59,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-12-16 15:42:59,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 159. [2023-12-16 15:42:59,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 128 states have (on average 1.2734375) internal successors, (163), 129 states have internal predecessors, (163), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 15:42:59,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 215 transitions. [2023-12-16 15:42:59,253 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 215 transitions. Word has length 126 [2023-12-16 15:42:59,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:42:59,254 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 215 transitions. [2023-12-16 15:42:59,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.0) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 2 states have call predecessors, (28), 4 states have call successors, (28) [2023-12-16 15:42:59,254 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 215 transitions. [2023-12-16 15:42:59,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-16 15:42:59,255 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:42:59,255 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:59,280 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 15:42:59,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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 15:42:59,480 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:42:59,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:42:59,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1961317795, now seen corresponding path program 1 times [2023-12-16 15:42:59,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:42:59,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533116025] [2023-12-16 15:42:59,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:42:59,482 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 15:42:59,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:42:59,483 INFO L229 MonitoredProcess]: Starting monitored process 12 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 15:42:59,485 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 (12)] Waiting until timeout for monitored process [2023-12-16 15:42:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:42:59,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 15:42:59,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:42:59,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-12-16 15:42:59,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-16 15:43:00,017 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:43:00,017 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 38 treesize of output 30 [2023-12-16 15:43:00,084 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:43:00,084 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:43:00,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:43:00,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1533116025] [2023-12-16 15:43:00,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1533116025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:43:00,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:43:00,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 15:43:00,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567401324] [2023-12-16 15:43:00,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:43:00,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 15:43:00,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:43:00,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 15:43:00,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:43:00,085 INFO L87 Difference]: Start difference. First operand 159 states and 215 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:43:01,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:43:01,451 INFO L93 Difference]: Finished difference Result 355 states and 474 transitions. [2023-12-16 15:43:01,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 15:43:01,451 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 126 [2023-12-16 15:43:01,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:43:01,453 INFO L225 Difference]: With dead ends: 355 [2023-12-16 15:43:01,453 INFO L226 Difference]: Without dead ends: 245 [2023-12-16 15:43:01,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-16 15:43:01,454 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 247 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 15:43:01,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 372 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 15:43:01,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2023-12-16 15:43:01,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 242. [2023-12-16 15:43:01,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 194 states have (on average 1.2628865979381443) internal successors, (245), 196 states have internal predecessors, (245), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 15:43:01,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 325 transitions. [2023-12-16 15:43:01,474 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 325 transitions. Word has length 126 [2023-12-16 15:43:01,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:43:01,475 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 325 transitions. [2023-12-16 15:43:01,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:43:01,475 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 325 transitions. [2023-12-16 15:43:01,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-16 15:43:01,476 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:43:01,476 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:01,487 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 (12)] Ended with exit code 0 [2023-12-16 15:43:01,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /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 15:43:01,680 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:43:01,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:43:01,680 INFO L85 PathProgramCache]: Analyzing trace with hash -382007412, now seen corresponding path program 1 times [2023-12-16 15:43:01,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:43:01,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067609528] [2023-12-16 15:43:01,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:43:01,681 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 15:43:01,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:43:01,682 INFO L229 MonitoredProcess]: Starting monitored process 13 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 15:43:01,682 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 (13)] Waiting until timeout for monitored process [2023-12-16 15:43:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:43:02,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 15:43:02,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:43:02,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-12-16 15:43:02,219 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:43:02,219 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:43:02,220 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:43:02,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067609528] [2023-12-16 15:43:02,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067609528] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:43:02,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:43:02,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 15:43:02,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852091811] [2023-12-16 15:43:02,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:43:02,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 15:43:02,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:43:02,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 15:43:02,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:43:02,221 INFO L87 Difference]: Start difference. First operand 242 states and 325 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:43:02,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:43:02,951 INFO L93 Difference]: Finished difference Result 468 states and 624 transitions. [2023-12-16 15:43:02,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 15:43:02,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 126 [2023-12-16 15:43:02,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:43:02,953 INFO L225 Difference]: With dead ends: 468 [2023-12-16 15:43:02,953 INFO L226 Difference]: Without dead ends: 275 [2023-12-16 15:43:02,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-12-16 15:43:02,954 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 156 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 15:43:02,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 786 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 15:43:02,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-12-16 15:43:02,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 248. [2023-12-16 15:43:02,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 200 states have (on average 1.255) internal successors, (251), 202 states have internal predecessors, (251), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 15:43:02,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 331 transitions. [2023-12-16 15:43:02,969 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 331 transitions. Word has length 126 [2023-12-16 15:43:02,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:43:02,969 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 331 transitions. [2023-12-16 15:43:02,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:43:02,970 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 331 transitions. [2023-12-16 15:43:02,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 15:43:02,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:43:02,971 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:02,980 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 (13)] Forceful destruction successful, exit code 0 [2023-12-16 15:43:03,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /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 15:43:03,180 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:43:03,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:43:03,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1934108023, now seen corresponding path program 1 times [2023-12-16 15:43:03,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:43:03,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119275731] [2023-12-16 15:43:03,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:43:03,181 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 15:43:03,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:43:03,182 INFO L229 MonitoredProcess]: Starting monitored process 14 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 15:43:03,205 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 (14)] Waiting until timeout for monitored process [2023-12-16 15:43:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:43:03,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 15:43:03,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:43:03,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-12-16 15:43:03,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-16 15:43:03,803 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:43:03,803 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 37 treesize of output 29 [2023-12-16 15:43:03,862 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:43:03,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:43:03,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:43:03,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119275731] [2023-12-16 15:43:03,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2119275731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:43:03,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:43:03,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 15:43:03,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122903687] [2023-12-16 15:43:03,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:43:03,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 15:43:03,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:43:03,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 15:43:03,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:43:03,864 INFO L87 Difference]: Start difference. First operand 248 states and 331 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:43:05,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:43:05,563 INFO L93 Difference]: Finished difference Result 450 states and 595 transitions. [2023-12-16 15:43:05,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 15:43:05,565 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), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 128 [2023-12-16 15:43:05,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:43:05,566 INFO L225 Difference]: With dead ends: 450 [2023-12-16 15:43:05,566 INFO L226 Difference]: Without dead ends: 251 [2023-12-16 15:43:05,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-16 15:43:05,567 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 258 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 15:43:05,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 587 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 15:43:05,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-12-16 15:43:05,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 248. [2023-12-16 15:43:05,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 200 states have (on average 1.25) internal successors, (250), 202 states have internal predecessors, (250), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 15:43:05,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 330 transitions. [2023-12-16 15:43:05,583 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 330 transitions. Word has length 128 [2023-12-16 15:43:05,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:43:05,583 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 330 transitions. [2023-12-16 15:43:05,583 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), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:43:05,583 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 330 transitions. [2023-12-16 15:43:05,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 15:43:05,585 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:43:05,585 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:05,594 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 (14)] Forceful destruction successful, exit code 0 [2023-12-16 15:43:05,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /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 15:43:05,793 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:43:05,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:43:05,793 INFO L85 PathProgramCache]: Analyzing trace with hash -204476743, now seen corresponding path program 1 times [2023-12-16 15:43:05,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:43:05,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667386591] [2023-12-16 15:43:05,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:43:05,794 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 15:43:05,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:43:05,795 INFO L229 MonitoredProcess]: Starting monitored process 15 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 15:43:05,828 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 (15)] Waiting until timeout for monitored process [2023-12-16 15:43:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:43:06,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 15:43:06,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:43:09,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2023-12-16 15:43:10,013 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:43:10,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 27 [2023-12-16 15:43:10,065 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-12-16 15:43:10,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:43:10,292 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:43:10,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:43:10,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [667386591] [2023-12-16 15:43:10,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [667386591] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 15:43:10,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 15:43:10,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2023-12-16 15:43:10,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949963087] [2023-12-16 15:43:10,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:43:10,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:43:10,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:43:10,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:43:10,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-16 15:43:10,294 INFO L87 Difference]: Start difference. First operand 248 states and 330 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:43:10,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:43:10,918 INFO L93 Difference]: Finished difference Result 255 states and 338 transitions. [2023-12-16 15:43:10,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 15:43:10,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 128 [2023-12-16 15:43:10,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:43:10,920 INFO L225 Difference]: With dead ends: 255 [2023-12-16 15:43:10,920 INFO L226 Difference]: Without dead ends: 253 [2023-12-16 15:43:10,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 15:43:10,921 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 103 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 15:43:10,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 600 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 15:43:10,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-12-16 15:43:10,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 252. [2023-12-16 15:43:10,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 204 states have (on average 1.2450980392156863) internal successors, (254), 206 states have internal predecessors, (254), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 15:43:10,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 334 transitions. [2023-12-16 15:43:10,937 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 334 transitions. Word has length 128 [2023-12-16 15:43:10,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:43:10,937 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 334 transitions. [2023-12-16 15:43:10,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:43:10,937 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 334 transitions. [2023-12-16 15:43:10,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 15:43:10,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:43:10,938 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:10,952 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 (15)] Forceful destruction successful, exit code 0 [2023-12-16 15:43:11,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /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 15:43:11,148 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:43:11,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:43:11,149 INFO L85 PathProgramCache]: Analyzing trace with hash -204417161, now seen corresponding path program 1 times [2023-12-16 15:43:11,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:43:11,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967179439] [2023-12-16 15:43:11,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:43:11,149 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 15:43:11,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:43:11,152 INFO L229 MonitoredProcess]: Starting monitored process 16 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 15:43:11,168 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 (16)] Waiting until timeout for monitored process [2023-12-16 15:43:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:43:11,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-16 15:43:11,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:43:13,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-12-16 15:43:13,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2023-12-16 15:43:13,948 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-16 15:43:13,948 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:43:13,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:43:13,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967179439] [2023-12-16 15:43:13,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967179439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:43:13,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:43:13,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 15:43:13,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680386735] [2023-12-16 15:43:13,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:43:13,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 15:43:13,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:43:13,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 15:43:13,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 15:43:13,950 INFO L87 Difference]: Start difference. First operand 252 states and 334 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:43:14,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:43:14,991 INFO L93 Difference]: Finished difference Result 456 states and 600 transitions. [2023-12-16 15:43:14,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 15:43:14,992 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 128 [2023-12-16 15:43:14,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:43:14,994 INFO L225 Difference]: With dead ends: 456 [2023-12-16 15:43:14,994 INFO L226 Difference]: Without dead ends: 253 [2023-12-16 15:43:14,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-16 15:43:14,995 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 239 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 15:43:14,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 608 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 15:43:14,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-12-16 15:43:15,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 252. [2023-12-16 15:43:15,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 204 states have (on average 1.2352941176470589) internal successors, (252), 206 states have internal predecessors, (252), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 15:43:15,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 332 transitions. [2023-12-16 15:43:15,038 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 332 transitions. Word has length 128 [2023-12-16 15:43:15,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:43:15,039 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 332 transitions. [2023-12-16 15:43:15,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 15:43:15,039 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 332 transitions. [2023-12-16 15:43:15,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 15:43:15,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:43:15,039 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:43:15,051 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 (16)] Forceful destruction successful, exit code 0 [2023-12-16 15:43:15,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 15:43:15,251 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:43:15,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:43:15,251 INFO L85 PathProgramCache]: Analyzing trace with hash -147158859, now seen corresponding path program 1 times [2023-12-16 15:43:15,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:43:15,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144141196] [2023-12-16 15:43:15,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:43:15,252 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 15:43:15,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:43:15,253 INFO L229 MonitoredProcess]: Starting monitored process 17 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 15:43:15,253 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 (17)] Waiting until timeout for monitored process [2023-12-16 15:43:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:43:15,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-16 15:43:15,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:43:19,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-16 15:43:20,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 30 [2023-12-16 15:43:21,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 57 [2023-12-16 15:43:21,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 52 [2023-12-16 15:43:22,616 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:43:22,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 75 [2023-12-16 15:43:22,770 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-12-16 15:43:22,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:43:23,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:43:23,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144141196] [2023-12-16 15:43:23,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1144141196] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 15:43:23,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2057906169] [2023-12-16 15:43:23,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:43:23,903 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 15:43:23,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 15:43:23,949 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 15:43:23,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-16 15:43:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:43:25,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-16 15:43:25,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:43:30,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-16 15:43:31,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 30 [2023-12-16 15:43:32,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 57 [2023-12-16 15:43:33,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 52 [2023-12-16 15:43:33,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 75 [2023-12-16 15:43:33,967 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-12-16 15:43:33,967 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:43:35,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2057906169] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 15:43:35,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 15:43:35,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 23 [2023-12-16 15:43:35,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787161625] [2023-12-16 15:43:35,575 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 15:43:35,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-16 15:43:35,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:43:35,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-16 15:43:35,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2023-12-16 15:43:35,578 INFO L87 Difference]: Start difference. First operand 252 states and 332 transitions. Second operand has 24 states, 23 states have (on average 5.521739130434782) internal successors, (127), 22 states have internal predecessors, (127), 6 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) Received shutdown request... [2023-12-16 15:43:36,868 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (18)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 15:43:36,882 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 15:43:36,887 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 (17)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 15:43:36,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 15:43:36,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 278 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2023-12-16 15:43:36,896 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 20 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:43:36,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 297 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 15:43:36,897 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 15:43:36,909 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 (17)] Forceful destruction successful, exit code 0 [2023-12-16 15:43:37,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-12-16 15:43:37,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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=3,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 15:43:37,299 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (252states) and FLOYD_HOARE automaton (currently 6 states, 24 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 28 known predicates. [2023-12-16 15:43:37,303 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:43:37,304 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 15:43:37,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:43:37 BoogieIcfgContainer [2023-12-16 15:43:37,305 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 15:43:37,306 INFO L158 Benchmark]: Toolchain (without parser) took 73103.17ms. Allocated memory was 251.7MB in the beginning and 302.0MB in the end (delta: 50.3MB). Free memory was 204.9MB in the beginning and 196.8MB in the end (delta: 8.1MB). Peak memory consumption was 59.0MB. Max. memory is 8.0GB. [2023-12-16 15:43:37,306 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 202.4MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 15:43:37,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.35ms. Allocated memory is still 251.7MB. Free memory was 204.9MB in the beginning and 188.7MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 15:43:37,306 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.87ms. Allocated memory is still 251.7MB. Free memory was 188.7MB in the beginning and 185.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 15:43:37,306 INFO L158 Benchmark]: Boogie Preprocessor took 63.98ms. Allocated memory is still 251.7MB. Free memory was 185.0MB in the beginning and 180.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 15:43:37,306 INFO L158 Benchmark]: RCFGBuilder took 5278.84ms. Allocated memory is still 251.7MB. Free memory was 179.8MB in the beginning and 132.6MB in the end (delta: 47.2MB). Peak memory consumption was 47.2MB. Max. memory is 8.0GB. [2023-12-16 15:43:37,306 INFO L158 Benchmark]: TraceAbstraction took 67460.87ms. Allocated memory was 251.7MB in the beginning and 302.0MB in the end (delta: 50.3MB). Free memory was 132.1MB in the beginning and 196.8MB in the end (delta: -64.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 15:43:37,307 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 202.4MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 249.35ms. Allocated memory is still 251.7MB. Free memory was 204.9MB in the beginning and 188.7MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.87ms. Allocated memory is still 251.7MB. Free memory was 188.7MB in the beginning and 185.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 63.98ms. Allocated memory is still 251.7MB. Free memory was 185.0MB in the beginning and 180.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 5278.84ms. Allocated memory is still 251.7MB. Free memory was 179.8MB in the beginning and 132.6MB in the end (delta: 47.2MB). Peak memory consumption was 47.2MB. Max. memory is 8.0GB. * TraceAbstraction took 67460.87ms. Allocated memory was 251.7MB in the beginning and 302.0MB in the end (delta: 50.3MB). Free memory was 132.1MB in the beginning and 196.8MB in the end (delta: -64.7MB). There was no memory consumed. 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was constructing difference of abstraction (252states) and FLOYD_HOARE automaton (currently 6 states, 24 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 28 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.4s, OverallIterations: 16, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 19.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1811 SdHoareTripleChecker+Valid, 17.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1811 mSDsluCounter, 7725 SdHoareTripleChecker+Invalid, 16.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5603 mSDsCounter, 154 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1897 IncrementalHoareTripleChecker+Invalid, 2051 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 154 mSolverCounterUnsat, 2122 mSDtfsCounter, 1897 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2567 GetRequests, 2404 SyntacticMatches, 4 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=14, InterpolantAutomatonStates: 118, 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, 15 MinimizatonAttempts, 167 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 6.3s SatisfiabilityAnalysisTime, 36.1s InterpolantComputationTime, 2098 NumberOfCodeBlocks, 2098 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2456 ConstructedInterpolants, 114 QuantifiedInterpolants, 25118 SizeOfPredicates, 150 NumberOfNonLiveVariables, 5320 ConjunctsInSsa, 206 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 6392/7280 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