/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/combinations/pc_sfifo_2.cil-1+token_ring.11.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 02:35:56,741 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 02:35:56,806 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 02:35:56,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 02:35:56,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 02:35:56,831 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 02:35:56,831 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 02:35:56,831 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 02:35:56,832 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 02:35:56,835 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 02:35:56,835 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 02:35:56,836 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 02:35:56,836 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 02:35:56,837 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 02:35:56,837 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 02:35:56,838 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 02:35:56,838 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 02:35:56,838 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 02:35:56,838 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 02:35:56,838 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 02:35:56,838 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 02:35:56,839 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 02:35:56,839 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 02:35:56,839 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 02:35:56,839 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 02:35:56,839 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 02:35:56,839 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 02:35:56,840 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 02:35:56,840 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 02:35:56,840 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 02:35:56,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 02:35:56,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 02:35:56,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 02:35:56,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 02:35:56,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:35:56,841 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 02:35:56,841 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 02:35:56,842 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 02:35:56,842 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 02:35:56,842 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 02:35:56,842 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 02:35:56,842 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 02:35:56,842 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 02:35:56,842 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 02:35:56,843 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 02:35:56,843 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 02:35:56,843 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 02:35:57,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 02:35:57,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 02:35:57,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 02:35:57,026 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 02:35:57,026 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 02:35:57,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.11.cil-1.c [2023-12-22 02:35:58,166 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 02:35:58,357 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 02:35:58,358 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.11.cil-1.c [2023-12-22 02:35:58,370 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4275705ba/d6f5e84d35704283ab670bc84ca9c0bf/FLAG6faf171cc [2023-12-22 02:35:58,382 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4275705ba/d6f5e84d35704283ab670bc84ca9c0bf [2023-12-22 02:35:58,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 02:35:58,385 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 02:35:58,386 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 02:35:58,386 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 02:35:58,398 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 02:35:58,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:35:58" (1/1) ... [2023-12-22 02:35:58,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38c4610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:58, skipping insertion in model container [2023-12-22 02:35:58,399 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:35:58" (1/1) ... [2023-12-22 02:35:58,453 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 02:35:58,577 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.11.cil-1.c[914,927] [2023-12-22 02:35:58,629 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.11.cil-1.c[7115,7128] [2023-12-22 02:35:58,717 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:35:58,744 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 02:35:58,752 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.11.cil-1.c[914,927] [2023-12-22 02:35:58,767 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.11.cil-1.c[7115,7128] [2023-12-22 02:35:58,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:35:58,837 INFO L206 MainTranslator]: Completed translation [2023-12-22 02:35:58,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:58 WrapperNode [2023-12-22 02:35:58,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 02:35:58,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 02:35:58,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 02:35:58,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 02:35:58,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:58" (1/1) ... [2023-12-22 02:35:58,856 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:58" (1/1) ... [2023-12-22 02:35:58,887 INFO L138 Inliner]: procedures = 76, calls = 91, calls flagged for inlining = 43, calls inlined = 43, statements flattened = 976 [2023-12-22 02:35:58,887 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 02:35:58,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 02:35:58,888 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 02:35:58,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 02:35:58,896 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:58" (1/1) ... [2023-12-22 02:35:58,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:58" (1/1) ... [2023-12-22 02:35:58,901 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:58" (1/1) ... [2023-12-22 02:35:58,931 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 02:35:58,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:58" (1/1) ... [2023-12-22 02:35:58,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:58" (1/1) ... [2023-12-22 02:35:58,943 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:58" (1/1) ... [2023-12-22 02:35:58,952 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:58" (1/1) ... [2023-12-22 02:35:58,956 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:58" (1/1) ... [2023-12-22 02:35:58,959 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:58" (1/1) ... [2023-12-22 02:35:58,965 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 02:35:58,966 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 02:35:58,966 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 02:35:58,966 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 02:35:58,967 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:58" (1/1) ... [2023-12-22 02:35:58,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:35:58,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 02:35:59,046 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) [2023-12-22 02:35:59,093 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 [2023-12-22 02:35:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 02:35:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-22 02:35:59,131 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-22 02:35:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-22 02:35:59,131 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-22 02:35:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-22 02:35:59,132 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-22 02:35:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-22 02:35:59,132 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-22 02:35:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-22 02:35:59,132 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-22 02:35:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-22 02:35:59,132 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-22 02:35:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-22 02:35:59,132 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-22 02:35:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-22 02:35:59,132 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-22 02:35:59,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 02:35:59,133 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-22 02:35:59,133 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-22 02:35:59,133 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-22 02:35:59,133 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-22 02:35:59,133 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-22 02:35:59,133 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-22 02:35:59,133 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-22 02:35:59,133 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-22 02:35:59,133 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-22 02:35:59,133 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-22 02:35:59,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 02:35:59,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 02:35:59,134 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-22 02:35:59,134 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-22 02:35:59,134 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2023-12-22 02:35:59,134 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2023-12-22 02:35:59,247 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 02:35:59,249 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 02:35:59,903 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 02:35:59,959 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 02:35:59,960 INFO L309 CfgBuilder]: Removed 18 assume(true) statements. [2023-12-22 02:35:59,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:35:59 BoogieIcfgContainer [2023-12-22 02:35:59,960 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 02:35:59,962 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 02:35:59,962 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 02:35:59,964 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 02:35:59,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:35:58" (1/3) ... [2023-12-22 02:35:59,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4c5ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:35:59, skipping insertion in model container [2023-12-22 02:35:59,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:35:58" (2/3) ... [2023-12-22 02:35:59,965 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4c5ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:35:59, skipping insertion in model container [2023-12-22 02:35:59,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:35:59" (3/3) ... [2023-12-22 02:35:59,965 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.11.cil-1.c [2023-12-22 02:35:59,976 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 02:35:59,977 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 02:36:00,026 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 02:36:00,030 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;@22223d5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 02:36:00,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 02:36:00,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 365 states have (on average 1.715068493150685) internal successors, (626), 373 states have internal predecessors, (626), 41 states have call successors, (41), 15 states have call predecessors, (41), 15 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-22 02:36:00,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:36:00,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:00,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:00,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:00,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:00,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1703988734, now seen corresponding path program 1 times [2023-12-22 02:36:00,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:00,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747636612] [2023-12-22 02:36:00,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:00,054 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 [2023-12-22 02:36:00,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:00,057 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) [2023-12-22 02:36:00,090 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 [2023-12-22 02:36:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:00,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 02:36:00,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:00,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:00,279 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:00,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:00,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747636612] [2023-12-22 02:36:00,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747636612] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:00,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:00,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:36:00,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770355694] [2023-12-22 02:36:00,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:00,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:00,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:00,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:00,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:00,319 INFO L87 Difference]: Start difference. First operand has 424 states, 365 states have (on average 1.715068493150685) internal successors, (626), 373 states have internal predecessors, (626), 41 states have call successors, (41), 15 states have call predecessors, (41), 15 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:36:01,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:01,202 INFO L93 Difference]: Finished difference Result 918 states and 1525 transitions. [2023-12-22 02:36:01,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:36:01,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-22 02:36:01,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:01,225 INFO L225 Difference]: With dead ends: 918 [2023-12-22 02:36:01,225 INFO L226 Difference]: Without dead ends: 513 [2023-12-22 02:36:01,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:01,237 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 431 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:01,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1276 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 02:36:01,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2023-12-22 02:36:01,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 506. [2023-12-22 02:36:01,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 430 states have (on average 1.5813953488372092) internal successors, (680), 437 states have internal predecessors, (680), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (53), 49 states have call predecessors, (53), 48 states have call successors, (53) [2023-12-22 02:36:01,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 785 transitions. [2023-12-22 02:36:01,355 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 785 transitions. Word has length 58 [2023-12-22 02:36:01,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:01,355 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 785 transitions. [2023-12-22 02:36:01,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:36:01,356 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 785 transitions. [2023-12-22 02:36:01,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:36:01,374 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:01,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:01,382 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 (2)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:01,582 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 [2023-12-22 02:36:01,583 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:01,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:01,583 INFO L85 PathProgramCache]: Analyzing trace with hash -2057077116, now seen corresponding path program 1 times [2023-12-22 02:36:01,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:01,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399266682] [2023-12-22 02:36:01,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:01,584 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 [2023-12-22 02:36:01,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:01,587 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) [2023-12-22 02:36:01,601 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 [2023-12-22 02:36:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:01,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:36:01,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:01,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:01,738 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:01,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:01,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1399266682] [2023-12-22 02:36:01,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1399266682] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:01,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:01,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:36:01,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443108297] [2023-12-22 02:36:01,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:01,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:01,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:01,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:01,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:01,745 INFO L87 Difference]: Start difference. First operand 506 states and 785 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:36:02,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:02,580 INFO L93 Difference]: Finished difference Result 865 states and 1306 transitions. [2023-12-22 02:36:02,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:36:02,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-22 02:36:02,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:02,585 INFO L225 Difference]: With dead ends: 865 [2023-12-22 02:36:02,585 INFO L226 Difference]: Without dead ends: 701 [2023-12-22 02:36:02,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:02,588 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 420 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:02,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 1237 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 02:36:02,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2023-12-22 02:36:02,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 693. [2023-12-22 02:36:02,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 573 states have (on average 1.5322862129144852) internal successors, (878), 588 states have internal predecessors, (878), 74 states have call successors, (74), 36 states have call predecessors, (74), 44 states have return successors, (95), 73 states have call predecessors, (95), 70 states have call successors, (95) [2023-12-22 02:36:02,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1047 transitions. [2023-12-22 02:36:02,621 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1047 transitions. Word has length 58 [2023-12-22 02:36:02,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:02,621 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 1047 transitions. [2023-12-22 02:36:02,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:36:02,621 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1047 transitions. [2023-12-22 02:36:02,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:36:02,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:02,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:02,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 02:36:02,827 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 [2023-12-22 02:36:02,828 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:02,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:02,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1477573563, now seen corresponding path program 1 times [2023-12-22 02:36:02,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:02,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [640138756] [2023-12-22 02:36:02,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:02,829 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 [2023-12-22 02:36:02,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:02,830 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) [2023-12-22 02:36:02,847 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 [2023-12-22 02:36:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:02,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:36:02,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:02,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:02,961 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:02,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:02,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [640138756] [2023-12-22 02:36:02,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [640138756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:02,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:02,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:36:02,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499519876] [2023-12-22 02:36:02,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:02,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:36:02,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:02,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:36:02,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:02,963 INFO L87 Difference]: Start difference. First operand 693 states and 1047 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:36:03,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:03,131 INFO L93 Difference]: Finished difference Result 1048 states and 1544 transitions. [2023-12-22 02:36:03,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:36:03,132 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-22 02:36:03,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:03,136 INFO L225 Difference]: With dead ends: 1048 [2023-12-22 02:36:03,136 INFO L226 Difference]: Without dead ends: 711 [2023-12-22 02:36:03,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:36:03,138 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 6 mSDsluCounter, 2435 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3045 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:03,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3045 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:36:03,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2023-12-22 02:36:03,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 701. [2023-12-22 02:36:03,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 579 states have (on average 1.5233160621761659) internal successors, (882), 594 states have internal predecessors, (882), 74 states have call successors, (74), 36 states have call predecessors, (74), 46 states have return successors, (97), 75 states have call predecessors, (97), 70 states have call successors, (97) [2023-12-22 02:36:03,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1053 transitions. [2023-12-22 02:36:03,169 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1053 transitions. Word has length 58 [2023-12-22 02:36:03,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:03,170 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 1053 transitions. [2023-12-22 02:36:03,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:36:03,170 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1053 transitions. [2023-12-22 02:36:03,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:36:03,172 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:03,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:03,176 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 (4)] Ended with exit code 0 [2023-12-22 02:36:03,375 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 [2023-12-22 02:36:03,376 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:03,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:03,376 INFO L85 PathProgramCache]: Analyzing trace with hash 573410435, now seen corresponding path program 1 times [2023-12-22 02:36:03,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:03,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084347434] [2023-12-22 02:36:03,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:03,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:36:03,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:03,378 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) [2023-12-22 02:36:03,438 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 [2023-12-22 02:36:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:03,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:36:03,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:03,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:03,547 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:03,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:03,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084347434] [2023-12-22 02:36:03,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084347434] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:03,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:03,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:36:03,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100244012] [2023-12-22 02:36:03,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:03,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:36:03,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:03,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:36:03,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:03,552 INFO L87 Difference]: Start difference. First operand 701 states and 1053 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:36:03,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:03,712 INFO L93 Difference]: Finished difference Result 1058 states and 1546 transitions. [2023-12-22 02:36:03,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:36:03,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-22 02:36:03,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:03,716 INFO L225 Difference]: With dead ends: 1058 [2023-12-22 02:36:03,716 INFO L226 Difference]: Without dead ends: 713 [2023-12-22 02:36:03,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:36:03,718 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 3 mSDsluCounter, 2435 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3045 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:03,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3045 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:36:03,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2023-12-22 02:36:03,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 709. [2023-12-22 02:36:03,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 585 states have (on average 1.5145299145299145) internal successors, (886), 600 states have internal predecessors, (886), 74 states have call successors, (74), 36 states have call predecessors, (74), 48 states have return successors, (99), 77 states have call predecessors, (99), 70 states have call successors, (99) [2023-12-22 02:36:03,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 1059 transitions. [2023-12-22 02:36:03,743 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 1059 transitions. Word has length 58 [2023-12-22 02:36:03,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:03,744 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 1059 transitions. [2023-12-22 02:36:03,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:36:03,744 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 1059 transitions. [2023-12-22 02:36:03,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:36:03,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:03,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:03,749 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 [2023-12-22 02:36:03,949 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 [2023-12-22 02:36:03,949 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:03,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:03,950 INFO L85 PathProgramCache]: Analyzing trace with hash 635450049, now seen corresponding path program 1 times [2023-12-22 02:36:03,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:03,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458444955] [2023-12-22 02:36:03,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:03,951 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 [2023-12-22 02:36:03,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:03,952 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) [2023-12-22 02:36:03,958 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 [2023-12-22 02:36:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:04,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:04,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:04,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:04,080 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:04,080 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:04,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458444955] [2023-12-22 02:36:04,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458444955] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:04,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:04,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:04,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722728450] [2023-12-22 02:36:04,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:04,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:36:04,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:04,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:36:04,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:36:04,082 INFO L87 Difference]: Start difference. First operand 709 states and 1059 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-22 02:36:04,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:04,635 INFO L93 Difference]: Finished difference Result 1407 states and 2006 transitions. [2023-12-22 02:36:04,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:36:04,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2023-12-22 02:36:04,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:04,639 INFO L225 Difference]: With dead ends: 1407 [2023-12-22 02:36:04,639 INFO L226 Difference]: Without dead ends: 1058 [2023-12-22 02:36:04,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:04,640 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 905 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:04,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 649 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:36:04,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2023-12-22 02:36:04,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1054. [2023-12-22 02:36:04,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 840 states have (on average 1.4535714285714285) internal successors, (1221), 870 states have internal predecessors, (1221), 120 states have call successors, (120), 64 states have call predecessors, (120), 92 states have return successors, (184), 128 states have call predecessors, (184), 116 states have call successors, (184) [2023-12-22 02:36:04,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1525 transitions. [2023-12-22 02:36:04,684 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1525 transitions. Word has length 58 [2023-12-22 02:36:04,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:04,685 INFO L495 AbstractCegarLoop]: Abstraction has 1054 states and 1525 transitions. [2023-12-22 02:36:04,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-22 02:36:04,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1525 transitions. [2023-12-22 02:36:04,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-22 02:36:04,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:04,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:04,699 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 [2023-12-22 02:36:04,891 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 [2023-12-22 02:36:04,892 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:04,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:04,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1502465644, now seen corresponding path program 1 times [2023-12-22 02:36:04,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:04,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049627645] [2023-12-22 02:36:04,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:04,893 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 [2023-12-22 02:36:04,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:04,894 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) [2023-12-22 02:36:04,931 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 [2023-12-22 02:36:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:04,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:36:04,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:05,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:05,031 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:05,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:05,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049627645] [2023-12-22 02:36:05,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1049627645] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:05,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:05,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:36:05,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077380077] [2023-12-22 02:36:05,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:05,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:36:05,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:05,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:36:05,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:05,033 INFO L87 Difference]: Start difference. First operand 1054 states and 1525 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-22 02:36:05,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:05,152 INFO L93 Difference]: Finished difference Result 2368 states and 3296 transitions. [2023-12-22 02:36:05,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:36:05,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 59 [2023-12-22 02:36:05,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:05,160 INFO L225 Difference]: With dead ends: 2368 [2023-12-22 02:36:05,160 INFO L226 Difference]: Without dead ends: 1686 [2023-12-22 02:36:05,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:05,164 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 599 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:05,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 717 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:36:05,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2023-12-22 02:36:05,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1642. [2023-12-22 02:36:05,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1280 states have (on average 1.39296875) internal successors, (1783), 1332 states have internal predecessors, (1783), 186 states have call successors, (186), 120 states have call predecessors, (186), 174 states have return successors, (298), 198 states have call predecessors, (298), 182 states have call successors, (298) [2023-12-22 02:36:05,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2267 transitions. [2023-12-22 02:36:05,240 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2267 transitions. Word has length 59 [2023-12-22 02:36:05,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:05,240 INFO L495 AbstractCegarLoop]: Abstraction has 1642 states and 2267 transitions. [2023-12-22 02:36:05,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-22 02:36:05,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2267 transitions. [2023-12-22 02:36:05,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-22 02:36:05,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:05,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:05,254 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 [2023-12-22 02:36:05,447 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 [2023-12-22 02:36:05,447 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:05,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:05,448 INFO L85 PathProgramCache]: Analyzing trace with hash 212158497, now seen corresponding path program 1 times [2023-12-22 02:36:05,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:05,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083310064] [2023-12-22 02:36:05,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:05,449 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 [2023-12-22 02:36:05,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:05,452 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) [2023-12-22 02:36:05,462 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 [2023-12-22 02:36:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:05,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:36:05,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:05,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:05,648 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:05,648 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:05,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083310064] [2023-12-22 02:36:05,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2083310064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:05,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:05,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:36:05,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507574731] [2023-12-22 02:36:05,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:05,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:36:05,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:05,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:36:05,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:05,650 INFO L87 Difference]: Start difference. First operand 1642 states and 2267 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-22 02:36:05,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:05,826 INFO L93 Difference]: Finished difference Result 4058 states and 5436 transitions. [2023-12-22 02:36:05,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:36:05,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 60 [2023-12-22 02:36:05,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:05,837 INFO L225 Difference]: With dead ends: 4058 [2023-12-22 02:36:05,837 INFO L226 Difference]: Without dead ends: 2760 [2023-12-22 02:36:05,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:05,840 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 63 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:05,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1189 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:36:05,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2023-12-22 02:36:05,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 2728. [2023-12-22 02:36:05,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2728 states, 2098 states have (on average 1.34604385128694) internal successors, (2824), 2171 states have internal predecessors, (2824), 306 states have call successors, (306), 232 states have call predecessors, (306), 322 states have return successors, (476), 329 states have call predecessors, (476), 302 states have call successors, (476) [2023-12-22 02:36:06,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2728 states to 2728 states and 3606 transitions. [2023-12-22 02:36:06,006 INFO L78 Accepts]: Start accepts. Automaton has 2728 states and 3606 transitions. Word has length 60 [2023-12-22 02:36:06,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:06,010 INFO L495 AbstractCegarLoop]: Abstraction has 2728 states and 3606 transitions. [2023-12-22 02:36:06,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-22 02:36:06,010 INFO L276 IsEmpty]: Start isEmpty. Operand 2728 states and 3606 transitions. [2023-12-22 02:36:06,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 02:36:06,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:06,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:06,018 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 (8)] Ended with exit code 0 [2023-12-22 02:36:06,215 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 [2023-12-22 02:36:06,216 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:06,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:06,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1564308224, now seen corresponding path program 1 times [2023-12-22 02:36:06,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:06,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [652697272] [2023-12-22 02:36:06,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:06,217 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 [2023-12-22 02:36:06,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:06,218 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) [2023-12-22 02:36:06,228 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 [2023-12-22 02:36:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:06,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:36:06,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:06,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:06,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:06,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:06,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [652697272] [2023-12-22 02:36:06,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [652697272] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:06,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:06,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:36:06,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176118574] [2023-12-22 02:36:06,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:06,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:36:06,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:06,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:36:06,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:06,390 INFO L87 Difference]: Start difference. First operand 2728 states and 3606 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-22 02:36:06,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:06,644 INFO L93 Difference]: Finished difference Result 5664 states and 7344 transitions. [2023-12-22 02:36:06,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:36:06,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 66 [2023-12-22 02:36:06,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:06,662 INFO L225 Difference]: With dead ends: 5664 [2023-12-22 02:36:06,662 INFO L226 Difference]: Without dead ends: 3288 [2023-12-22 02:36:06,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:06,670 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 594 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:06,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 717 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:36:06,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2023-12-22 02:36:06,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 3244. [2023-12-22 02:36:06,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3244 states, 2486 states have (on average 1.3258246178600162) internal successors, (3296), 2567 states have internal predecessors, (3296), 370 states have call successors, (370), 288 states have call predecessors, (370), 386 states have return successors, (559), 393 states have call predecessors, (559), 366 states have call successors, (559) [2023-12-22 02:36:06,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3244 states to 3244 states and 4225 transitions. [2023-12-22 02:36:06,862 INFO L78 Accepts]: Start accepts. Automaton has 3244 states and 4225 transitions. Word has length 66 [2023-12-22 02:36:06,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:06,862 INFO L495 AbstractCegarLoop]: Abstraction has 3244 states and 4225 transitions. [2023-12-22 02:36:06,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-22 02:36:06,862 INFO L276 IsEmpty]: Start isEmpty. Operand 3244 states and 4225 transitions. [2023-12-22 02:36:06,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-22 02:36:06,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:06,864 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:06,871 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 [2023-12-22 02:36:07,069 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 [2023-12-22 02:36:07,069 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:07,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:07,070 INFO L85 PathProgramCache]: Analyzing trace with hash 732018994, now seen corresponding path program 1 times [2023-12-22 02:36:07,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:07,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104286813] [2023-12-22 02:36:07,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:07,070 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 [2023-12-22 02:36:07,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:07,071 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) [2023-12-22 02:36:07,106 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 [2023-12-22 02:36:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:07,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:07,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:07,176 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:07,177 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:07,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:07,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104286813] [2023-12-22 02:36:07,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1104286813] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:07,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:07,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:07,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041272963] [2023-12-22 02:36:07,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:07,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:36:07,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:07,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:36:07,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:36:07,178 INFO L87 Difference]: Start difference. First operand 3244 states and 4225 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-22 02:36:07,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:07,554 INFO L93 Difference]: Finished difference Result 3864 states and 4998 transitions. [2023-12-22 02:36:07,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:36:07,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 67 [2023-12-22 02:36:07,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:07,571 INFO L225 Difference]: With dead ends: 3864 [2023-12-22 02:36:07,572 INFO L226 Difference]: Without dead ends: 3861 [2023-12-22 02:36:07,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:07,576 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 1219 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:07,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 700 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:36:07,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3861 states. [2023-12-22 02:36:07,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3861 to 3827. [2023-12-22 02:36:07,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3827 states, 2924 states have (on average 1.3149794801641588) internal successors, (3845), 3019 states have internal predecessors, (3845), 435 states have call successors, (435), 344 states have call predecessors, (435), 466 states have return successors, (662), 468 states have call predecessors, (662), 432 states have call successors, (662) [2023-12-22 02:36:07,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3827 states to 3827 states and 4942 transitions. [2023-12-22 02:36:07,776 INFO L78 Accepts]: Start accepts. Automaton has 3827 states and 4942 transitions. Word has length 67 [2023-12-22 02:36:07,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:07,777 INFO L495 AbstractCegarLoop]: Abstraction has 3827 states and 4942 transitions. [2023-12-22 02:36:07,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-22 02:36:07,777 INFO L276 IsEmpty]: Start isEmpty. Operand 3827 states and 4942 transitions. [2023-12-22 02:36:07,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-22 02:36:07,781 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:07,781 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:07,798 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 [2023-12-22 02:36:07,985 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 [2023-12-22 02:36:07,986 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:07,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:07,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1216352650, now seen corresponding path program 1 times [2023-12-22 02:36:07,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:07,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318810929] [2023-12-22 02:36:07,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:07,987 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 [2023-12-22 02:36:07,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:07,989 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) [2023-12-22 02:36:08,026 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 [2023-12-22 02:36:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:08,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:36:08,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:08,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:08,281 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:36:08,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:08,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:08,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318810929] [2023-12-22 02:36:08,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318810929] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:36:08,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:36:08,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2023-12-22 02:36:08,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453686102] [2023-12-22 02:36:08,380 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:36:08,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 02:36:08,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:08,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 02:36:08,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:36:08,382 INFO L87 Difference]: Start difference. First operand 3827 states and 4942 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-22 02:36:09,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:09,269 INFO L93 Difference]: Finished difference Result 8366 states and 10698 transitions. [2023-12-22 02:36:09,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:36:09,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 68 [2023-12-22 02:36:09,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:09,311 INFO L225 Difference]: With dead ends: 8366 [2023-12-22 02:36:09,311 INFO L226 Difference]: Without dead ends: 8363 [2023-12-22 02:36:09,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:36:09,317 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 1529 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 2748 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:09,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 2748 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:36:09,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8363 states. [2023-12-22 02:36:09,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8363 to 6181. [2023-12-22 02:36:09,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6181 states, 4698 states have (on average 1.3037462750106428) internal successors, (6125), 4859 states have internal predecessors, (6125), 699 states have call successors, (699), 568 states have call predecessors, (699), 782 states have return successors, (1096), 758 states have call predecessors, (1096), 696 states have call successors, (1096) [2023-12-22 02:36:09,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6181 states to 6181 states and 7920 transitions. [2023-12-22 02:36:09,709 INFO L78 Accepts]: Start accepts. Automaton has 6181 states and 7920 transitions. Word has length 68 [2023-12-22 02:36:09,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:09,709 INFO L495 AbstractCegarLoop]: Abstraction has 6181 states and 7920 transitions. [2023-12-22 02:36:09,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-22 02:36:09,710 INFO L276 IsEmpty]: Start isEmpty. Operand 6181 states and 7920 transitions. [2023-12-22 02:36:09,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-22 02:36:09,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:09,711 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:09,722 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 (11)] Ended with exit code 0 [2023-12-22 02:36:09,915 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 [2023-12-22 02:36:09,915 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:09,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:09,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1865463374, now seen corresponding path program 2 times [2023-12-22 02:36:09,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:09,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664258846] [2023-12-22 02:36:09,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 02:36:09,916 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 [2023-12-22 02:36:09,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:09,933 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) [2023-12-22 02:36:09,966 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 [2023-12-22 02:36:10,047 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 02:36:10,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 02:36:10,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:36:10,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:10,056 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:10,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:10,056 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:10,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664258846] [2023-12-22 02:36:10,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664258846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:10,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:10,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:36:10,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467177911] [2023-12-22 02:36:10,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:10,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:36:10,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:10,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:36:10,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:10,057 INFO L87 Difference]: Start difference. First operand 6181 states and 7920 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-22 02:36:10,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:10,306 INFO L93 Difference]: Finished difference Result 9152 states and 11776 transitions. [2023-12-22 02:36:10,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:36:10,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2023-12-22 02:36:10,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:10,327 INFO L225 Difference]: With dead ends: 9152 [2023-12-22 02:36:10,327 INFO L226 Difference]: Without dead ends: 3849 [2023-12-22 02:36:10,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:10,335 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 630 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:10,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 775 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:36:10,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3849 states. [2023-12-22 02:36:10,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3849 to 3825. [2023-12-22 02:36:10,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3825 states, 2926 states have (on average 1.2983595352016404) internal successors, (3799), 3017 states have internal predecessors, (3799), 435 states have call successors, (435), 344 states have call predecessors, (435), 462 states have return successors, (630), 468 states have call predecessors, (630), 432 states have call successors, (630) [2023-12-22 02:36:10,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3825 states to 3825 states and 4864 transitions. [2023-12-22 02:36:10,585 INFO L78 Accepts]: Start accepts. Automaton has 3825 states and 4864 transitions. Word has length 71 [2023-12-22 02:36:10,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:10,586 INFO L495 AbstractCegarLoop]: Abstraction has 3825 states and 4864 transitions. [2023-12-22 02:36:10,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-22 02:36:10,586 INFO L276 IsEmpty]: Start isEmpty. Operand 3825 states and 4864 transitions. [2023-12-22 02:36:10,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-22 02:36:10,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:10,589 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:10,595 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 (12)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:10,792 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 [2023-12-22 02:36:10,793 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:10,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:10,793 INFO L85 PathProgramCache]: Analyzing trace with hash -482438939, now seen corresponding path program 1 times [2023-12-22 02:36:10,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:10,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185638832] [2023-12-22 02:36:10,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:10,794 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 [2023-12-22 02:36:10,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:10,795 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) [2023-12-22 02:36:10,796 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 (13)] Waiting until timeout for monitored process [2023-12-22 02:36:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:10,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:36:10,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:10,945 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:10,945 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:10,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:10,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185638832] [2023-12-22 02:36:10,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185638832] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:10,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:10,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:36:10,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5515262] [2023-12-22 02:36:10,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:10,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:36:10,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:10,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:36:10,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:10,947 INFO L87 Difference]: Start difference. First operand 3825 states and 4864 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:36:11,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:11,354 INFO L93 Difference]: Finished difference Result 10262 states and 12823 transitions. [2023-12-22 02:36:11,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:36:11,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 76 [2023-12-22 02:36:11,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:11,371 INFO L225 Difference]: With dead ends: 10262 [2023-12-22 02:36:11,372 INFO L226 Difference]: Without dead ends: 5473 [2023-12-22 02:36:11,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:11,380 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 84 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:11,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 1284 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:36:11,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5473 states. [2023-12-22 02:36:11,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5473 to 5473. [2023-12-22 02:36:11,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5473 states, 4136 states have (on average 1.2736943907156673) internal successors, (5268), 4272 states have internal predecessors, (5268), 633 states have call successors, (633), 512 states have call predecessors, (633), 702 states have return successors, (954), 693 states have call predecessors, (954), 630 states have call successors, (954) [2023-12-22 02:36:11,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5473 states to 5473 states and 6855 transitions. [2023-12-22 02:36:11,668 INFO L78 Accepts]: Start accepts. Automaton has 5473 states and 6855 transitions. Word has length 76 [2023-12-22 02:36:11,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:11,668 INFO L495 AbstractCegarLoop]: Abstraction has 5473 states and 6855 transitions. [2023-12-22 02:36:11,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:36:11,668 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states and 6855 transitions. [2023-12-22 02:36:11,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-22 02:36:11,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:11,671 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:11,690 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 [2023-12-22 02:36:11,874 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 [2023-12-22 02:36:11,874 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:11,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:11,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1880333721, now seen corresponding path program 1 times [2023-12-22 02:36:11,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:11,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386628590] [2023-12-22 02:36:11,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:11,875 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 [2023-12-22 02:36:11,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:11,877 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) [2023-12-22 02:36:11,879 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 [2023-12-22 02:36:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:11,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:11,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:12,044 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 02:36:12,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:12,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:12,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386628590] [2023-12-22 02:36:12,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386628590] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:12,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:12,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:12,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183666576] [2023-12-22 02:36:12,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:12,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:36:12,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:12,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:36:12,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:36:12,046 INFO L87 Difference]: Start difference. First operand 5473 states and 6855 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:36:12,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:12,781 INFO L93 Difference]: Finished difference Result 10620 states and 13187 transitions. [2023-12-22 02:36:12,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:36:12,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 85 [2023-12-22 02:36:12,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:12,797 INFO L225 Difference]: With dead ends: 10620 [2023-12-22 02:36:12,797 INFO L226 Difference]: Without dead ends: 5503 [2023-12-22 02:36:12,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:12,806 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 885 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:12,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [914 Valid, 631 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:36:12,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5503 states. [2023-12-22 02:36:13,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5503 to 5503. [2023-12-22 02:36:13,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5503 states, 4151 states have (on average 1.2568055890146952) internal successors, (5217), 4302 states have internal predecessors, (5217), 633 states have call successors, (633), 512 states have call predecessors, (633), 717 states have return successors, (954), 693 states have call predecessors, (954), 630 states have call successors, (954) [2023-12-22 02:36:13,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5503 states to 5503 states and 6804 transitions. [2023-12-22 02:36:13,196 INFO L78 Accepts]: Start accepts. Automaton has 5503 states and 6804 transitions. Word has length 85 [2023-12-22 02:36:13,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:13,196 INFO L495 AbstractCegarLoop]: Abstraction has 5503 states and 6804 transitions. [2023-12-22 02:36:13,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:36:13,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5503 states and 6804 transitions. [2023-12-22 02:36:13,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-22 02:36:13,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:13,199 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:13,203 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 (14)] Ended with exit code 0 [2023-12-22 02:36:13,402 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 [2023-12-22 02:36:13,403 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:13,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:13,403 INFO L85 PathProgramCache]: Analyzing trace with hash 245747767, now seen corresponding path program 1 times [2023-12-22 02:36:13,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:13,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701229999] [2023-12-22 02:36:13,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:13,404 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 [2023-12-22 02:36:13,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:13,405 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) [2023-12-22 02:36:13,425 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 [2023-12-22 02:36:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:13,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:36:13,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:13,549 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 02:36:13,550 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:13,550 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:13,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701229999] [2023-12-22 02:36:13,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701229999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:13,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:13,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:36:13,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214994423] [2023-12-22 02:36:13,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:13,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:36:13,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:13,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:36:13,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:13,551 INFO L87 Difference]: Start difference. First operand 5503 states and 6804 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:36:13,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:13,940 INFO L93 Difference]: Finished difference Result 10409 states and 12742 transitions. [2023-12-22 02:36:13,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:36:13,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2023-12-22 02:36:13,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:13,957 INFO L225 Difference]: With dead ends: 10409 [2023-12-22 02:36:13,957 INFO L226 Difference]: Without dead ends: 5252 [2023-12-22 02:36:13,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:13,963 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 91 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:13,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1275 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:36:13,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5252 states. [2023-12-22 02:36:14,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5252 to 5249. [2023-12-22 02:36:14,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 3967 states have (on average 1.2450214267708597) internal successors, (4939), 4112 states have internal predecessors, (4939), 595 states have call successors, (595), 484 states have call predecessors, (595), 685 states have return successors, (837), 655 states have call predecessors, (837), 592 states have call successors, (837) [2023-12-22 02:36:14,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 6371 transitions. [2023-12-22 02:36:14,200 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 6371 transitions. Word has length 86 [2023-12-22 02:36:14,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:14,200 INFO L495 AbstractCegarLoop]: Abstraction has 5249 states and 6371 transitions. [2023-12-22 02:36:14,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:36:14,200 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 6371 transitions. [2023-12-22 02:36:14,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-22 02:36:14,206 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:14,206 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:14,210 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 [2023-12-22 02:36:14,409 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 [2023-12-22 02:36:14,409 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:14,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:14,410 INFO L85 PathProgramCache]: Analyzing trace with hash 88670978, now seen corresponding path program 1 times [2023-12-22 02:36:14,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:14,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934924424] [2023-12-22 02:36:14,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:14,410 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 [2023-12-22 02:36:14,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:14,412 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) [2023-12-22 02:36:14,443 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 [2023-12-22 02:36:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:14,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:14,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:14,530 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-12-22 02:36:14,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:14,531 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:14,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934924424] [2023-12-22 02:36:14,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934924424] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:14,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:14,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:14,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057930867] [2023-12-22 02:36:14,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:14,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:14,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:14,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:14,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:14,532 INFO L87 Difference]: Start difference. First operand 5249 states and 6371 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-22 02:36:15,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:15,529 INFO L93 Difference]: Finished difference Result 12500 states and 15057 transitions. [2023-12-22 02:36:15,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:36:15,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 145 [2023-12-22 02:36:15,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:15,551 INFO L225 Difference]: With dead ends: 12500 [2023-12-22 02:36:15,551 INFO L226 Difference]: Without dead ends: 7392 [2023-12-22 02:36:15,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-22 02:36:15,565 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 924 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:15,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 903 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:36:15,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7392 states. [2023-12-22 02:36:15,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7392 to 7072. [2023-12-22 02:36:15,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7072 states, 5301 states have (on average 1.238256932654216) internal successors, (6564), 5482 states have internal predecessors, (6564), 815 states have call successors, (815), 673 states have call predecessors, (815), 954 states have return successors, (1131), 918 states have call predecessors, (1131), 812 states have call successors, (1131) [2023-12-22 02:36:15,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7072 states to 7072 states and 8510 transitions. [2023-12-22 02:36:15,979 INFO L78 Accepts]: Start accepts. Automaton has 7072 states and 8510 transitions. Word has length 145 [2023-12-22 02:36:15,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:15,979 INFO L495 AbstractCegarLoop]: Abstraction has 7072 states and 8510 transitions. [2023-12-22 02:36:15,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-22 02:36:15,980 INFO L276 IsEmpty]: Start isEmpty. Operand 7072 states and 8510 transitions. [2023-12-22 02:36:15,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:15,982 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:15,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:15,998 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 [2023-12-22 02:36:16,187 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 [2023-12-22 02:36:16,187 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:16,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:16,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1477252457, now seen corresponding path program 1 times [2023-12-22 02:36:16,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:16,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798942425] [2023-12-22 02:36:16,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:16,189 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 [2023-12-22 02:36:16,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:16,190 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) [2023-12-22 02:36:16,224 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 [2023-12-22 02:36:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:16,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:36:16,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:16,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:16,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:16,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:16,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798942425] [2023-12-22 02:36:16,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1798942425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:16,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:16,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:36:16,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767786932] [2023-12-22 02:36:16,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:16,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:36:16,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:16,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:36:16,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:16,340 INFO L87 Difference]: Start difference. First operand 7072 states and 8510 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:16,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:16,875 INFO L93 Difference]: Finished difference Result 7397 states and 9039 transitions. [2023-12-22 02:36:16,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:36:16,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:16,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:16,892 INFO L225 Difference]: With dead ends: 7397 [2023-12-22 02:36:16,892 INFO L226 Difference]: Without dead ends: 7072 [2023-12-22 02:36:16,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:16,895 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 530 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:16,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 717 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:36:16,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7072 states. [2023-12-22 02:36:17,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7072 to 7072. [2023-12-22 02:36:17,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7072 states, 5301 states have (on average 1.238068289002075) internal successors, (6563), 5482 states have internal predecessors, (6563), 815 states have call successors, (815), 673 states have call predecessors, (815), 954 states have return successors, (1131), 918 states have call predecessors, (1131), 812 states have call successors, (1131) [2023-12-22 02:36:17,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7072 states to 7072 states and 8509 transitions. [2023-12-22 02:36:17,347 INFO L78 Accepts]: Start accepts. Automaton has 7072 states and 8509 transitions. Word has length 152 [2023-12-22 02:36:17,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:17,347 INFO L495 AbstractCegarLoop]: Abstraction has 7072 states and 8509 transitions. [2023-12-22 02:36:17,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:17,347 INFO L276 IsEmpty]: Start isEmpty. Operand 7072 states and 8509 transitions. [2023-12-22 02:36:17,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:17,350 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:17,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:17,380 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 [2023-12-22 02:36:17,555 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 [2023-12-22 02:36:17,555 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:17,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:17,556 INFO L85 PathProgramCache]: Analyzing trace with hash -419727001, now seen corresponding path program 1 times [2023-12-22 02:36:17,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:17,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225368343] [2023-12-22 02:36:17,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:17,556 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 [2023-12-22 02:36:17,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:17,557 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2023-12-22 02:36:17,562 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 (18)] Waiting until timeout for monitored process [2023-12-22 02:36:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:17,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:36:17,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:17,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:17,705 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:17,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:17,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225368343] [2023-12-22 02:36:17,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225368343] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:17,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:17,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:36:17,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016410767] [2023-12-22 02:36:17,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:17,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:36:17,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:17,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:36:17,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:17,708 INFO L87 Difference]: Start difference. First operand 7072 states and 8509 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:18,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:18,111 INFO L93 Difference]: Finished difference Result 7389 states and 9022 transitions. [2023-12-22 02:36:18,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:36:18,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:18,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:18,146 INFO L225 Difference]: With dead ends: 7389 [2023-12-22 02:36:18,146 INFO L226 Difference]: Without dead ends: 7072 [2023-12-22 02:36:18,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:18,148 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 521 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:18,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 716 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:36:18,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7072 states. [2023-12-22 02:36:18,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7072 to 7072. [2023-12-22 02:36:18,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7072 states, 5301 states have (on average 1.2378796453499339) internal successors, (6562), 5482 states have internal predecessors, (6562), 815 states have call successors, (815), 673 states have call predecessors, (815), 954 states have return successors, (1131), 918 states have call predecessors, (1131), 812 states have call successors, (1131) [2023-12-22 02:36:18,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7072 states to 7072 states and 8508 transitions. [2023-12-22 02:36:18,506 INFO L78 Accepts]: Start accepts. Automaton has 7072 states and 8508 transitions. Word has length 152 [2023-12-22 02:36:18,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:18,506 INFO L495 AbstractCegarLoop]: Abstraction has 7072 states and 8508 transitions. [2023-12-22 02:36:18,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:18,506 INFO L276 IsEmpty]: Start isEmpty. Operand 7072 states and 8508 transitions. [2023-12-22 02:36:18,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:18,509 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:18,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:18,532 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 (18)] Ended with exit code 0 [2023-12-22 02:36:18,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 [2023-12-22 02:36:18,714 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:18,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:18,714 INFO L85 PathProgramCache]: Analyzing trace with hash -489374875, now seen corresponding path program 1 times [2023-12-22 02:36:18,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:18,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943152342] [2023-12-22 02:36:18,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:18,715 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 [2023-12-22 02:36:18,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:18,716 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2023-12-22 02:36:18,751 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 (19)] Waiting until timeout for monitored process [2023-12-22 02:36:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:18,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:18,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:18,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:18,921 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:18,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:18,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943152342] [2023-12-22 02:36:18,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943152342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:18,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:18,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:18,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224884802] [2023-12-22 02:36:18,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:18,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:18,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:18,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:18,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:18,925 INFO L87 Difference]: Start difference. First operand 7072 states and 8508 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:20,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:20,065 INFO L93 Difference]: Finished difference Result 7743 states and 9611 transitions. [2023-12-22 02:36:20,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:36:20,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:20,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:20,088 INFO L225 Difference]: With dead ends: 7743 [2023-12-22 02:36:20,088 INFO L226 Difference]: Without dead ends: 7430 [2023-12-22 02:36:20,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:20,092 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 1177 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:20,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 1669 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 02:36:20,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7430 states. [2023-12-22 02:36:20,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7430 to 7401. [2023-12-22 02:36:20,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7401 states, 5603 states have (on average 1.2602177404961628) internal successors, (7061), 5785 states have internal predecessors, (7061), 835 states have call successors, (835), 679 states have call predecessors, (835), 961 states have return successors, (1152), 938 states have call predecessors, (1152), 832 states have call successors, (1152) [2023-12-22 02:36:20,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7401 states to 7401 states and 9048 transitions. [2023-12-22 02:36:20,685 INFO L78 Accepts]: Start accepts. Automaton has 7401 states and 9048 transitions. Word has length 152 [2023-12-22 02:36:20,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:20,685 INFO L495 AbstractCegarLoop]: Abstraction has 7401 states and 9048 transitions. [2023-12-22 02:36:20,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:20,686 INFO L276 IsEmpty]: Start isEmpty. Operand 7401 states and 9048 transitions. [2023-12-22 02:36:20,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:20,688 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:20,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:20,696 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 (19)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:20,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 [2023-12-22 02:36:20,895 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:20,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:20,895 INFO L85 PathProgramCache]: Analyzing trace with hash 47591009, now seen corresponding path program 1 times [2023-12-22 02:36:20,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:20,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542504121] [2023-12-22 02:36:20,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:20,896 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 [2023-12-22 02:36:20,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:20,898 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2023-12-22 02:36:20,903 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 (20)] Waiting until timeout for monitored process [2023-12-22 02:36:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:21,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:21,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:21,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:21,125 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:21,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:21,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1542504121] [2023-12-22 02:36:21,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1542504121] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:21,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:21,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:21,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588202047] [2023-12-22 02:36:21,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:21,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:21,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:21,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:21,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:21,128 INFO L87 Difference]: Start difference. First operand 7401 states and 9048 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:21,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:21,948 INFO L93 Difference]: Finished difference Result 8043 states and 10101 transitions. [2023-12-22 02:36:21,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:36:21,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:21,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:22,003 INFO L225 Difference]: With dead ends: 8043 [2023-12-22 02:36:22,004 INFO L226 Difference]: Without dead ends: 7401 [2023-12-22 02:36:22,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:22,027 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 874 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:22,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 1008 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:36:22,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7401 states. [2023-12-22 02:36:22,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7401 to 7401. [2023-12-22 02:36:22,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7401 states, 5603 states have (on average 1.2589684097804748) internal successors, (7054), 5785 states have internal predecessors, (7054), 835 states have call successors, (835), 679 states have call predecessors, (835), 961 states have return successors, (1152), 938 states have call predecessors, (1152), 832 states have call successors, (1152) [2023-12-22 02:36:22,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7401 states to 7401 states and 9041 transitions. [2023-12-22 02:36:22,667 INFO L78 Accepts]: Start accepts. Automaton has 7401 states and 9041 transitions. Word has length 152 [2023-12-22 02:36:22,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:22,667 INFO L495 AbstractCegarLoop]: Abstraction has 7401 states and 9041 transitions. [2023-12-22 02:36:22,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:22,667 INFO L276 IsEmpty]: Start isEmpty. Operand 7401 states and 9041 transitions. [2023-12-22 02:36:22,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:22,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:22,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:22,676 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 (20)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:22,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 [2023-12-22 02:36:22,876 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:22,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:22,876 INFO L85 PathProgramCache]: Analyzing trace with hash -73634843, now seen corresponding path program 1 times [2023-12-22 02:36:22,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:22,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408003895] [2023-12-22 02:36:22,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:22,877 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 [2023-12-22 02:36:22,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:22,878 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2023-12-22 02:36:22,888 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 (21)] Waiting until timeout for monitored process [2023-12-22 02:36:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:23,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:23,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:23,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:23,128 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:23,128 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:23,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408003895] [2023-12-22 02:36:23,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408003895] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:23,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:23,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:23,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793427285] [2023-12-22 02:36:23,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:23,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:23,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:23,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:23,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:23,130 INFO L87 Difference]: Start difference. First operand 7401 states and 9041 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:24,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:24,137 INFO L93 Difference]: Finished difference Result 8043 states and 10087 transitions. [2023-12-22 02:36:24,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:36:24,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:24,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:24,151 INFO L225 Difference]: With dead ends: 8043 [2023-12-22 02:36:24,152 INFO L226 Difference]: Without dead ends: 7401 [2023-12-22 02:36:24,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:24,156 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 867 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:24,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 1001 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:36:24,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7401 states. [2023-12-22 02:36:24,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7401 to 7401. [2023-12-22 02:36:24,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7401 states, 5603 states have (on average 1.2577190790647867) internal successors, (7047), 5785 states have internal predecessors, (7047), 835 states have call successors, (835), 679 states have call predecessors, (835), 961 states have return successors, (1152), 938 states have call predecessors, (1152), 832 states have call successors, (1152) [2023-12-22 02:36:24,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7401 states to 7401 states and 9034 transitions. [2023-12-22 02:36:24,674 INFO L78 Accepts]: Start accepts. Automaton has 7401 states and 9034 transitions. Word has length 152 [2023-12-22 02:36:24,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:24,675 INFO L495 AbstractCegarLoop]: Abstraction has 7401 states and 9034 transitions. [2023-12-22 02:36:24,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:24,675 INFO L276 IsEmpty]: Start isEmpty. Operand 7401 states and 9034 transitions. [2023-12-22 02:36:24,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:24,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:24,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:24,686 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 (21)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:24,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 [2023-12-22 02:36:24,883 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:24,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:24,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1021686809, now seen corresponding path program 1 times [2023-12-22 02:36:24,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:24,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476645080] [2023-12-22 02:36:24,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:24,885 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 [2023-12-22 02:36:24,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:24,887 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2023-12-22 02:36:24,889 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 (22)] Waiting until timeout for monitored process [2023-12-22 02:36:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:25,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:25,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:25,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:25,141 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:25,141 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:25,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476645080] [2023-12-22 02:36:25,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476645080] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:25,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:25,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:25,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109268887] [2023-12-22 02:36:25,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:25,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:25,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:25,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:25,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:25,143 INFO L87 Difference]: Start difference. First operand 7401 states and 9034 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:26,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:26,088 INFO L93 Difference]: Finished difference Result 8043 states and 10073 transitions. [2023-12-22 02:36:26,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:36:26,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:26,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:26,106 INFO L225 Difference]: With dead ends: 8043 [2023-12-22 02:36:26,107 INFO L226 Difference]: Without dead ends: 7401 [2023-12-22 02:36:26,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:26,113 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 861 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:26,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 994 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:36:26,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7401 states. [2023-12-22 02:36:26,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7401 to 7401. [2023-12-22 02:36:26,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7401 states, 5603 states have (on average 1.2564697483490987) internal successors, (7040), 5785 states have internal predecessors, (7040), 835 states have call successors, (835), 679 states have call predecessors, (835), 961 states have return successors, (1152), 938 states have call predecessors, (1152), 832 states have call successors, (1152) [2023-12-22 02:36:26,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7401 states to 7401 states and 9027 transitions. [2023-12-22 02:36:26,688 INFO L78 Accepts]: Start accepts. Automaton has 7401 states and 9027 transitions. Word has length 152 [2023-12-22 02:36:26,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:26,688 INFO L495 AbstractCegarLoop]: Abstraction has 7401 states and 9027 transitions. [2023-12-22 02:36:26,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:26,689 INFO L276 IsEmpty]: Start isEmpty. Operand 7401 states and 9027 transitions. [2023-12-22 02:36:26,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:26,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:26,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:26,696 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 (22)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:26,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 [2023-12-22 02:36:26,897 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:26,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:26,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1659149539, now seen corresponding path program 1 times [2023-12-22 02:36:26,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:26,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064554099] [2023-12-22 02:36:26,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:26,898 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 [2023-12-22 02:36:26,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:26,899 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2023-12-22 02:36:26,900 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 (23)] Waiting until timeout for monitored process [2023-12-22 02:36:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:27,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:27,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:27,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:27,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:27,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:27,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064554099] [2023-12-22 02:36:27,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064554099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:27,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:27,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:27,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728377427] [2023-12-22 02:36:27,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:27,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:27,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:27,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:27,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:27,122 INFO L87 Difference]: Start difference. First operand 7401 states and 9027 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:28,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:28,093 INFO L93 Difference]: Finished difference Result 8043 states and 10059 transitions. [2023-12-22 02:36:28,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:36:28,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:28,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:28,107 INFO L225 Difference]: With dead ends: 8043 [2023-12-22 02:36:28,107 INFO L226 Difference]: Without dead ends: 7401 [2023-12-22 02:36:28,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:28,118 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 855 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:28,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 987 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:36:28,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7401 states. [2023-12-22 02:36:28,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7401 to 7401. [2023-12-22 02:36:28,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7401 states, 5603 states have (on average 1.2552204176334107) internal successors, (7033), 5785 states have internal predecessors, (7033), 835 states have call successors, (835), 679 states have call predecessors, (835), 961 states have return successors, (1152), 938 states have call predecessors, (1152), 832 states have call successors, (1152) [2023-12-22 02:36:28,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7401 states to 7401 states and 9020 transitions. [2023-12-22 02:36:28,654 INFO L78 Accepts]: Start accepts. Automaton has 7401 states and 9020 transitions. Word has length 152 [2023-12-22 02:36:28,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:28,655 INFO L495 AbstractCegarLoop]: Abstraction has 7401 states and 9020 transitions. [2023-12-22 02:36:28,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:28,655 INFO L276 IsEmpty]: Start isEmpty. Operand 7401 states and 9020 transitions. [2023-12-22 02:36:28,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:28,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:28,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:28,680 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 (23)] Ended with exit code 0 [2023-12-22 02:36:28,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 [2023-12-22 02:36:28,866 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:28,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:28,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1884175463, now seen corresponding path program 1 times [2023-12-22 02:36:28,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:28,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741772073] [2023-12-22 02:36:28,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:28,867 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 [2023-12-22 02:36:28,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:28,873 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2023-12-22 02:36:28,874 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 (24)] Waiting until timeout for monitored process [2023-12-22 02:36:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:29,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:29,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:29,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:29,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:29,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:29,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741772073] [2023-12-22 02:36:29,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741772073] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:29,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:29,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:29,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451539619] [2023-12-22 02:36:29,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:29,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:29,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:29,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:29,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:29,083 INFO L87 Difference]: Start difference. First operand 7401 states and 9020 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:30,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:30,089 INFO L93 Difference]: Finished difference Result 8043 states and 10045 transitions. [2023-12-22 02:36:30,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:36:30,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:30,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:30,106 INFO L225 Difference]: With dead ends: 8043 [2023-12-22 02:36:30,106 INFO L226 Difference]: Without dead ends: 7401 [2023-12-22 02:36:30,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:30,112 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 849 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:30,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 980 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:36:30,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7401 states. [2023-12-22 02:36:30,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7401 to 7401. [2023-12-22 02:36:30,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7401 states, 5603 states have (on average 1.2539710869177227) internal successors, (7026), 5785 states have internal predecessors, (7026), 835 states have call successors, (835), 679 states have call predecessors, (835), 961 states have return successors, (1152), 938 states have call predecessors, (1152), 832 states have call successors, (1152) [2023-12-22 02:36:30,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7401 states to 7401 states and 9013 transitions. [2023-12-22 02:36:30,735 INFO L78 Accepts]: Start accepts. Automaton has 7401 states and 9013 transitions. Word has length 152 [2023-12-22 02:36:30,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:30,735 INFO L495 AbstractCegarLoop]: Abstraction has 7401 states and 9013 transitions. [2023-12-22 02:36:30,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:30,735 INFO L276 IsEmpty]: Start isEmpty. Operand 7401 states and 9013 transitions. [2023-12-22 02:36:30,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:30,737 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:30,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:30,742 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 (24)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:30,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 [2023-12-22 02:36:30,943 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:30,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:30,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1060150371, now seen corresponding path program 1 times [2023-12-22 02:36:30,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:30,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722164280] [2023-12-22 02:36:30,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:30,944 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 [2023-12-22 02:36:30,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:30,945 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2023-12-22 02:36:30,950 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 (25)] Waiting until timeout for monitored process [2023-12-22 02:36:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:31,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:31,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:31,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:31,131 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:31,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:31,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722164280] [2023-12-22 02:36:31,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722164280] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:31,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:31,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:31,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054488908] [2023-12-22 02:36:31,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:31,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:31,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:31,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:31,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:31,133 INFO L87 Difference]: Start difference. First operand 7401 states and 9013 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:32,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:32,125 INFO L93 Difference]: Finished difference Result 8043 states and 10031 transitions. [2023-12-22 02:36:32,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:36:32,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:32,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:32,139 INFO L225 Difference]: With dead ends: 8043 [2023-12-22 02:36:32,139 INFO L226 Difference]: Without dead ends: 7401 [2023-12-22 02:36:32,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:32,142 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 843 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:32,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 973 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:36:32,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7401 states. [2023-12-22 02:36:32,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7401 to 7401. [2023-12-22 02:36:32,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7401 states, 5603 states have (on average 1.2527217562020345) internal successors, (7019), 5785 states have internal predecessors, (7019), 835 states have call successors, (835), 679 states have call predecessors, (835), 961 states have return successors, (1152), 938 states have call predecessors, (1152), 832 states have call successors, (1152) [2023-12-22 02:36:32,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7401 states to 7401 states and 9006 transitions. [2023-12-22 02:36:32,786 INFO L78 Accepts]: Start accepts. Automaton has 7401 states and 9006 transitions. Word has length 152 [2023-12-22 02:36:32,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:32,786 INFO L495 AbstractCegarLoop]: Abstraction has 7401 states and 9006 transitions. [2023-12-22 02:36:32,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:32,786 INFO L276 IsEmpty]: Start isEmpty. Operand 7401 states and 9006 transitions. [2023-12-22 02:36:32,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:32,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:32,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:32,802 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 (25)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:32,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 [2023-12-22 02:36:32,995 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:32,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:32,995 INFO L85 PathProgramCache]: Analyzing trace with hash -490451737, now seen corresponding path program 1 times [2023-12-22 02:36:32,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:32,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126923085] [2023-12-22 02:36:32,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:32,996 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 [2023-12-22 02:36:32,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:32,998 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2023-12-22 02:36:33,010 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 (26)] Waiting until timeout for monitored process [2023-12-22 02:36:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:33,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:33,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:33,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:33,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:33,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:33,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126923085] [2023-12-22 02:36:33,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2126923085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:33,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:33,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:33,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781536514] [2023-12-22 02:36:33,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:33,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:33,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:33,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:33,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:33,204 INFO L87 Difference]: Start difference. First operand 7401 states and 9006 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:34,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:34,258 INFO L93 Difference]: Finished difference Result 8043 states and 10017 transitions. [2023-12-22 02:36:34,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:36:34,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:34,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:34,275 INFO L225 Difference]: With dead ends: 8043 [2023-12-22 02:36:34,275 INFO L226 Difference]: Without dead ends: 7401 [2023-12-22 02:36:34,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:34,279 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 837 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:34,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 966 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:36:34,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7401 states. [2023-12-22 02:36:34,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7401 to 7401. [2023-12-22 02:36:34,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7401 states, 5603 states have (on average 1.2514724254863465) internal successors, (7012), 5785 states have internal predecessors, (7012), 835 states have call successors, (835), 679 states have call predecessors, (835), 961 states have return successors, (1152), 938 states have call predecessors, (1152), 832 states have call successors, (1152) [2023-12-22 02:36:34,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7401 states to 7401 states and 8999 transitions. [2023-12-22 02:36:34,975 INFO L78 Accepts]: Start accepts. Automaton has 7401 states and 8999 transitions. Word has length 152 [2023-12-22 02:36:34,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:34,975 INFO L495 AbstractCegarLoop]: Abstraction has 7401 states and 8999 transitions. [2023-12-22 02:36:34,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:34,976 INFO L276 IsEmpty]: Start isEmpty. Operand 7401 states and 8999 transitions. [2023-12-22 02:36:34,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:34,978 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:34,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:34,982 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 (26)] Ended with exit code 0 [2023-12-22 02:36:35,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /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 [2023-12-22 02:36:35,182 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:35,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:35,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1787397149, now seen corresponding path program 1 times [2023-12-22 02:36:35,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:35,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289366106] [2023-12-22 02:36:35,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:35,183 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 [2023-12-22 02:36:35,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:35,184 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2023-12-22 02:36:35,215 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 (27)] Waiting until timeout for monitored process [2023-12-22 02:36:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:35,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:35,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:35,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:35,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:35,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:35,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289366106] [2023-12-22 02:36:35,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289366106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:35,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:35,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:35,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608765320] [2023-12-22 02:36:35,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:35,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:35,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:35,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:35,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:35,367 INFO L87 Difference]: Start difference. First operand 7401 states and 8999 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:36,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:36,457 INFO L93 Difference]: Finished difference Result 8043 states and 10003 transitions. [2023-12-22 02:36:36,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:36:36,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:36,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:36,470 INFO L225 Difference]: With dead ends: 8043 [2023-12-22 02:36:36,470 INFO L226 Difference]: Without dead ends: 7401 [2023-12-22 02:36:36,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:36,473 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 831 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:36,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 959 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:36:36,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7401 states. [2023-12-22 02:36:37,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7401 to 7401. [2023-12-22 02:36:37,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7401 states, 5603 states have (on average 1.2502230947706585) internal successors, (7005), 5785 states have internal predecessors, (7005), 835 states have call successors, (835), 679 states have call predecessors, (835), 961 states have return successors, (1152), 938 states have call predecessors, (1152), 832 states have call successors, (1152) [2023-12-22 02:36:37,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7401 states to 7401 states and 8992 transitions. [2023-12-22 02:36:37,164 INFO L78 Accepts]: Start accepts. Automaton has 7401 states and 8992 transitions. Word has length 152 [2023-12-22 02:36:37,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:37,165 INFO L495 AbstractCegarLoop]: Abstraction has 7401 states and 8992 transitions. [2023-12-22 02:36:37,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:37,165 INFO L276 IsEmpty]: Start isEmpty. Operand 7401 states and 8992 transitions. [2023-12-22 02:36:37,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:37,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:37,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:37,176 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 (27)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:37,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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 [2023-12-22 02:36:37,370 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:37,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:37,370 INFO L85 PathProgramCache]: Analyzing trace with hash -997950105, now seen corresponding path program 1 times [2023-12-22 02:36:37,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:37,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120921809] [2023-12-22 02:36:37,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:37,371 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 [2023-12-22 02:36:37,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:37,372 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2023-12-22 02:36:37,407 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 (28)] Waiting until timeout for monitored process [2023-12-22 02:36:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:37,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:37,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:37,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:37,590 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:37,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:37,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120921809] [2023-12-22 02:36:37,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120921809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:37,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:37,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:37,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504120025] [2023-12-22 02:36:37,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:37,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:37,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:37,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:37,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:37,591 INFO L87 Difference]: Start difference. First operand 7401 states and 8992 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:38,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:38,760 INFO L93 Difference]: Finished difference Result 8043 states and 9989 transitions. [2023-12-22 02:36:38,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:36:38,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:38,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:38,777 INFO L225 Difference]: With dead ends: 8043 [2023-12-22 02:36:38,777 INFO L226 Difference]: Without dead ends: 7401 [2023-12-22 02:36:38,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:38,781 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 824 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:38,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [853 Valid, 952 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:36:38,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7401 states. [2023-12-22 02:36:39,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7401 to 7401. [2023-12-22 02:36:39,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7401 states, 5603 states have (on average 1.2489737640549705) internal successors, (6998), 5785 states have internal predecessors, (6998), 835 states have call successors, (835), 679 states have call predecessors, (835), 961 states have return successors, (1152), 938 states have call predecessors, (1152), 832 states have call successors, (1152) [2023-12-22 02:36:39,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7401 states to 7401 states and 8985 transitions. [2023-12-22 02:36:39,615 INFO L78 Accepts]: Start accepts. Automaton has 7401 states and 8985 transitions. Word has length 152 [2023-12-22 02:36:39,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:39,616 INFO L495 AbstractCegarLoop]: Abstraction has 7401 states and 8985 transitions. [2023-12-22 02:36:39,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:39,623 INFO L276 IsEmpty]: Start isEmpty. Operand 7401 states and 8985 transitions. [2023-12-22 02:36:39,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:39,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:39,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:39,633 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 (28)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:39,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /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 [2023-12-22 02:36:39,829 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:39,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:39,829 INFO L85 PathProgramCache]: Analyzing trace with hash -509902999, now seen corresponding path program 1 times [2023-12-22 02:36:39,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:39,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324490874] [2023-12-22 02:36:39,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:39,829 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 [2023-12-22 02:36:39,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:39,830 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2023-12-22 02:36:39,863 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 (29)] Waiting until timeout for monitored process [2023-12-22 02:36:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:39,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:39,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:40,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:40,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:40,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:40,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324490874] [2023-12-22 02:36:40,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324490874] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:40,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:40,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:40,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440311020] [2023-12-22 02:36:40,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:40,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:40,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:40,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:40,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:40,027 INFO L87 Difference]: Start difference. First operand 7401 states and 8985 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:41,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:41,322 INFO L93 Difference]: Finished difference Result 8197 states and 10227 transitions. [2023-12-22 02:36:41,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:36:41,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:41,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:41,336 INFO L225 Difference]: With dead ends: 8197 [2023-12-22 02:36:41,336 INFO L226 Difference]: Without dead ends: 7555 [2023-12-22 02:36:41,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:41,339 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 923 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:41,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [952 Valid, 946 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:36:41,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7555 states. [2023-12-22 02:36:42,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7555 to 7555. [2023-12-22 02:36:42,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7555 states, 5751 states have (on average 1.2535211267605635) internal successors, (7209), 5933 states have internal predecessors, (7209), 837 states have call successors, (837), 683 states have call predecessors, (837), 965 states have return successors, (1154), 940 states have call predecessors, (1154), 834 states have call successors, (1154) [2023-12-22 02:36:42,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7555 states to 7555 states and 9200 transitions. [2023-12-22 02:36:42,143 INFO L78 Accepts]: Start accepts. Automaton has 7555 states and 9200 transitions. Word has length 152 [2023-12-22 02:36:42,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:42,144 INFO L495 AbstractCegarLoop]: Abstraction has 7555 states and 9200 transitions. [2023-12-22 02:36:42,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:42,144 INFO L276 IsEmpty]: Start isEmpty. Operand 7555 states and 9200 transitions. [2023-12-22 02:36:42,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:42,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:42,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:42,153 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 (29)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:42,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /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 [2023-12-22 02:36:42,351 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:42,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:42,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1579905947, now seen corresponding path program 1 times [2023-12-22 02:36:42,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:42,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586964502] [2023-12-22 02:36:42,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:42,352 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 [2023-12-22 02:36:42,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:42,353 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2023-12-22 02:36:42,395 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 (30)] Waiting until timeout for monitored process [2023-12-22 02:36:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:42,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:42,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:42,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:42,553 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:42,553 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:42,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586964502] [2023-12-22 02:36:42,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [586964502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:42,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:42,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:42,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27780712] [2023-12-22 02:36:42,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:42,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:42,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:42,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:42,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:42,554 INFO L87 Difference]: Start difference. First operand 7555 states and 9200 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:43,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:43,821 INFO L93 Difference]: Finished difference Result 8505 states and 10657 transitions. [2023-12-22 02:36:43,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:36:43,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:43,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:43,838 INFO L225 Difference]: With dead ends: 8505 [2023-12-22 02:36:43,839 INFO L226 Difference]: Without dead ends: 7709 [2023-12-22 02:36:43,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:43,843 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 916 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:43,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 939 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:36:43,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7709 states. [2023-12-22 02:36:44,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7709 to 7709. [2023-12-22 02:36:44,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7709 states, 5899 states have (on average 1.2571622308865908) internal successors, (7416), 6081 states have internal predecessors, (7416), 839 states have call successors, (839), 687 states have call predecessors, (839), 969 states have return successors, (1156), 942 states have call predecessors, (1156), 836 states have call successors, (1156) [2023-12-22 02:36:44,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7709 states to 7709 states and 9411 transitions. [2023-12-22 02:36:44,677 INFO L78 Accepts]: Start accepts. Automaton has 7709 states and 9411 transitions. Word has length 152 [2023-12-22 02:36:44,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:44,677 INFO L495 AbstractCegarLoop]: Abstraction has 7709 states and 9411 transitions. [2023-12-22 02:36:44,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:44,678 INFO L276 IsEmpty]: Start isEmpty. Operand 7709 states and 9411 transitions. [2023-12-22 02:36:44,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:44,680 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:44,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:44,685 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 (30)] Ended with exit code 0 [2023-12-22 02:36:44,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /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 [2023-12-22 02:36:44,885 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:44,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:44,886 INFO L85 PathProgramCache]: Analyzing trace with hash 708525802, now seen corresponding path program 1 times [2023-12-22 02:36:44,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:44,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166448135] [2023-12-22 02:36:44,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:44,886 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 [2023-12-22 02:36:44,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:44,887 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2023-12-22 02:36:44,888 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 (31)] Waiting until timeout for monitored process [2023-12-22 02:36:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:45,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:45,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:45,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:45,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:45,083 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:45,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166448135] [2023-12-22 02:36:45,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166448135] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:45,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:45,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:45,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750660871] [2023-12-22 02:36:45,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:45,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:45,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:45,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:45,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:45,084 INFO L87 Difference]: Start difference. First operand 7709 states and 9411 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:46,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:46,433 INFO L93 Difference]: Finished difference Result 8813 states and 11079 transitions. [2023-12-22 02:36:46,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:36:46,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:46,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:46,446 INFO L225 Difference]: With dead ends: 8813 [2023-12-22 02:36:46,446 INFO L226 Difference]: Without dead ends: 7863 [2023-12-22 02:36:46,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:46,449 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 910 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:46,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 932 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:36:46,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7863 states. [2023-12-22 02:36:47,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7863 to 7863. [2023-12-22 02:36:47,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7863 states, 6047 states have (on average 1.2599636183231355) internal successors, (7619), 6229 states have internal predecessors, (7619), 841 states have call successors, (841), 691 states have call predecessors, (841), 973 states have return successors, (1158), 944 states have call predecessors, (1158), 838 states have call successors, (1158) [2023-12-22 02:36:47,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7863 states to 7863 states and 9618 transitions. [2023-12-22 02:36:47,290 INFO L78 Accepts]: Start accepts. Automaton has 7863 states and 9618 transitions. Word has length 152 [2023-12-22 02:36:47,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:47,290 INFO L495 AbstractCegarLoop]: Abstraction has 7863 states and 9618 transitions. [2023-12-22 02:36:47,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:47,291 INFO L276 IsEmpty]: Start isEmpty. Operand 7863 states and 9618 transitions. [2023-12-22 02:36:47,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:47,292 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:47,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:47,298 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 (31)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:47,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /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 [2023-12-22 02:36:47,498 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:47,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:47,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1643423002, now seen corresponding path program 1 times [2023-12-22 02:36:47,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:47,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1214008038] [2023-12-22 02:36:47,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:47,499 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 [2023-12-22 02:36:47,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:47,500 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2023-12-22 02:36:47,503 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 (32)] Waiting until timeout for monitored process [2023-12-22 02:36:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:47,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:47,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:47,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:47,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:47,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:47,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1214008038] [2023-12-22 02:36:47,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1214008038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:47,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:47,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:47,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563655083] [2023-12-22 02:36:47,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:47,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:47,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:47,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:47,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:47,694 INFO L87 Difference]: Start difference. First operand 7863 states and 9618 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:49,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:49,020 INFO L93 Difference]: Finished difference Result 9121 states and 11493 transitions. [2023-12-22 02:36:49,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:36:49,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:49,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:49,037 INFO L225 Difference]: With dead ends: 9121 [2023-12-22 02:36:49,037 INFO L226 Difference]: Without dead ends: 8017 [2023-12-22 02:36:49,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:49,042 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 903 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:49,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [932 Valid, 925 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:36:49,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8017 states. [2023-12-22 02:36:49,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8017 to 8017. [2023-12-22 02:36:49,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8017 states, 6195 states have (on average 1.2619854721549637) internal successors, (7818), 6377 states have internal predecessors, (7818), 843 states have call successors, (843), 695 states have call predecessors, (843), 977 states have return successors, (1160), 946 states have call predecessors, (1160), 840 states have call successors, (1160) [2023-12-22 02:36:50,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8017 states to 8017 states and 9821 transitions. [2023-12-22 02:36:50,002 INFO L78 Accepts]: Start accepts. Automaton has 8017 states and 9821 transitions. Word has length 152 [2023-12-22 02:36:50,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:50,002 INFO L495 AbstractCegarLoop]: Abstraction has 8017 states and 9821 transitions. [2023-12-22 02:36:50,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:50,002 INFO L276 IsEmpty]: Start isEmpty. Operand 8017 states and 9821 transitions. [2023-12-22 02:36:50,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:50,005 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:50,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:50,011 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 (32)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:50,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /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 [2023-12-22 02:36:50,214 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:50,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:50,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1466088363, now seen corresponding path program 1 times [2023-12-22 02:36:50,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:50,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107223705] [2023-12-22 02:36:50,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:50,215 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 [2023-12-22 02:36:50,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:50,216 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2023-12-22 02:36:50,216 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 (33)] Waiting until timeout for monitored process [2023-12-22 02:36:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:50,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:50,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:50,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:50,416 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:50,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:50,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107223705] [2023-12-22 02:36:50,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107223705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:50,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:50,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:50,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896363910] [2023-12-22 02:36:50,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:50,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:50,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:50,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:50,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:50,418 INFO L87 Difference]: Start difference. First operand 8017 states and 9821 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:51,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:51,822 INFO L93 Difference]: Finished difference Result 9429 states and 11899 transitions. [2023-12-22 02:36:51,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:36:51,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:51,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:51,846 INFO L225 Difference]: With dead ends: 9429 [2023-12-22 02:36:51,846 INFO L226 Difference]: Without dead ends: 8171 [2023-12-22 02:36:51,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:51,858 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 896 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:51,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 918 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:36:51,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8171 states. [2023-12-22 02:36:52,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8171 to 8171. [2023-12-22 02:36:52,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8171 states, 6343 states have (on average 1.2632823585054391) internal successors, (8013), 6525 states have internal predecessors, (8013), 845 states have call successors, (845), 699 states have call predecessors, (845), 981 states have return successors, (1162), 948 states have call predecessors, (1162), 842 states have call successors, (1162) [2023-12-22 02:36:52,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8171 states to 8171 states and 10020 transitions. [2023-12-22 02:36:52,836 INFO L78 Accepts]: Start accepts. Automaton has 8171 states and 10020 transitions. Word has length 152 [2023-12-22 02:36:52,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:52,837 INFO L495 AbstractCegarLoop]: Abstraction has 8171 states and 10020 transitions. [2023-12-22 02:36:52,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:52,837 INFO L276 IsEmpty]: Start isEmpty. Operand 8171 states and 10020 transitions. [2023-12-22 02:36:52,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:52,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:52,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:52,843 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 (33)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:53,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /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 [2023-12-22 02:36:53,041 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:53,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:53,042 INFO L85 PathProgramCache]: Analyzing trace with hash 740578758, now seen corresponding path program 1 times [2023-12-22 02:36:53,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:53,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185344762] [2023-12-22 02:36:53,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:53,042 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 [2023-12-22 02:36:53,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:53,044 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2023-12-22 02:36:53,044 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 (34)] Waiting until timeout for monitored process [2023-12-22 02:36:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:53,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:53,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:53,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:53,231 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:53,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:53,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185344762] [2023-12-22 02:36:53,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185344762] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:53,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:53,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:53,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652095570] [2023-12-22 02:36:53,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:53,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:53,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:53,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:53,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:53,232 INFO L87 Difference]: Start difference. First operand 8171 states and 10020 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:54,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:54,691 INFO L93 Difference]: Finished difference Result 9737 states and 12297 transitions. [2023-12-22 02:36:54,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:36:54,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:54,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:54,708 INFO L225 Difference]: With dead ends: 9737 [2023-12-22 02:36:54,708 INFO L226 Difference]: Without dead ends: 8325 [2023-12-22 02:36:54,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:54,711 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 889 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:54,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 911 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:36:54,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8325 states. [2023-12-22 02:36:55,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8325 to 8325. [2023-12-22 02:36:55,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8325 states, 6491 states have (on average 1.2639038668926206) internal successors, (8204), 6673 states have internal predecessors, (8204), 847 states have call successors, (847), 703 states have call predecessors, (847), 985 states have return successors, (1164), 950 states have call predecessors, (1164), 844 states have call successors, (1164) [2023-12-22 02:36:55,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8325 states to 8325 states and 10215 transitions. [2023-12-22 02:36:55,723 INFO L78 Accepts]: Start accepts. Automaton has 8325 states and 10215 transitions. Word has length 152 [2023-12-22 02:36:55,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:55,723 INFO L495 AbstractCegarLoop]: Abstraction has 8325 states and 10215 transitions. [2023-12-22 02:36:55,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:55,723 INFO L276 IsEmpty]: Start isEmpty. Operand 8325 states and 10215 transitions. [2023-12-22 02:36:55,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:55,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:55,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:55,731 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 (34)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:55,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /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 [2023-12-22 02:36:55,931 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:55,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:55,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1484907702, now seen corresponding path program 1 times [2023-12-22 02:36:55,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:55,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682192495] [2023-12-22 02:36:55,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:55,932 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 [2023-12-22 02:36:55,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:55,933 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2023-12-22 02:36:55,934 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 (35)] Waiting until timeout for monitored process [2023-12-22 02:36:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:56,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:56,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:56,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:56,139 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:56,139 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:56,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682192495] [2023-12-22 02:36:56,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1682192495] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:56,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:56,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:56,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469528495] [2023-12-22 02:36:56,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:56,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:56,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:56,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:56,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:56,141 INFO L87 Difference]: Start difference. First operand 8325 states and 10215 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:57,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:57,589 INFO L93 Difference]: Finished difference Result 10045 states and 12687 transitions. [2023-12-22 02:36:57,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:36:57,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:36:57,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:57,604 INFO L225 Difference]: With dead ends: 10045 [2023-12-22 02:36:57,605 INFO L226 Difference]: Without dead ends: 8479 [2023-12-22 02:36:57,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:57,609 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 881 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:57,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 904 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:36:57,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8479 states. [2023-12-22 02:36:58,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8479 to 8479. [2023-12-22 02:36:58,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8479 states, 6639 states have (on average 1.263895164934478) internal successors, (8391), 6821 states have internal predecessors, (8391), 849 states have call successors, (849), 707 states have call predecessors, (849), 989 states have return successors, (1166), 952 states have call predecessors, (1166), 846 states have call successors, (1166) [2023-12-22 02:36:58,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8479 states to 8479 states and 10406 transitions. [2023-12-22 02:36:58,633 INFO L78 Accepts]: Start accepts. Automaton has 8479 states and 10406 transitions. Word has length 152 [2023-12-22 02:36:58,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:58,633 INFO L495 AbstractCegarLoop]: Abstraction has 8479 states and 10406 transitions. [2023-12-22 02:36:58,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:36:58,634 INFO L276 IsEmpty]: Start isEmpty. Operand 8479 states and 10406 transitions. [2023-12-22 02:36:58,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:36:58,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:58,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:36:58,641 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 (35)] Ended with exit code 0 [2023-12-22 02:36:58,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /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 [2023-12-22 02:36:58,841 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:58,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:58,841 INFO L85 PathProgramCache]: Analyzing trace with hash 242237260, now seen corresponding path program 1 times [2023-12-22 02:36:58,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:58,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956984838] [2023-12-22 02:36:58,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:58,842 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 [2023-12-22 02:36:58,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:58,843 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2023-12-22 02:36:58,848 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 (36)] Waiting until timeout for monitored process [2023-12-22 02:36:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:58,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:58,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:59,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:36:59,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:59,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:59,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956984838] [2023-12-22 02:36:59,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956984838] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:59,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:59,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:59,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043170550] [2023-12-22 02:36:59,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:59,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:59,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:59,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:59,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:59,060 INFO L87 Difference]: Start difference. First operand 8479 states and 10406 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:00,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:00,643 INFO L93 Difference]: Finished difference Result 10353 states and 13069 transitions. [2023-12-22 02:37:00,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:00,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:00,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:00,660 INFO L225 Difference]: With dead ends: 10353 [2023-12-22 02:37:00,661 INFO L226 Difference]: Without dead ends: 8633 [2023-12-22 02:37:00,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:37:00,664 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 874 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:00,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 897 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:37:00,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8633 states. [2023-12-22 02:37:01,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8633 to 8633. [2023-12-22 02:37:01,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8633 states, 6787 states have (on average 1.2632974804773833) internal successors, (8574), 6969 states have internal predecessors, (8574), 851 states have call successors, (851), 711 states have call predecessors, (851), 993 states have return successors, (1168), 954 states have call predecessors, (1168), 848 states have call successors, (1168) [2023-12-22 02:37:01,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8633 states to 8633 states and 10593 transitions. [2023-12-22 02:37:01,764 INFO L78 Accepts]: Start accepts. Automaton has 8633 states and 10593 transitions. Word has length 152 [2023-12-22 02:37:01,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:01,764 INFO L495 AbstractCegarLoop]: Abstraction has 8633 states and 10593 transitions. [2023-12-22 02:37:01,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:01,764 INFO L276 IsEmpty]: Start isEmpty. Operand 8633 states and 10593 transitions. [2023-12-22 02:37:01,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:01,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:01,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:01,773 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 (36)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:01,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /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 [2023-12-22 02:37:01,971 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:01,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:01,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1637367015, now seen corresponding path program 1 times [2023-12-22 02:37:01,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:01,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152922601] [2023-12-22 02:37:01,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:01,972 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 [2023-12-22 02:37:01,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:01,973 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2023-12-22 02:37:01,975 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 (37)] Waiting until timeout for monitored process [2023-12-22 02:37:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:02,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:02,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:02,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:02,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:02,176 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:02,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152922601] [2023-12-22 02:37:02,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152922601] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:02,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:02,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:02,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455362034] [2023-12-22 02:37:02,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:02,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:02,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:02,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:02,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:02,177 INFO L87 Difference]: Start difference. First operand 8633 states and 10593 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:03,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:03,760 INFO L93 Difference]: Finished difference Result 10661 states and 13443 transitions. [2023-12-22 02:37:03,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:03,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:03,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:03,777 INFO L225 Difference]: With dead ends: 10661 [2023-12-22 02:37:03,777 INFO L226 Difference]: Without dead ends: 8787 [2023-12-22 02:37:03,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:37:03,782 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 867 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:03,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 890 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:37:03,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8787 states. [2023-12-22 02:37:04,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8787 to 8787. [2023-12-22 02:37:04,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8787 states, 6935 states have (on average 1.2621485219899062) internal successors, (8753), 7117 states have internal predecessors, (8753), 853 states have call successors, (853), 715 states have call predecessors, (853), 997 states have return successors, (1170), 956 states have call predecessors, (1170), 850 states have call successors, (1170) [2023-12-22 02:37:04,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8787 states to 8787 states and 10776 transitions. [2023-12-22 02:37:04,942 INFO L78 Accepts]: Start accepts. Automaton has 8787 states and 10776 transitions. Word has length 152 [2023-12-22 02:37:04,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:04,942 INFO L495 AbstractCegarLoop]: Abstraction has 8787 states and 10776 transitions. [2023-12-22 02:37:04,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:04,942 INFO L276 IsEmpty]: Start isEmpty. Operand 8787 states and 10776 transitions. [2023-12-22 02:37:04,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:04,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:04,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:04,950 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 (37)] Ended with exit code 0 [2023-12-22 02:37:05,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /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 [2023-12-22 02:37:05,150 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:05,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:05,151 INFO L85 PathProgramCache]: Analyzing trace with hash 412705899, now seen corresponding path program 1 times [2023-12-22 02:37:05,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:05,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687245502] [2023-12-22 02:37:05,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:05,151 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 [2023-12-22 02:37:05,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:05,153 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2023-12-22 02:37:05,181 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 (38)] Waiting until timeout for monitored process [2023-12-22 02:37:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:05,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:05,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:05,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:05,332 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:05,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:05,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687245502] [2023-12-22 02:37:05,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687245502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:05,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:05,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:05,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30580515] [2023-12-22 02:37:05,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:05,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:05,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:05,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:05,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:05,334 INFO L87 Difference]: Start difference. First operand 8787 states and 10776 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:06,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:06,988 INFO L93 Difference]: Finished difference Result 10969 states and 13809 transitions. [2023-12-22 02:37:06,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:06,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:06,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:07,004 INFO L225 Difference]: With dead ends: 10969 [2023-12-22 02:37:07,004 INFO L226 Difference]: Without dead ends: 8941 [2023-12-22 02:37:07,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:37:07,008 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 860 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:07,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 883 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:37:07,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8941 states. [2023-12-22 02:37:08,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8941 to 8941. [2023-12-22 02:37:08,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8941 states, 7083 states have (on average 1.2604828462515882) internal successors, (8928), 7265 states have internal predecessors, (8928), 855 states have call successors, (855), 719 states have call predecessors, (855), 1001 states have return successors, (1172), 958 states have call predecessors, (1172), 852 states have call successors, (1172) [2023-12-22 02:37:08,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8941 states to 8941 states and 10955 transitions. [2023-12-22 02:37:08,213 INFO L78 Accepts]: Start accepts. Automaton has 8941 states and 10955 transitions. Word has length 152 [2023-12-22 02:37:08,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:08,213 INFO L495 AbstractCegarLoop]: Abstraction has 8941 states and 10955 transitions. [2023-12-22 02:37:08,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:08,215 INFO L276 IsEmpty]: Start isEmpty. Operand 8941 states and 10955 transitions. [2023-12-22 02:37:08,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:08,220 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:08,220 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:08,225 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 (38)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:08,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /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 [2023-12-22 02:37:08,427 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:08,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:08,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1861475270, now seen corresponding path program 1 times [2023-12-22 02:37:08,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:08,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068185853] [2023-12-22 02:37:08,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:08,428 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 [2023-12-22 02:37:08,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:08,429 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2023-12-22 02:37:08,430 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 (39)] Waiting until timeout for monitored process [2023-12-22 02:37:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:08,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:08,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:08,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:08,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:08,618 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:08,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068185853] [2023-12-22 02:37:08,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068185853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:08,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:08,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:08,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221178478] [2023-12-22 02:37:08,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:08,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:08,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:08,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:08,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:08,619 INFO L87 Difference]: Start difference. First operand 8941 states and 10955 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:10,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:10,223 INFO L93 Difference]: Finished difference Result 11277 states and 14167 transitions. [2023-12-22 02:37:10,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:10,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:10,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:10,237 INFO L225 Difference]: With dead ends: 11277 [2023-12-22 02:37:10,237 INFO L226 Difference]: Without dead ends: 9095 [2023-12-22 02:37:10,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:37:10,239 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 853 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:10,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 876 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:37:10,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9095 states. [2023-12-22 02:37:11,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9095 to 9095. [2023-12-22 02:37:11,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9095 states, 7231 states have (on average 1.258332180887844) internal successors, (9099), 7413 states have internal predecessors, (9099), 857 states have call successors, (857), 723 states have call predecessors, (857), 1005 states have return successors, (1174), 960 states have call predecessors, (1174), 854 states have call successors, (1174) [2023-12-22 02:37:11,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9095 states to 9095 states and 11130 transitions. [2023-12-22 02:37:11,403 INFO L78 Accepts]: Start accepts. Automaton has 9095 states and 11130 transitions. Word has length 152 [2023-12-22 02:37:11,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:11,403 INFO L495 AbstractCegarLoop]: Abstraction has 9095 states and 11130 transitions. [2023-12-22 02:37:11,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:11,403 INFO L276 IsEmpty]: Start isEmpty. Operand 9095 states and 11130 transitions. [2023-12-22 02:37:11,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:11,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:11,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:11,410 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 (39)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:11,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /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 [2023-12-22 02:37:11,608 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:11,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:11,608 INFO L85 PathProgramCache]: Analyzing trace with hash 602150283, now seen corresponding path program 1 times [2023-12-22 02:37:11,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:11,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219845539] [2023-12-22 02:37:11,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:11,609 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 [2023-12-22 02:37:11,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:11,610 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2023-12-22 02:37:11,616 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 (40)] Waiting until timeout for monitored process [2023-12-22 02:37:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:11,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:11,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:11,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:11,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:11,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:11,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219845539] [2023-12-22 02:37:11,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219845539] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:11,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:11,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:11,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302342855] [2023-12-22 02:37:11,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:11,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:11,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:11,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:11,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:11,757 INFO L87 Difference]: Start difference. First operand 9095 states and 11130 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:12,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:12,962 INFO L93 Difference]: Finished difference Result 11570 states and 14496 transitions. [2023-12-22 02:37:12,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:12,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:12,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:12,977 INFO L225 Difference]: With dead ends: 11570 [2023-12-22 02:37:12,978 INFO L226 Difference]: Without dead ends: 9235 [2023-12-22 02:37:12,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:12,987 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 101 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:12,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1620 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:12,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9235 states. [2023-12-22 02:37:14,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9235 to 9099. [2023-12-22 02:37:14,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9099 states, 7235 states have (on average 1.255148583275743) internal successors, (9081), 7417 states have internal predecessors, (9081), 857 states have call successors, (857), 723 states have call predecessors, (857), 1005 states have return successors, (1174), 960 states have call predecessors, (1174), 854 states have call successors, (1174) [2023-12-22 02:37:14,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9099 states to 9099 states and 11112 transitions. [2023-12-22 02:37:14,227 INFO L78 Accepts]: Start accepts. Automaton has 9099 states and 11112 transitions. Word has length 152 [2023-12-22 02:37:14,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:14,227 INFO L495 AbstractCegarLoop]: Abstraction has 9099 states and 11112 transitions. [2023-12-22 02:37:14,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:14,227 INFO L276 IsEmpty]: Start isEmpty. Operand 9099 states and 11112 transitions. [2023-12-22 02:37:14,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:14,229 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:14,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:14,237 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 (40)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:14,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /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 [2023-12-22 02:37:14,435 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:14,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:14,436 INFO L85 PathProgramCache]: Analyzing trace with hash -704992115, now seen corresponding path program 1 times [2023-12-22 02:37:14,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:14,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042173119] [2023-12-22 02:37:14,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:14,436 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 [2023-12-22 02:37:14,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:14,437 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2023-12-22 02:37:14,439 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 (41)] Waiting until timeout for monitored process [2023-12-22 02:37:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:14,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:14,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:14,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:14,574 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:14,574 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:14,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042173119] [2023-12-22 02:37:14,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042173119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:14,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:14,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:14,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726980506] [2023-12-22 02:37:14,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:14,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:14,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:14,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:14,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:14,576 INFO L87 Difference]: Start difference. First operand 9099 states and 11112 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:15,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:15,839 INFO L93 Difference]: Finished difference Result 11566 states and 14444 transitions. [2023-12-22 02:37:15,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:15,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:15,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:15,881 INFO L225 Difference]: With dead ends: 11566 [2023-12-22 02:37:15,881 INFO L226 Difference]: Without dead ends: 9227 [2023-12-22 02:37:15,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:15,886 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 92 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:15,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1624 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:15,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9227 states. [2023-12-22 02:37:17,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9227 to 9103. [2023-12-22 02:37:17,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9103 states, 7239 states have (on average 1.2519685039370079) internal successors, (9063), 7421 states have internal predecessors, (9063), 857 states have call successors, (857), 723 states have call predecessors, (857), 1005 states have return successors, (1174), 960 states have call predecessors, (1174), 854 states have call successors, (1174) [2023-12-22 02:37:17,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9103 states to 9103 states and 11094 transitions. [2023-12-22 02:37:17,089 INFO L78 Accepts]: Start accepts. Automaton has 9103 states and 11094 transitions. Word has length 152 [2023-12-22 02:37:17,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:17,089 INFO L495 AbstractCegarLoop]: Abstraction has 9103 states and 11094 transitions. [2023-12-22 02:37:17,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:17,089 INFO L276 IsEmpty]: Start isEmpty. Operand 9103 states and 11094 transitions. [2023-12-22 02:37:17,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:17,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:17,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:17,096 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 (41)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:17,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /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 [2023-12-22 02:37:17,293 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:17,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:17,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1761723317, now seen corresponding path program 1 times [2023-12-22 02:37:17,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:17,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359737471] [2023-12-22 02:37:17,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:17,294 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 [2023-12-22 02:37:17,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:17,295 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2023-12-22 02:37:17,296 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 (42)] Waiting until timeout for monitored process [2023-12-22 02:37:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:17,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:17,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:17,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:17,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:17,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:17,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359737471] [2023-12-22 02:37:17,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359737471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:17,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:17,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:17,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157887864] [2023-12-22 02:37:17,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:17,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:17,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:17,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:17,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:17,435 INFO L87 Difference]: Start difference. First operand 9103 states and 11094 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:18,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:18,695 INFO L93 Difference]: Finished difference Result 11562 states and 14392 transitions. [2023-12-22 02:37:18,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:18,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:18,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:18,710 INFO L225 Difference]: With dead ends: 11562 [2023-12-22 02:37:18,710 INFO L226 Difference]: Without dead ends: 9219 [2023-12-22 02:37:18,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:18,714 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 83 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:18,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1622 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:18,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9219 states. [2023-12-22 02:37:19,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9219 to 9107. [2023-12-22 02:37:19,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9107 states, 7243 states have (on average 1.248791937042662) internal successors, (9045), 7425 states have internal predecessors, (9045), 857 states have call successors, (857), 723 states have call predecessors, (857), 1005 states have return successors, (1174), 960 states have call predecessors, (1174), 854 states have call successors, (1174) [2023-12-22 02:37:19,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9107 states to 9107 states and 11076 transitions. [2023-12-22 02:37:19,996 INFO L78 Accepts]: Start accepts. Automaton has 9107 states and 11076 transitions. Word has length 152 [2023-12-22 02:37:19,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:19,996 INFO L495 AbstractCegarLoop]: Abstraction has 9107 states and 11076 transitions. [2023-12-22 02:37:19,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:19,996 INFO L276 IsEmpty]: Start isEmpty. Operand 9107 states and 11076 transitions. [2023-12-22 02:37:19,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:19,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:19,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:20,002 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 (42)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:20,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /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 [2023-12-22 02:37:20,201 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:20,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:20,202 INFO L85 PathProgramCache]: Analyzing trace with hash 592661965, now seen corresponding path program 1 times [2023-12-22 02:37:20,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:20,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316887008] [2023-12-22 02:37:20,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:20,202 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 [2023-12-22 02:37:20,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:20,204 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2023-12-22 02:37:20,205 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 (43)] Waiting until timeout for monitored process [2023-12-22 02:37:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:20,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:20,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:20,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:20,351 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:20,352 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:20,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316887008] [2023-12-22 02:37:20,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316887008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:20,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:20,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:20,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51141855] [2023-12-22 02:37:20,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:20,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:20,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:20,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:20,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:20,353 INFO L87 Difference]: Start difference. First operand 9107 states and 11076 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:21,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:21,613 INFO L93 Difference]: Finished difference Result 11558 states and 14340 transitions. [2023-12-22 02:37:21,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:21,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:21,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:21,632 INFO L225 Difference]: With dead ends: 11558 [2023-12-22 02:37:21,632 INFO L226 Difference]: Without dead ends: 9211 [2023-12-22 02:37:21,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:21,637 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 74 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:21,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1623 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:21,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9211 states. [2023-12-22 02:37:23,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9211 to 9111. [2023-12-22 02:37:23,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9111 states, 7247 states have (on average 1.2456188767765972) internal successors, (9027), 7429 states have internal predecessors, (9027), 857 states have call successors, (857), 723 states have call predecessors, (857), 1005 states have return successors, (1174), 960 states have call predecessors, (1174), 854 states have call successors, (1174) [2023-12-22 02:37:23,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9111 states to 9111 states and 11058 transitions. [2023-12-22 02:37:23,083 INFO L78 Accepts]: Start accepts. Automaton has 9111 states and 11058 transitions. Word has length 152 [2023-12-22 02:37:23,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:23,083 INFO L495 AbstractCegarLoop]: Abstraction has 9111 states and 11058 transitions. [2023-12-22 02:37:23,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:23,083 INFO L276 IsEmpty]: Start isEmpty. Operand 9111 states and 11058 transitions. [2023-12-22 02:37:23,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:23,085 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:23,085 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:23,091 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 (43)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:23,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /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 [2023-12-22 02:37:23,292 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:23,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:23,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1365912821, now seen corresponding path program 1 times [2023-12-22 02:37:23,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:23,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235542161] [2023-12-22 02:37:23,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:23,292 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 [2023-12-22 02:37:23,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:23,295 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2023-12-22 02:37:23,297 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 (44)] Waiting until timeout for monitored process [2023-12-22 02:37:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:23,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:23,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:23,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:23,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:23,435 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:23,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [235542161] [2023-12-22 02:37:23,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [235542161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:23,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:23,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:23,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917752470] [2023-12-22 02:37:23,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:23,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:23,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:23,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:23,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:23,436 INFO L87 Difference]: Start difference. First operand 9111 states and 11058 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:24,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:24,746 INFO L93 Difference]: Finished difference Result 11554 states and 14288 transitions. [2023-12-22 02:37:24,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:24,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:24,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:24,763 INFO L225 Difference]: With dead ends: 11554 [2023-12-22 02:37:24,763 INFO L226 Difference]: Without dead ends: 9203 [2023-12-22 02:37:24,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:24,767 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 65 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:24,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1624 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:37:24,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9203 states. [2023-12-22 02:37:25,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9203 to 9115. [2023-12-22 02:37:25,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9115 states, 7251 states have (on average 1.24244931733554) internal successors, (9009), 7433 states have internal predecessors, (9009), 857 states have call successors, (857), 723 states have call predecessors, (857), 1005 states have return successors, (1174), 960 states have call predecessors, (1174), 854 states have call successors, (1174) [2023-12-22 02:37:25,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9115 states to 9115 states and 11040 transitions. [2023-12-22 02:37:25,999 INFO L78 Accepts]: Start accepts. Automaton has 9115 states and 11040 transitions. Word has length 152 [2023-12-22 02:37:25,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:26,001 INFO L495 AbstractCegarLoop]: Abstraction has 9115 states and 11040 transitions. [2023-12-22 02:37:26,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:26,001 INFO L276 IsEmpty]: Start isEmpty. Operand 9115 states and 11040 transitions. [2023-12-22 02:37:26,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:26,003 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:26,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:26,009 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 (44)] Ended with exit code 0 [2023-12-22 02:37:26,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /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 [2023-12-22 02:37:26,212 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:26,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:26,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1871216397, now seen corresponding path program 1 times [2023-12-22 02:37:26,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:26,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2028124385] [2023-12-22 02:37:26,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:26,222 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 [2023-12-22 02:37:26,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:26,223 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2023-12-22 02:37:26,224 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 (45)] Waiting until timeout for monitored process [2023-12-22 02:37:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:26,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:37:26,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:26,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:26,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:26,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:26,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2028124385] [2023-12-22 02:37:26,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2028124385] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:26,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:26,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:37:26,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200224450] [2023-12-22 02:37:26,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:26,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:37:26,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:26,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:37:26,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:37:26,468 INFO L87 Difference]: Start difference. First operand 9115 states and 11040 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:28,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:28,155 INFO L93 Difference]: Finished difference Result 13640 states and 16908 transitions. [2023-12-22 02:37:28,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:37:28,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:28,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:28,190 INFO L225 Difference]: With dead ends: 13640 [2023-12-22 02:37:28,190 INFO L226 Difference]: Without dead ends: 11285 [2023-12-22 02:37:28,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:37:28,198 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 505 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:28,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 997 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:28,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11285 states. [2023-12-22 02:37:29,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11285 to 11279. [2023-12-22 02:37:29,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11279 states, 9303 states have (on average 1.2517467483607438) internal successors, (11645), 9486 states have internal predecessors, (11645), 916 states have call successors, (916), 775 states have call predecessors, (916), 1058 states have return successors, (1234), 1019 states have call predecessors, (1234), 913 states have call successors, (1234) [2023-12-22 02:37:29,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11279 states to 11279 states and 13795 transitions. [2023-12-22 02:37:29,522 INFO L78 Accepts]: Start accepts. Automaton has 11279 states and 13795 transitions. Word has length 152 [2023-12-22 02:37:29,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:29,522 INFO L495 AbstractCegarLoop]: Abstraction has 11279 states and 13795 transitions. [2023-12-22 02:37:29,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:29,522 INFO L276 IsEmpty]: Start isEmpty. Operand 11279 states and 13795 transitions. [2023-12-22 02:37:29,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:29,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:29,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:29,533 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 (45)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:29,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /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 [2023-12-22 02:37:29,729 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:29,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:29,730 INFO L85 PathProgramCache]: Analyzing trace with hash -756631316, now seen corresponding path program 1 times [2023-12-22 02:37:29,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:29,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513192699] [2023-12-22 02:37:29,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:29,730 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 [2023-12-22 02:37:29,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:29,731 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2023-12-22 02:37:29,763 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 (46)] Waiting until timeout for monitored process [2023-12-22 02:37:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:29,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:29,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:29,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:29,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:29,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:29,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513192699] [2023-12-22 02:37:29,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513192699] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:29,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:29,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:29,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528909898] [2023-12-22 02:37:29,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:29,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:29,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:29,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:29,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:29,866 INFO L87 Difference]: Start difference. First operand 11279 states and 13795 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:31,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:31,190 INFO L93 Difference]: Finished difference Result 16614 states and 20778 transitions. [2023-12-22 02:37:31,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:31,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:31,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:31,211 INFO L225 Difference]: With dead ends: 16614 [2023-12-22 02:37:31,211 INFO L226 Difference]: Without dead ends: 12095 [2023-12-22 02:37:31,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:31,218 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 47 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:31,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1638 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:31,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12095 states. [2023-12-22 02:37:32,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12095 to 11327. [2023-12-22 02:37:32,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11327 states, 9351 states have (on average 1.2481018072933376) internal successors, (11671), 9534 states have internal predecessors, (11671), 916 states have call successors, (916), 775 states have call predecessors, (916), 1058 states have return successors, (1234), 1019 states have call predecessors, (1234), 913 states have call successors, (1234) [2023-12-22 02:37:32,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11327 states to 11327 states and 13821 transitions. [2023-12-22 02:37:32,523 INFO L78 Accepts]: Start accepts. Automaton has 11327 states and 13821 transitions. Word has length 152 [2023-12-22 02:37:32,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:32,524 INFO L495 AbstractCegarLoop]: Abstraction has 11327 states and 13821 transitions. [2023-12-22 02:37:32,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:32,524 INFO L276 IsEmpty]: Start isEmpty. Operand 11327 states and 13821 transitions. [2023-12-22 02:37:32,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:32,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:32,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:32,532 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 (46)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:32,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /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 [2023-12-22 02:37:32,731 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:32,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:32,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1723981970, now seen corresponding path program 1 times [2023-12-22 02:37:32,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:32,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946898440] [2023-12-22 02:37:32,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:32,732 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 [2023-12-22 02:37:32,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:32,733 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2023-12-22 02:37:32,763 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 (47)] Waiting until timeout for monitored process [2023-12-22 02:37:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:32,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:32,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:32,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:32,861 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:32,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:32,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946898440] [2023-12-22 02:37:32,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946898440] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:32,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:32,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:32,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18455177] [2023-12-22 02:37:32,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:32,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:32,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:32,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:32,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:32,862 INFO L87 Difference]: Start difference. First operand 11327 states and 13821 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:34,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:34,173 INFO L93 Difference]: Finished difference Result 15950 states and 19811 transitions. [2023-12-22 02:37:34,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:34,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:34,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:34,194 INFO L225 Difference]: With dead ends: 15950 [2023-12-22 02:37:34,194 INFO L226 Difference]: Without dead ends: 11383 [2023-12-22 02:37:34,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:34,202 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 38 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:34,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1626 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:34,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11383 states. [2023-12-22 02:37:35,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11383 to 11331. [2023-12-22 02:37:35,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11331 states, 9355 states have (on average 1.2432923570283272) internal successors, (11631), 9538 states have internal predecessors, (11631), 916 states have call successors, (916), 775 states have call predecessors, (916), 1058 states have return successors, (1234), 1019 states have call predecessors, (1234), 913 states have call successors, (1234) [2023-12-22 02:37:35,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11331 states to 11331 states and 13781 transitions. [2023-12-22 02:37:35,508 INFO L78 Accepts]: Start accepts. Automaton has 11331 states and 13781 transitions. Word has length 152 [2023-12-22 02:37:35,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:35,508 INFO L495 AbstractCegarLoop]: Abstraction has 11331 states and 13781 transitions. [2023-12-22 02:37:35,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:35,508 INFO L276 IsEmpty]: Start isEmpty. Operand 11331 states and 13781 transitions. [2023-12-22 02:37:35,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:35,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:35,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:35,516 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 (47)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:35,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /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 [2023-12-22 02:37:35,716 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:35,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:35,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1839017900, now seen corresponding path program 1 times [2023-12-22 02:37:35,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:35,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136725736] [2023-12-22 02:37:35,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:35,717 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 [2023-12-22 02:37:35,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:35,718 INFO L229 MonitoredProcess]: Starting monitored process 48 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) [2023-12-22 02:37:35,719 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 (48)] Waiting until timeout for monitored process [2023-12-22 02:37:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:35,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:35,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:35,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:35,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:35,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:35,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136725736] [2023-12-22 02:37:35,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136725736] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:35,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:35,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:35,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17711595] [2023-12-22 02:37:35,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:35,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:35,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:35,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:35,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:35,859 INFO L87 Difference]: Start difference. First operand 11331 states and 13781 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:37,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:37,214 INFO L93 Difference]: Finished difference Result 15990 states and 19773 transitions. [2023-12-22 02:37:37,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:37,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:37,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:37,237 INFO L225 Difference]: With dead ends: 15990 [2023-12-22 02:37:37,241 INFO L226 Difference]: Without dead ends: 11419 [2023-12-22 02:37:37,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:37,249 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 29 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:37,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1627 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:37,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11419 states. [2023-12-22 02:37:38,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11419 to 11339. [2023-12-22 02:37:38,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11339 states, 9363 states have (on average 1.2385987397201752) internal successors, (11597), 9546 states have internal predecessors, (11597), 916 states have call successors, (916), 775 states have call predecessors, (916), 1058 states have return successors, (1234), 1019 states have call predecessors, (1234), 913 states have call successors, (1234) [2023-12-22 02:37:38,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11339 states to 11339 states and 13747 transitions. [2023-12-22 02:37:38,594 INFO L78 Accepts]: Start accepts. Automaton has 11339 states and 13747 transitions. Word has length 152 [2023-12-22 02:37:38,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:38,594 INFO L495 AbstractCegarLoop]: Abstraction has 11339 states and 13747 transitions. [2023-12-22 02:37:38,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:38,594 INFO L276 IsEmpty]: Start isEmpty. Operand 11339 states and 13747 transitions. [2023-12-22 02:37:38,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:38,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:38,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:38,603 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 (48)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:38,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /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 [2023-12-22 02:37:38,801 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:38,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:38,802 INFO L85 PathProgramCache]: Analyzing trace with hash -494374738, now seen corresponding path program 1 times [2023-12-22 02:37:38,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:38,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215163074] [2023-12-22 02:37:38,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:38,802 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 [2023-12-22 02:37:38,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:38,803 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2023-12-22 02:37:38,804 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 (49)] Waiting until timeout for monitored process [2023-12-22 02:37:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:38,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:38,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:38,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:38,961 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:38,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:38,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215163074] [2023-12-22 02:37:38,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215163074] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:38,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:38,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:38,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49516906] [2023-12-22 02:37:38,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:38,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:38,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:38,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:38,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:38,963 INFO L87 Difference]: Start difference. First operand 11339 states and 13747 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:40,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:40,444 INFO L93 Difference]: Finished difference Result 15982 states and 19673 transitions. [2023-12-22 02:37:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:40,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:40,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:40,460 INFO L225 Difference]: With dead ends: 15982 [2023-12-22 02:37:40,460 INFO L226 Difference]: Without dead ends: 11403 [2023-12-22 02:37:40,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:40,465 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 20 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:40,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1628 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:40,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11403 states. [2023-12-22 02:37:41,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11403 to 11347. [2023-12-22 02:37:41,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11347 states, 9371 states have (on average 1.233913136271476) internal successors, (11563), 9554 states have internal predecessors, (11563), 916 states have call successors, (916), 775 states have call predecessors, (916), 1058 states have return successors, (1234), 1019 states have call predecessors, (1234), 913 states have call successors, (1234) [2023-12-22 02:37:41,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11347 states to 11347 states and 13713 transitions. [2023-12-22 02:37:41,778 INFO L78 Accepts]: Start accepts. Automaton has 11347 states and 13713 transitions. Word has length 152 [2023-12-22 02:37:41,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:41,778 INFO L495 AbstractCegarLoop]: Abstraction has 11347 states and 13713 transitions. [2023-12-22 02:37:41,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:41,779 INFO L276 IsEmpty]: Start isEmpty. Operand 11347 states and 13713 transitions. [2023-12-22 02:37:41,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:41,780 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:41,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:41,786 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 (49)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:41,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /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 [2023-12-22 02:37:41,986 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:41,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:41,987 INFO L85 PathProgramCache]: Analyzing trace with hash -453699988, now seen corresponding path program 1 times [2023-12-22 02:37:41,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:41,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108380667] [2023-12-22 02:37:41,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:41,987 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 [2023-12-22 02:37:41,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:41,989 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2023-12-22 02:37:41,990 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 (50)] Waiting until timeout for monitored process [2023-12-22 02:37:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:42,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:42,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:42,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:42,127 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:42,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:42,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108380667] [2023-12-22 02:37:42,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108380667] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:42,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:42,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:42,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975478071] [2023-12-22 02:37:42,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:42,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:42,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:42,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:42,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:42,128 INFO L87 Difference]: Start difference. First operand 11347 states and 13713 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:43,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:43,432 INFO L93 Difference]: Finished difference Result 15974 states and 19573 transitions. [2023-12-22 02:37:43,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:43,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:43,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:43,448 INFO L225 Difference]: With dead ends: 15974 [2023-12-22 02:37:43,448 INFO L226 Difference]: Without dead ends: 11387 [2023-12-22 02:37:43,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:43,453 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 11 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:43,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1629 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:43,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11387 states. [2023-12-22 02:37:44,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11387 to 11355. [2023-12-22 02:37:44,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11355 states, 9379 states have (on average 1.2292355261754984) internal successors, (11529), 9562 states have internal predecessors, (11529), 916 states have call successors, (916), 775 states have call predecessors, (916), 1058 states have return successors, (1234), 1019 states have call predecessors, (1234), 913 states have call successors, (1234) [2023-12-22 02:37:44,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11355 states to 11355 states and 13679 transitions. [2023-12-22 02:37:44,713 INFO L78 Accepts]: Start accepts. Automaton has 11355 states and 13679 transitions. Word has length 152 [2023-12-22 02:37:44,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:44,713 INFO L495 AbstractCegarLoop]: Abstraction has 11355 states and 13679 transitions. [2023-12-22 02:37:44,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:44,714 INFO L276 IsEmpty]: Start isEmpty. Operand 11355 states and 13679 transitions. [2023-12-22 02:37:44,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:44,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:44,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:44,720 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 (50)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:44,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /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 [2023-12-22 02:37:44,920 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:44,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:44,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1812681198, now seen corresponding path program 1 times [2023-12-22 02:37:44,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:44,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256055518] [2023-12-22 02:37:44,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:44,921 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 [2023-12-22 02:37:44,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:44,922 INFO L229 MonitoredProcess]: Starting monitored process 51 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) [2023-12-22 02:37:44,926 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 (51)] Waiting until timeout for monitored process [2023-12-22 02:37:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:45,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:45,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:45,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:45,090 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:45,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:45,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256055518] [2023-12-22 02:37:45,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256055518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:45,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:45,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:45,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900174863] [2023-12-22 02:37:45,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:45,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:45,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:45,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:45,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:45,092 INFO L87 Difference]: Start difference. First operand 11355 states and 13679 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:46,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:46,405 INFO L93 Difference]: Finished difference Result 15966 states and 19473 transitions. [2023-12-22 02:37:46,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:46,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:46,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:46,423 INFO L225 Difference]: With dead ends: 15966 [2023-12-22 02:37:46,423 INFO L226 Difference]: Without dead ends: 11371 [2023-12-22 02:37:46,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:46,429 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 2 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:46,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1630 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:46,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11371 states. [2023-12-22 02:37:47,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11371 to 11363. [2023-12-22 02:37:47,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11363 states, 9387 states have (on average 1.2245658889954192) internal successors, (11495), 9570 states have internal predecessors, (11495), 916 states have call successors, (916), 775 states have call predecessors, (916), 1058 states have return successors, (1234), 1019 states have call predecessors, (1234), 913 states have call successors, (1234) [2023-12-22 02:37:47,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11363 states to 11363 states and 13645 transitions. [2023-12-22 02:37:47,765 INFO L78 Accepts]: Start accepts. Automaton has 11363 states and 13645 transitions. Word has length 152 [2023-12-22 02:37:47,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:47,765 INFO L495 AbstractCegarLoop]: Abstraction has 11363 states and 13645 transitions. [2023-12-22 02:37:47,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:47,765 INFO L276 IsEmpty]: Start isEmpty. Operand 11363 states and 13645 transitions. [2023-12-22 02:37:47,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:47,767 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:47,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:47,772 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 (51)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:47,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /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 [2023-12-22 02:37:47,968 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:47,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:47,969 INFO L85 PathProgramCache]: Analyzing trace with hash -554013396, now seen corresponding path program 1 times [2023-12-22 02:37:47,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:47,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [923608955] [2023-12-22 02:37:47,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:47,969 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 [2023-12-22 02:37:47,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:47,971 INFO L229 MonitoredProcess]: Starting monitored process 52 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) [2023-12-22 02:37:47,972 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 (52)] Waiting until timeout for monitored process [2023-12-22 02:37:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:48,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:37:48,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:48,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:48,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:48,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:48,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [923608955] [2023-12-22 02:37:48,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [923608955] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:48,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:48,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:48,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106060679] [2023-12-22 02:37:48,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:48,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:48,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:48,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:48,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:48,249 INFO L87 Difference]: Start difference. First operand 11363 states and 13645 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:49,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:49,949 INFO L93 Difference]: Finished difference Result 15967 states and 19300 transitions. [2023-12-22 02:37:49,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:49,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:49,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:49,968 INFO L225 Difference]: With dead ends: 15967 [2023-12-22 02:37:49,968 INFO L226 Difference]: Without dead ends: 11363 [2023-12-22 02:37:49,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:37:49,973 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 686 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:49,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 868 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:37:49,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11363 states. [2023-12-22 02:37:51,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11363 to 11363. [2023-12-22 02:37:51,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11363 states, 9387 states have (on average 1.223074464685203) internal successors, (11481), 9570 states have internal predecessors, (11481), 916 states have call successors, (916), 775 states have call predecessors, (916), 1058 states have return successors, (1234), 1019 states have call predecessors, (1234), 913 states have call successors, (1234) [2023-12-22 02:37:51,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11363 states to 11363 states and 13631 transitions. [2023-12-22 02:37:51,287 INFO L78 Accepts]: Start accepts. Automaton has 11363 states and 13631 transitions. Word has length 152 [2023-12-22 02:37:51,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:51,287 INFO L495 AbstractCegarLoop]: Abstraction has 11363 states and 13631 transitions. [2023-12-22 02:37:51,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:51,287 INFO L276 IsEmpty]: Start isEmpty. Operand 11363 states and 13631 transitions. [2023-12-22 02:37:51,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:51,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:51,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:51,297 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 (52)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:51,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /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 [2023-12-22 02:37:51,495 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:51,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:51,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1925820694, now seen corresponding path program 1 times [2023-12-22 02:37:51,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:51,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489406473] [2023-12-22 02:37:51,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:51,496 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 [2023-12-22 02:37:51,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:51,497 INFO L229 MonitoredProcess]: Starting monitored process 53 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) [2023-12-22 02:37:51,498 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 (53)] Waiting until timeout for monitored process [2023-12-22 02:37:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:51,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:37:51,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:51,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:51,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:51,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:51,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489406473] [2023-12-22 02:37:51,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489406473] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:51,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:51,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:51,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543623978] [2023-12-22 02:37:51,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:51,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:51,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:51,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:51,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:51,797 INFO L87 Difference]: Start difference. First operand 11363 states and 13631 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:53,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:53,467 INFO L93 Difference]: Finished difference Result 15967 states and 19272 transitions. [2023-12-22 02:37:53,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:53,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:53,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:53,483 INFO L225 Difference]: With dead ends: 15967 [2023-12-22 02:37:53,483 INFO L226 Difference]: Without dead ends: 11363 [2023-12-22 02:37:53,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:37:53,488 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 673 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:53,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 861 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:37:53,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11363 states. [2023-12-22 02:37:54,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11363 to 11363. [2023-12-22 02:37:54,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11363 states, 9387 states have (on average 1.2215830403749868) internal successors, (11467), 9570 states have internal predecessors, (11467), 916 states have call successors, (916), 775 states have call predecessors, (916), 1058 states have return successors, (1234), 1019 states have call predecessors, (1234), 913 states have call successors, (1234) [2023-12-22 02:37:54,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11363 states to 11363 states and 13617 transitions. [2023-12-22 02:37:54,856 INFO L78 Accepts]: Start accepts. Automaton has 11363 states and 13617 transitions. Word has length 152 [2023-12-22 02:37:54,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:54,857 INFO L495 AbstractCegarLoop]: Abstraction has 11363 states and 13617 transitions. [2023-12-22 02:37:54,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:54,857 INFO L276 IsEmpty]: Start isEmpty. Operand 11363 states and 13617 transitions. [2023-12-22 02:37:54,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:54,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:54,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:54,864 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 (53)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:55,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /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 [2023-12-22 02:37:55,061 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:55,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:55,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1651061080, now seen corresponding path program 1 times [2023-12-22 02:37:55,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:55,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209419851] [2023-12-22 02:37:55,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:55,062 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 [2023-12-22 02:37:55,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:55,063 INFO L229 MonitoredProcess]: Starting monitored process 54 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) [2023-12-22 02:37:55,065 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 (54)] Waiting until timeout for monitored process [2023-12-22 02:37:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:55,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:37:55,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:55,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:55,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:55,321 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:55,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1209419851] [2023-12-22 02:37:55,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1209419851] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:55,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:55,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:55,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107417073] [2023-12-22 02:37:55,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:55,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:55,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:55,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:55,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:55,323 INFO L87 Difference]: Start difference. First operand 11363 states and 13617 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:57,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:57,229 INFO L93 Difference]: Finished difference Result 16285 states and 19645 transitions. [2023-12-22 02:37:57,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:37:57,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:37:57,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:57,254 INFO L225 Difference]: With dead ends: 16285 [2023-12-22 02:37:57,254 INFO L226 Difference]: Without dead ends: 11681 [2023-12-22 02:37:57,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:37:57,263 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 783 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:57,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 856 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:37:57,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11681 states. [2023-12-22 02:37:58,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11681 to 11613. [2023-12-22 02:37:58,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11613 states, 9633 states have (on average 1.21509394788747) internal successors, (11705), 9816 states have internal predecessors, (11705), 916 states have call successors, (916), 779 states have call predecessors, (916), 1062 states have return successors, (1234), 1019 states have call predecessors, (1234), 913 states have call successors, (1234) [2023-12-22 02:37:58,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11613 states to 11613 states and 13855 transitions. [2023-12-22 02:37:58,683 INFO L78 Accepts]: Start accepts. Automaton has 11613 states and 13855 transitions. Word has length 152 [2023-12-22 02:37:58,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:58,683 INFO L495 AbstractCegarLoop]: Abstraction has 11613 states and 13855 transitions. [2023-12-22 02:37:58,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:37:58,684 INFO L276 IsEmpty]: Start isEmpty. Operand 11613 states and 13855 transitions. [2023-12-22 02:37:58,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:37:58,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:58,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:58,694 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 (54)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:58,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /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 [2023-12-22 02:37:58,891 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:58,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:58,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1785074586, now seen corresponding path program 1 times [2023-12-22 02:37:58,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:58,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123741981] [2023-12-22 02:37:58,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:58,892 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 [2023-12-22 02:37:58,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:58,893 INFO L229 MonitoredProcess]: Starting monitored process 55 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) [2023-12-22 02:37:58,894 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 (55)] Waiting until timeout for monitored process [2023-12-22 02:37:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:59,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:37:59,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:59,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:37:59,146 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:59,146 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:59,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123741981] [2023-12-22 02:37:59,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1123741981] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:59,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:59,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:37:59,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638488967] [2023-12-22 02:37:59,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:59,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:37:59,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:59,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:37:59,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:37:59,147 INFO L87 Difference]: Start difference. First operand 11613 states and 13855 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-22 02:38:00,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:00,780 INFO L93 Difference]: Finished difference Result 21224 states and 25525 transitions. [2023-12-22 02:38:00,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:38:00,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 152 [2023-12-22 02:38:00,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:00,807 INFO L225 Difference]: With dead ends: 21224 [2023-12-22 02:38:00,807 INFO L226 Difference]: Without dead ends: 16371 [2023-12-22 02:38:00,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:00,814 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 415 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:00,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 922 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:38:00,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16371 states. [2023-12-22 02:38:02,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16371 to 16367. [2023-12-22 02:38:02,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16367 states, 14151 states have (on average 1.209879160483358) internal successors, (17121), 14340 states have internal predecessors, (17121), 1038 states have call successors, (1038), 891 states have call predecessors, (1038), 1176 states have return successors, (1358), 1137 states have call predecessors, (1358), 1035 states have call successors, (1358) [2023-12-22 02:38:02,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16367 states to 16367 states and 19517 transitions. [2023-12-22 02:38:02,458 INFO L78 Accepts]: Start accepts. Automaton has 16367 states and 19517 transitions. Word has length 152 [2023-12-22 02:38:02,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:02,458 INFO L495 AbstractCegarLoop]: Abstraction has 16367 states and 19517 transitions. [2023-12-22 02:38:02,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-22 02:38:02,459 INFO L276 IsEmpty]: Start isEmpty. Operand 16367 states and 19517 transitions. [2023-12-22 02:38:02,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 02:38:02,464 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:02,464 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:02,469 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 (55)] Forceful destruction successful, exit code 0 [2023-12-22 02:38:02,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /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 [2023-12-22 02:38:02,668 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:02,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:02,669 INFO L85 PathProgramCache]: Analyzing trace with hash 886518368, now seen corresponding path program 1 times [2023-12-22 02:38:02,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:02,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545916323] [2023-12-22 02:38:02,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:02,669 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 [2023-12-22 02:38:02,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:02,672 INFO L229 MonitoredProcess]: Starting monitored process 56 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) [2023-12-22 02:38:02,672 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 (56)] Waiting until timeout for monitored process [2023-12-22 02:38:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:02,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:38:02,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:02,826 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2023-12-22 02:38:02,826 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:02,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:02,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545916323] [2023-12-22 02:38:02,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1545916323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:02,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:02,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:38:02,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536717077] [2023-12-22 02:38:02,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:02,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:38:02,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:02,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:38:02,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:38:02,828 INFO L87 Difference]: Start difference. First operand 16367 states and 19517 transitions. Second operand has 6 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-22 02:38:03,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:03,995 INFO L93 Difference]: Finished difference Result 20199 states and 24186 transitions. [2023-12-22 02:38:03,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:38:03,996 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 217 [2023-12-22 02:38:03,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:04,012 INFO L225 Difference]: With dead ends: 20199 [2023-12-22 02:38:04,012 INFO L226 Difference]: Without dead ends: 13466 [2023-12-22 02:38:04,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-22 02:38:04,017 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 32 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:04,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 2654 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:38:04,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13466 states. [2023-12-22 02:38:04,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13466 to 12574. [2023-12-22 02:38:04,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12574 states, 11446 states have (on average 1.207408701729862) internal successors, (13820), 11511 states have internal predecessors, (13820), 543 states have call successors, (543), 452 states have call predecessors, (543), 583 states have return successors, (679), 611 states have call predecessors, (679), 540 states have call successors, (679) [2023-12-22 02:38:04,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12574 states to 12574 states and 15042 transitions. [2023-12-22 02:38:04,926 INFO L78 Accepts]: Start accepts. Automaton has 12574 states and 15042 transitions. Word has length 217 [2023-12-22 02:38:04,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:04,926 INFO L495 AbstractCegarLoop]: Abstraction has 12574 states and 15042 transitions. [2023-12-22 02:38:04,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-22 02:38:04,926 INFO L276 IsEmpty]: Start isEmpty. Operand 12574 states and 15042 transitions. [2023-12-22 02:38:04,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-12-22 02:38:04,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:04,931 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:04,938 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 (56)] Forceful destruction successful, exit code 0 [2023-12-22 02:38:05,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /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 [2023-12-22 02:38:05,136 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:05,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:05,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2050121831, now seen corresponding path program 1 times [2023-12-22 02:38:05,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:05,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935380410] [2023-12-22 02:38:05,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:05,137 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 [2023-12-22 02:38:05,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:05,138 INFO L229 MonitoredProcess]: Starting monitored process 57 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) [2023-12-22 02:38:05,146 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 (57)] Waiting until timeout for monitored process [2023-12-22 02:38:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:05,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:38:05,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:05,307 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-22 02:38:05,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:05,308 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:05,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935380410] [2023-12-22 02:38:05,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935380410] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:05,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:05,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:38:05,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926458708] [2023-12-22 02:38:05,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:05,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:38:05,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:05,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:38:05,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:05,310 INFO L87 Difference]: Start difference. First operand 12574 states and 15042 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-22 02:38:06,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:06,281 INFO L93 Difference]: Finished difference Result 15401 states and 18475 transitions. [2023-12-22 02:38:06,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:38:06,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 229 [2023-12-22 02:38:06,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:06,303 INFO L225 Difference]: With dead ends: 15401 [2023-12-22 02:38:06,303 INFO L226 Difference]: Without dead ends: 12540 [2023-12-22 02:38:06,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:06,308 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 65 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:06,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1072 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:38:06,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12540 states. [2023-12-22 02:38:07,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12540 to 12259. [2023-12-22 02:38:07,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12259 states, 11188 states have (on average 1.2019127636753664) internal successors, (13447), 11252 states have internal predecessors, (13447), 515 states have call successors, (515), 433 states have call predecessors, (515), 554 states have return successors, (641), 574 states have call predecessors, (641), 512 states have call successors, (641) [2023-12-22 02:38:07,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12259 states to 12259 states and 14603 transitions. [2023-12-22 02:38:07,436 INFO L78 Accepts]: Start accepts. Automaton has 12259 states and 14603 transitions. Word has length 229 [2023-12-22 02:38:07,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:07,437 INFO L495 AbstractCegarLoop]: Abstraction has 12259 states and 14603 transitions. [2023-12-22 02:38:07,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-22 02:38:07,437 INFO L276 IsEmpty]: Start isEmpty. Operand 12259 states and 14603 transitions. [2023-12-22 02:38:07,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-12-22 02:38:07,442 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:07,442 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:07,447 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 (57)] Forceful destruction successful, exit code 0 [2023-12-22 02:38:07,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /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 [2023-12-22 02:38:07,647 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:07,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:07,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1586039926, now seen corresponding path program 1 times [2023-12-22 02:38:07,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:07,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919590023] [2023-12-22 02:38:07,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:07,649 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 [2023-12-22 02:38:07,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:07,650 INFO L229 MonitoredProcess]: Starting monitored process 58 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) [2023-12-22 02:38:07,652 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 (58)] Waiting until timeout for monitored process [2023-12-22 02:38:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:07,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:38:07,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:07,854 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-22 02:38:07,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:07,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:07,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919590023] [2023-12-22 02:38:07,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919590023] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:07,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:07,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:38:07,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093064472] [2023-12-22 02:38:07,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:07,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:38:07,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:07,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:38:07,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:38:07,856 INFO L87 Difference]: Start difference. First operand 12259 states and 14603 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 3 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-22 02:38:09,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:09,099 INFO L93 Difference]: Finished difference Result 13605 states and 16170 transitions. [2023-12-22 02:38:09,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:38:09,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 3 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 230 [2023-12-22 02:38:09,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:09,118 INFO L225 Difference]: With dead ends: 13605 [2023-12-22 02:38:09,118 INFO L226 Difference]: Without dead ends: 11043 [2023-12-22 02:38:09,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:38:09,124 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 258 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:09,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 876 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:38:09,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11043 states. [2023-12-22 02:38:09,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11043 to 10847. [2023-12-22 02:38:09,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10847 states, 10074 states have (on average 1.201508834623784) internal successors, (12104), 10106 states have internal predecessors, (12104), 385 states have call successors, (385), 340 states have call predecessors, (385), 386 states have return successors, (454), 401 states have call predecessors, (454), 382 states have call successors, (454) [2023-12-22 02:38:09,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10847 states to 10847 states and 12943 transitions. [2023-12-22 02:38:09,993 INFO L78 Accepts]: Start accepts. Automaton has 10847 states and 12943 transitions. Word has length 230 [2023-12-22 02:38:09,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:09,993 INFO L495 AbstractCegarLoop]: Abstraction has 10847 states and 12943 transitions. [2023-12-22 02:38:09,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 3 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-22 02:38:09,993 INFO L276 IsEmpty]: Start isEmpty. Operand 10847 states and 12943 transitions. [2023-12-22 02:38:09,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-22 02:38:09,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:09,996 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:10,003 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 (58)] Forceful destruction successful, exit code 0 [2023-12-22 02:38:10,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /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 [2023-12-22 02:38:10,201 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:10,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:10,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1445445823, now seen corresponding path program 1 times [2023-12-22 02:38:10,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:10,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490858100] [2023-12-22 02:38:10,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:10,202 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 [2023-12-22 02:38:10,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:10,204 INFO L229 MonitoredProcess]: Starting monitored process 59 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) [2023-12-22 02:38:10,222 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 (59)] Waiting until timeout for monitored process [2023-12-22 02:38:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:10,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:38:10,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:10,424 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-12-22 02:38:10,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:10,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:10,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490858100] [2023-12-22 02:38:10,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490858100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:10,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:10,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:38:10,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077086883] [2023-12-22 02:38:10,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:10,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:38:10,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:10,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:38:10,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:10,426 INFO L87 Difference]: Start difference. First operand 10847 states and 12943 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-22 02:38:11,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:11,098 INFO L93 Difference]: Finished difference Result 11961 states and 14263 transitions. [2023-12-22 02:38:11,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:38:11,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 231 [2023-12-22 02:38:11,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:11,113 INFO L225 Difference]: With dead ends: 11961 [2023-12-22 02:38:11,113 INFO L226 Difference]: Without dead ends: 10829 [2023-12-22 02:38:11,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:11,115 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 28 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:11,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1057 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:38:11,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10829 states. [2023-12-22 02:38:11,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10829 to 10826. [2023-12-22 02:38:11,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10826 states, 10056 states have (on average 1.1997812251392204) internal successors, (12065), 10088 states have internal predecessors, (12065), 385 states have call successors, (385), 340 states have call predecessors, (385), 383 states have return successors, (451), 398 states have call predecessors, (451), 382 states have call successors, (451) [2023-12-22 02:38:11,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10826 states to 10826 states and 12901 transitions. [2023-12-22 02:38:11,741 INFO L78 Accepts]: Start accepts. Automaton has 10826 states and 12901 transitions. Word has length 231 [2023-12-22 02:38:11,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:11,741 INFO L495 AbstractCegarLoop]: Abstraction has 10826 states and 12901 transitions. [2023-12-22 02:38:11,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-22 02:38:11,741 INFO L276 IsEmpty]: Start isEmpty. Operand 10826 states and 12901 transitions. [2023-12-22 02:38:11,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-22 02:38:11,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:11,744 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:11,751 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 (59)] Forceful destruction successful, exit code 0 [2023-12-22 02:38:11,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /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 [2023-12-22 02:38:11,949 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:11,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:11,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1881301683, now seen corresponding path program 1 times [2023-12-22 02:38:11,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:11,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579038985] [2023-12-22 02:38:11,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:11,950 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 [2023-12-22 02:38:11,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:11,951 INFO L229 MonitoredProcess]: Starting monitored process 60 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) [2023-12-22 02:38:11,952 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 (60)] Waiting until timeout for monitored process [2023-12-22 02:38:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:12,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:38:12,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:12,116 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-12-22 02:38:12,116 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:12,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:12,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579038985] [2023-12-22 02:38:12,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579038985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:12,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:12,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:38:12,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635195481] [2023-12-22 02:38:12,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:12,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:38:12,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:12,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:38:12,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:38:12,118 INFO L87 Difference]: Start difference. First operand 10826 states and 12901 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 3 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-22 02:38:13,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:13,219 INFO L93 Difference]: Finished difference Result 11173 states and 13284 transitions. [2023-12-22 02:38:13,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:38:13,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 3 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 233 [2023-12-22 02:38:13,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:13,235 INFO L225 Difference]: With dead ends: 11173 [2023-12-22 02:38:13,235 INFO L226 Difference]: Without dead ends: 9626 [2023-12-22 02:38:13,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:38:13,240 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 240 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:13,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 1106 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:38:13,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9626 states. [2023-12-22 02:38:13,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9626 to 9626. [2023-12-22 02:38:13,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9626 states, 9147 states have (on average 1.2072810757625452) internal successors, (11043), 9157 states have internal predecessors, (11043), 250 states have call successors, (250), 225 states have call predecessors, (250), 228 states have return successors, (252), 244 states have call predecessors, (252), 248 states have call successors, (252) [2023-12-22 02:38:13,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9626 states to 9626 states and 11545 transitions. [2023-12-22 02:38:13,684 INFO L78 Accepts]: Start accepts. Automaton has 9626 states and 11545 transitions. Word has length 233 [2023-12-22 02:38:13,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:13,684 INFO L495 AbstractCegarLoop]: Abstraction has 9626 states and 11545 transitions. [2023-12-22 02:38:13,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 3 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-22 02:38:13,685 INFO L276 IsEmpty]: Start isEmpty. Operand 9626 states and 11545 transitions. [2023-12-22 02:38:13,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-22 02:38:13,689 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:13,689 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:13,694 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 (60)] Ended with exit code 0 [2023-12-22 02:38:13,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /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 [2023-12-22 02:38:13,894 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:13,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:13,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1195734451, now seen corresponding path program 1 times [2023-12-22 02:38:13,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:13,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126350752] [2023-12-22 02:38:13,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:13,895 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 [2023-12-22 02:38:13,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:13,897 INFO L229 MonitoredProcess]: Starting monitored process 61 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) [2023-12-22 02:38:13,897 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 (61)] Waiting until timeout for monitored process [2023-12-22 02:38:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:14,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:38:14,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:14,213 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-22 02:38:14,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:14,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:14,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126350752] [2023-12-22 02:38:14,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126350752] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:14,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:14,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:38:14,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561558130] [2023-12-22 02:38:14,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:14,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:38:14,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:14,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:38:14,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:14,215 INFO L87 Difference]: Start difference. First operand 9626 states and 11545 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 2 states have internal predecessors, (221), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:38:15,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:15,005 INFO L93 Difference]: Finished difference Result 28075 states and 33850 transitions. [2023-12-22 02:38:15,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:38:15,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 2 states have internal predecessors, (221), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 244 [2023-12-22 02:38:15,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:15,041 INFO L225 Difference]: With dead ends: 28075 [2023-12-22 02:38:15,041 INFO L226 Difference]: Without dead ends: 18468 [2023-12-22 02:38:15,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:15,059 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 302 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:15,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 863 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:38:15,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18468 states. [2023-12-22 02:38:15,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18468 to 18456. [2023-12-22 02:38:15,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18456 states, 17537 states have (on average 1.2022010606147004) internal successors, (21083), 17555 states have internal predecessors, (21083), 478 states have call successors, (478), 433 states have call predecessors, (478), 440 states have return successors, (484), 468 states have call predecessors, (484), 476 states have call successors, (484) [2023-12-22 02:38:15,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18456 states to 18456 states and 22045 transitions. [2023-12-22 02:38:15,883 INFO L78 Accepts]: Start accepts. Automaton has 18456 states and 22045 transitions. Word has length 244 [2023-12-22 02:38:15,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:15,884 INFO L495 AbstractCegarLoop]: Abstraction has 18456 states and 22045 transitions. [2023-12-22 02:38:15,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 2 states have internal predecessors, (221), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:38:15,884 INFO L276 IsEmpty]: Start isEmpty. Operand 18456 states and 22045 transitions. [2023-12-22 02:38:15,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-22 02:38:15,889 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:15,889 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:15,895 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 (61)] Ended with exit code 0 [2023-12-22 02:38:16,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /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 [2023-12-22 02:38:16,095 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:16,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:16,096 INFO L85 PathProgramCache]: Analyzing trace with hash -265138292, now seen corresponding path program 1 times [2023-12-22 02:38:16,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:16,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759021446] [2023-12-22 02:38:16,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:16,096 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 [2023-12-22 02:38:16,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:16,097 INFO L229 MonitoredProcess]: Starting monitored process 62 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) [2023-12-22 02:38:16,138 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 (62)] Waiting until timeout for monitored process [2023-12-22 02:38:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:16,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:38:16,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:16,482 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-22 02:38:16,482 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:16,482 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:16,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759021446] [2023-12-22 02:38:16,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759021446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:16,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:16,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:38:16,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289199779] [2023-12-22 02:38:16,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:16,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:38:16,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:16,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:38:16,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:38:16,483 INFO L87 Difference]: Start difference. First operand 18456 states and 22045 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:38:17,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:17,946 INFO L93 Difference]: Finished difference Result 46166 states and 55095 transitions. [2023-12-22 02:38:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:38:17,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 244 [2023-12-22 02:38:17,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:18,000 INFO L225 Difference]: With dead ends: 46166 [2023-12-22 02:38:18,001 INFO L226 Difference]: Without dead ends: 27730 [2023-12-22 02:38:18,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:38:18,029 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 630 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:18,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 954 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:38:18,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27730 states. [2023-12-22 02:38:19,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27730 to 27726. [2023-12-22 02:38:19,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27726 states, 26351 states have (on average 1.1968805737922659) internal successors, (31539), 26385 states have internal predecessors, (31539), 706 states have call successors, (706), 641 states have call predecessors, (706), 668 states have return successors, (756), 700 states have call predecessors, (756), 704 states have call successors, (756) [2023-12-22 02:38:19,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27726 states to 27726 states and 33001 transitions. [2023-12-22 02:38:19,324 INFO L78 Accepts]: Start accepts. Automaton has 27726 states and 33001 transitions. Word has length 244 [2023-12-22 02:38:19,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:19,325 INFO L495 AbstractCegarLoop]: Abstraction has 27726 states and 33001 transitions. [2023-12-22 02:38:19,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:38:19,325 INFO L276 IsEmpty]: Start isEmpty. Operand 27726 states and 33001 transitions. [2023-12-22 02:38:19,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-22 02:38:19,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:19,334 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:19,342 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 (62)] Forceful destruction successful, exit code 0 [2023-12-22 02:38:19,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /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 [2023-12-22 02:38:19,540 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:19,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:19,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1028420239, now seen corresponding path program 1 times [2023-12-22 02:38:19,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:19,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496509491] [2023-12-22 02:38:19,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:19,541 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 [2023-12-22 02:38:19,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:19,565 INFO L229 MonitoredProcess]: Starting monitored process 63 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) [2023-12-22 02:38:19,566 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 (63)] Waiting until timeout for monitored process [2023-12-22 02:38:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:19,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:38:19,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:19,963 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-22 02:38:19,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:19,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:19,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496509491] [2023-12-22 02:38:19,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496509491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:19,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:19,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:38:19,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182389698] [2023-12-22 02:38:19,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:19,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:38:19,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:19,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:38:19,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:38:19,965 INFO L87 Difference]: Start difference. First operand 27726 states and 33001 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:38:22,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:22,562 INFO L93 Difference]: Finished difference Result 81507 states and 96967 transitions. [2023-12-22 02:38:22,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:38:22,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 246 [2023-12-22 02:38:22,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:22,688 INFO L225 Difference]: With dead ends: 81507 [2023-12-22 02:38:22,688 INFO L226 Difference]: Without dead ends: 53801 [2023-12-22 02:38:22,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:38:22,723 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 597 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:22,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 1232 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:38:22,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53801 states. [2023-12-22 02:38:25,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53801 to 53797. [2023-12-22 02:38:25,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53797 states, 51131 states have (on average 1.1945199585378734) internal successors, (61077), 51206 states have internal predecessors, (61077), 1361 states have call successors, (1361), 1233 states have call predecessors, (1361), 1304 states have return successors, (1503), 1359 states have call predecessors, (1503), 1359 states have call successors, (1503) [2023-12-22 02:38:25,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53797 states to 53797 states and 63941 transitions. [2023-12-22 02:38:25,788 INFO L78 Accepts]: Start accepts. Automaton has 53797 states and 63941 transitions. Word has length 246 [2023-12-22 02:38:25,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:25,789 INFO L495 AbstractCegarLoop]: Abstraction has 53797 states and 63941 transitions. [2023-12-22 02:38:25,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:38:25,789 INFO L276 IsEmpty]: Start isEmpty. Operand 53797 states and 63941 transitions. [2023-12-22 02:38:25,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-22 02:38:25,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:25,806 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:25,812 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 (63)] Forceful destruction successful, exit code 0 [2023-12-22 02:38:26,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /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 [2023-12-22 02:38:26,012 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:26,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:26,013 INFO L85 PathProgramCache]: Analyzing trace with hash 506976431, now seen corresponding path program 1 times [2023-12-22 02:38:26,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:26,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998172298] [2023-12-22 02:38:26,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:26,014 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 [2023-12-22 02:38:26,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:26,016 INFO L229 MonitoredProcess]: Starting monitored process 64 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) [2023-12-22 02:38:26,017 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 (64)] Waiting until timeout for monitored process [2023-12-22 02:38:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:26,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:38:26,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:26,257 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-22 02:38:26,257 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:26,257 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:26,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [998172298] [2023-12-22 02:38:26,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [998172298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:26,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:26,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:38:26,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69512129] [2023-12-22 02:38:26,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:26,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:38:26,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:26,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:38:26,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:26,258 INFO L87 Difference]: Start difference. First operand 53797 states and 63941 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:38:28,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:28,931 INFO L93 Difference]: Finished difference Result 107561 states and 127824 transitions. [2023-12-22 02:38:28,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:38:28,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 246 [2023-12-22 02:38:28,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:29,045 INFO L225 Difference]: With dead ends: 107561 [2023-12-22 02:38:29,045 INFO L226 Difference]: Without dead ends: 53784 [2023-12-22 02:38:29,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:29,163 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 458 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:29,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 424 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:38:29,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53784 states. [2023-12-22 02:38:32,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53784 to 53784. [2023-12-22 02:38:32,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53784 states, 51121 states have (on average 1.1943819565344966) internal successors, (61058), 51195 states have internal predecessors, (61058), 1358 states have call successors, (1358), 1233 states have call predecessors, (1358), 1304 states have return successors, (1500), 1356 states have call predecessors, (1500), 1356 states have call successors, (1500) [2023-12-22 02:38:32,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53784 states to 53784 states and 63916 transitions. [2023-12-22 02:38:32,634 INFO L78 Accepts]: Start accepts. Automaton has 53784 states and 63916 transitions. Word has length 246 [2023-12-22 02:38:32,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:32,634 INFO L495 AbstractCegarLoop]: Abstraction has 53784 states and 63916 transitions. [2023-12-22 02:38:32,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:38:32,635 INFO L276 IsEmpty]: Start isEmpty. Operand 53784 states and 63916 transitions. [2023-12-22 02:38:32,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-22 02:38:32,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:32,671 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:32,679 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 (64)] Forceful destruction successful, exit code 0 [2023-12-22 02:38:32,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /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 [2023-12-22 02:38:32,877 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:32,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:32,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1213513332, now seen corresponding path program 1 times [2023-12-22 02:38:32,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:32,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724300017] [2023-12-22 02:38:32,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:32,878 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 [2023-12-22 02:38:32,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:32,879 INFO L229 MonitoredProcess]: Starting monitored process 65 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) [2023-12-22 02:38:32,911 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 (65)] Waiting until timeout for monitored process [2023-12-22 02:38:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:33,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:38:33,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:33,295 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-22 02:38:33,296 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:33,296 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:33,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1724300017] [2023-12-22 02:38:33,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1724300017] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:33,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:33,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:38:33,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608582796] [2023-12-22 02:38:33,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:33,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:38:33,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:33,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:38:33,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:38:33,297 INFO L87 Difference]: Start difference. First operand 53784 states and 63916 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:38:38,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:38,517 INFO L93 Difference]: Finished difference Result 158432 states and 188200 transitions. [2023-12-22 02:38:38,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:38:38,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 248 [2023-12-22 02:38:38,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:38,742 INFO L225 Difference]: With dead ends: 158432 [2023-12-22 02:38:38,743 INFO L226 Difference]: Without dead ends: 104668 [2023-12-22 02:38:38,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:38:38,786 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 594 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:38,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 1194 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:38:38,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104668 states. [2023-12-22 02:38:43,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104668 to 104664. [2023-12-22 02:38:44,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104664 states, 99486 states have (on average 1.192549705486199) internal successors, (118642), 99657 states have internal predecessors, (118642), 2617 states have call successors, (2617), 2369 states have call predecessors, (2617), 2560 states have return successors, (2975), 2639 states have call predecessors, (2975), 2615 states have call successors, (2975) [2023-12-22 02:38:44,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104664 states to 104664 states and 124234 transitions. [2023-12-22 02:38:44,266 INFO L78 Accepts]: Start accepts. Automaton has 104664 states and 124234 transitions. Word has length 248 [2023-12-22 02:38:44,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:44,267 INFO L495 AbstractCegarLoop]: Abstraction has 104664 states and 124234 transitions. [2023-12-22 02:38:44,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:38:44,267 INFO L276 IsEmpty]: Start isEmpty. Operand 104664 states and 124234 transitions. [2023-12-22 02:38:44,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-22 02:38:44,301 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:44,301 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:44,310 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 (65)] Forceful destruction successful, exit code 0 [2023-12-22 02:38:44,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /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 [2023-12-22 02:38:44,510 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:44,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:44,511 INFO L85 PathProgramCache]: Analyzing trace with hash -860856818, now seen corresponding path program 1 times [2023-12-22 02:38:44,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:44,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952765542] [2023-12-22 02:38:44,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:44,511 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 [2023-12-22 02:38:44,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:44,513 INFO L229 MonitoredProcess]: Starting monitored process 66 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) [2023-12-22 02:38:44,514 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 (66)] Waiting until timeout for monitored process [2023-12-22 02:38:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:44,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:38:44,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:44,693 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-22 02:38:44,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:44,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:44,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952765542] [2023-12-22 02:38:44,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952765542] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:44,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:44,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:38:44,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641425216] [2023-12-22 02:38:44,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:44,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:38:44,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:44,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:38:44,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:44,695 INFO L87 Difference]: Start difference. First operand 104664 states and 124234 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:38:49,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:49,615 INFO L93 Difference]: Finished difference Result 209296 states and 248413 transitions. [2023-12-22 02:38:49,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:38:49,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 248 [2023-12-22 02:38:49,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:49,822 INFO L225 Difference]: With dead ends: 209296 [2023-12-22 02:38:49,822 INFO L226 Difference]: Without dead ends: 104652 [2023-12-22 02:38:49,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:49,899 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 456 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:49,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 423 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:38:49,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104652 states. [2023-12-22 02:38:55,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104652 to 104652. [2023-12-22 02:38:55,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104652 states, 99477 states have (on average 1.192486705469606) internal successors, (118625), 99647 states have internal predecessors, (118625), 2614 states have call successors, (2614), 2369 states have call predecessors, (2614), 2560 states have return successors, (2972), 2636 states have call predecessors, (2972), 2612 states have call successors, (2972) [2023-12-22 02:38:55,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104652 states to 104652 states and 124211 transitions. [2023-12-22 02:38:55,502 INFO L78 Accepts]: Start accepts. Automaton has 104652 states and 124211 transitions. Word has length 248 [2023-12-22 02:38:55,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:55,502 INFO L495 AbstractCegarLoop]: Abstraction has 104652 states and 124211 transitions. [2023-12-22 02:38:55,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:38:55,503 INFO L276 IsEmpty]: Start isEmpty. Operand 104652 states and 124211 transitions. [2023-12-22 02:38:55,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-12-22 02:38:55,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:55,537 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:55,544 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 (66)] Ended with exit code 0 [2023-12-22 02:38:55,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /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 [2023-12-22 02:38:55,744 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:55,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:55,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1264826545, now seen corresponding path program 1 times [2023-12-22 02:38:55,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:55,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289489754] [2023-12-22 02:38:55,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:55,893 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 [2023-12-22 02:38:55,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:55,898 INFO L229 MonitoredProcess]: Starting monitored process 67 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) [2023-12-22 02:38:55,928 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 (67)] Waiting until timeout for monitored process [2023-12-22 02:38:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:56,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:38:56,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:56,304 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-22 02:38:56,304 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:56,304 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:56,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289489754] [2023-12-22 02:38:56,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289489754] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:56,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:56,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:38:56,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597218076] [2023-12-22 02:38:56,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:56,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:38:56,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:56,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:38:56,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:38:56,306 INFO L87 Difference]: Start difference. First operand 104652 states and 124211 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:39:05,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:05,591 INFO L93 Difference]: Finished difference Result 308119 states and 365629 transitions. [2023-12-22 02:39:05,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:39:05,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 250 [2023-12-22 02:39:05,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:06,200 INFO L225 Difference]: With dead ends: 308119 [2023-12-22 02:39:06,200 INFO L226 Difference]: Without dead ends: 203487 [2023-12-22 02:39:06,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:06,303 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 589 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:06,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 1163 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:39:06,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203487 states.