/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.13.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 02:36:41,366 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 02:36:41,421 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 02:36:41,435 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 02:36:41,436 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 02:36:41,466 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 02:36:41,467 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 02:36:41,467 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 02:36:41,468 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 02:36:41,471 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 02:36:41,471 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 02:36:41,472 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 02:36:41,472 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 02:36:41,474 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 02:36:41,474 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 02:36:41,474 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 02:36:41,474 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 02:36:41,475 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 02:36:41,475 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 02:36:41,475 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 02:36:41,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 02:36:41,475 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 02:36:41,476 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 02:36:41,476 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 02:36:41,476 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 02:36:41,476 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 02:36:41,476 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 02:36:41,476 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 02:36:41,476 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 02:36:41,477 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 02:36:41,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 02:36:41,478 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 02:36:41,478 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 02:36:41,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 02:36:41,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:36:41,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 02:36:41,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 02:36:41,478 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 02:36:41,478 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 02:36:41,479 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 02:36:41,479 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 02:36:41,479 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 02:36:41,479 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 02:36:41,479 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 02:36:41,480 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 02:36:41,480 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 02:36:41,480 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 02:36:41,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 02:36:41,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 02:36:41,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 02:36:41,716 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 02:36:41,716 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 02:36:41,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-1.c [2023-12-22 02:36:42,838 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 02:36:43,025 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 02:36:43,026 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-1.c [2023-12-22 02:36:43,048 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fad0e300/510cbfb402594df897e4666981dc0d09/FLAG84cac5dff [2023-12-22 02:36:43,060 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fad0e300/510cbfb402594df897e4666981dc0d09 [2023-12-22 02:36:43,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 02:36:43,063 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 02:36:43,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 02:36:43,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 02:36:43,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 02:36:43,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:36:43" (1/1) ... [2023-12-22 02:36:43,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3acebf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:43, skipping insertion in model container [2023-12-22 02:36:43,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:36:43" (1/1) ... [2023-12-22 02:36:43,111 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 02:36:43,216 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.13.cil-1.c[914,927] [2023-12-22 02:36:43,272 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.13.cil-1.c[7115,7128] [2023-12-22 02:36:43,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:36:43,404 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 02:36:43,414 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.13.cil-1.c[914,927] [2023-12-22 02:36:43,440 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.13.cil-1.c[7115,7128] [2023-12-22 02:36:43,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:36:43,507 INFO L206 MainTranslator]: Completed translation [2023-12-22 02:36:43,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:43 WrapperNode [2023-12-22 02:36:43,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 02:36:43,508 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 02:36:43,508 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 02:36:43,508 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 02:36:43,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:43" (1/1) ... [2023-12-22 02:36:43,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:43" (1/1) ... [2023-12-22 02:36:43,603 INFO L138 Inliner]: procedures = 80, calls = 97, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 1092 [2023-12-22 02:36:43,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 02:36:43,605 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 02:36:43,605 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 02:36:43,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 02:36:43,616 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:43" (1/1) ... [2023-12-22 02:36:43,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:43" (1/1) ... [2023-12-22 02:36:43,625 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:43" (1/1) ... [2023-12-22 02:36:43,645 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 02:36:43,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:43" (1/1) ... [2023-12-22 02:36:43,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:43" (1/1) ... [2023-12-22 02:36:43,664 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:43" (1/1) ... [2023-12-22 02:36:43,680 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:43" (1/1) ... [2023-12-22 02:36:43,685 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:43" (1/1) ... [2023-12-22 02:36:43,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:43" (1/1) ... [2023-12-22 02:36:43,696 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 02:36:43,697 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 02:36:43,697 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 02:36:43,697 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 02:36:43,698 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:43" (1/1) ... [2023-12-22 02:36:43,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:36:43,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 02:36:43,738 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 02:36:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 02:36:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-22 02:36:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-22 02:36:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-22 02:36:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-22 02:36:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-22 02:36:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-22 02:36:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-22 02:36:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-22 02:36:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-22 02:36:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-22 02:36:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-22 02:36:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-22 02:36:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-22 02:36:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-22 02:36:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-22 02:36:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-22 02:36:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 02:36:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-22 02:36:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-22 02:36:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-22 02:36:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-22 02:36:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-22 02:36:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-22 02:36:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-22 02:36:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-22 02:36:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-22 02:36:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-22 02:36:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 02:36:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 02:36:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-22 02:36:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-22 02:36:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2023-12-22 02:36:43,765 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2023-12-22 02:36:43,756 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 02:36:43,916 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 02:36:43,919 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 02:36:44,728 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 02:36:44,775 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 02:36:44,775 INFO L309 CfgBuilder]: Removed 20 assume(true) statements. [2023-12-22 02:36:44,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:36:44 BoogieIcfgContainer [2023-12-22 02:36:44,776 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 02:36:44,778 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 02:36:44,778 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 02:36:44,780 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 02:36:44,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:36:43" (1/3) ... [2023-12-22 02:36:44,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e9af4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:36:44, skipping insertion in model container [2023-12-22 02:36:44,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:43" (2/3) ... [2023-12-22 02:36:44,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e9af4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:36:44, skipping insertion in model container [2023-12-22 02:36:44,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:36:44" (3/3) ... [2023-12-22 02:36:44,782 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.13.cil-1.c [2023-12-22 02:36:44,794 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 02:36:44,794 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 02:36:44,846 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 02:36:44,851 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;@60b8f347, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 02:36:44,851 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 02:36:44,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 470 states, 409 states have (on average 1.7212713936430317) internal successors, (704), 417 states have internal predecessors, (704), 43 states have call successors, (43), 15 states have call predecessors, (43), 15 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-22 02:36:44,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:36:44,872 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:44,873 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 02:36:44,873 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:44,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:44,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1646457945, now seen corresponding path program 1 times [2023-12-22 02:36:44,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:44,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112883148] [2023-12-22 02:36:44,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:44,888 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 02:36:44,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:44,899 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 02:36:44,938 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 02:36:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:45,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 02:36:45,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:45,108 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 02:36:45,109 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:45,109 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:45,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112883148] [2023-12-22 02:36:45,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112883148] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:45,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:45,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:36:45,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401124561] [2023-12-22 02:36:45,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:45,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:45,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:45,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:45,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:45,137 INFO L87 Difference]: Start difference. First operand has 470 states, 409 states have (on average 1.7212713936430317) internal successors, (704), 417 states have internal predecessors, (704), 43 states have call successors, (43), 15 states have call predecessors, (43), 15 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) 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 02:36:46,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:46,149 INFO L93 Difference]: Finished difference Result 1008 states and 1685 transitions. [2023-12-22 02:36:46,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:36:46,152 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 02:36:46,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:46,163 INFO L225 Difference]: With dead ends: 1008 [2023-12-22 02:36:46,163 INFO L226 Difference]: Without dead ends: 559 [2023-12-22 02:36:46,168 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 02:36:46,170 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 469 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:46,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 1390 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 02:36:46,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-12-22 02:36:46,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 552. [2023-12-22 02:36:46,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 474 states have (on average 1.590717299578059) internal successors, (754), 481 states have internal predecessors, (754), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (55), 51 states have call predecessors, (55), 50 states have call successors, (55) [2023-12-22 02:36:46,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 863 transitions. [2023-12-22 02:36:46,239 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 863 transitions. Word has length 58 [2023-12-22 02:36:46,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:46,239 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 863 transitions. [2023-12-22 02:36:46,239 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 02:36:46,240 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 863 transitions. [2023-12-22 02:36:46,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:36:46,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:46,242 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 02:36:46,250 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 02:36:46,447 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 02:36:46,448 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:46,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:46,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1512224281, now seen corresponding path program 1 times [2023-12-22 02:36:46,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:46,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566918701] [2023-12-22 02:36:46,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:46,449 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 02:36:46,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:46,450 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 02:36:46,452 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 02:36:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:46,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:36:46,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:46,634 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 02:36:46,634 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:46,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:46,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566918701] [2023-12-22 02:36:46,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566918701] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:46,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:46,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:36:46,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665034177] [2023-12-22 02:36:46,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:46,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:36:46,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:46,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:36:46,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:46,637 INFO L87 Difference]: Start difference. First operand 552 states and 863 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 02:36:46,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:46,869 INFO L93 Difference]: Finished difference Result 723 states and 1103 transitions. [2023-12-22 02:36:46,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:36:46,870 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 02:36:46,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:46,876 INFO L225 Difference]: With dead ends: 723 [2023-12-22 02:36:46,876 INFO L226 Difference]: Without dead ends: 561 [2023-12-22 02:36:46,877 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 02:36:46,882 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 6 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:46,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3410 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:36:46,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-22 02:36:46,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 556. [2023-12-22 02:36:46,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 477 states have (on average 1.5849056603773586) internal successors, (756), 484 states have internal predecessors, (756), 54 states have call successors, (54), 22 states have call predecessors, (54), 23 states have return successors, (56), 52 states have call predecessors, (56), 50 states have call successors, (56) [2023-12-22 02:36:46,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 866 transitions. [2023-12-22 02:36:46,932 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 866 transitions. Word has length 58 [2023-12-22 02:36:46,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:46,932 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 866 transitions. [2023-12-22 02:36:46,932 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 02:36:46,932 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 866 transitions. [2023-12-22 02:36:46,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:36:46,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:46,934 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 02:36:46,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:47,138 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 02:36:47,138 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:47,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:47,139 INFO L85 PathProgramCache]: Analyzing trace with hash -731759017, now seen corresponding path program 1 times [2023-12-22 02:36:47,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:47,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340970215] [2023-12-22 02:36:47,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:47,140 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 02:36:47,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:47,151 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 02:36:47,152 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 02:36:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:47,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:36:47,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:47,339 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 02:36:47,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:47,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:47,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340970215] [2023-12-22 02:36:47,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340970215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:47,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:47,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:36:47,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714114012] [2023-12-22 02:36:47,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:47,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:36:47,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:47,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:36:47,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:47,341 INFO L87 Difference]: Start difference. First operand 556 states and 866 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 02:36:47,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:47,426 INFO L93 Difference]: Finished difference Result 880 states and 1309 transitions. [2023-12-22 02:36:47,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:36:47,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 58 [2023-12-22 02:36:47,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:47,429 INFO L225 Difference]: With dead ends: 880 [2023-12-22 02:36:47,429 INFO L226 Difference]: Without dead ends: 714 [2023-12-22 02:36:47,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 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 02:36:47,431 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 681 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:47,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 789 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:36:47,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2023-12-22 02:36:47,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 700. [2023-12-22 02:36:47,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 588 states have (on average 1.5442176870748299) internal successors, (908), 597 states have internal predecessors, (908), 70 states have call successors, (70), 36 states have call predecessors, (70), 40 states have return successors, (76), 69 states have call predecessors, (76), 66 states have call successors, (76) [2023-12-22 02:36:47,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1054 transitions. [2023-12-22 02:36:47,455 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1054 transitions. Word has length 58 [2023-12-22 02:36:47,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:47,455 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 1054 transitions. [2023-12-22 02:36:47,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 02:36:47,455 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1054 transitions. [2023-12-22 02:36:47,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-22 02:36:47,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:47,456 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 02:36:47,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:47,668 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 02:36:47,669 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:47,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:47,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1118498206, now seen corresponding path program 1 times [2023-12-22 02:36:47,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:47,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575293692] [2023-12-22 02:36:47,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:47,670 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 02:36:47,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:47,672 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 02:36:47,678 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 02:36:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:47,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:36:47,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:47,794 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 02:36:47,794 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:47,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:47,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575293692] [2023-12-22 02:36:47,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575293692] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:47,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:47,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:36:47,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124292146] [2023-12-22 02:36:47,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:47,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:36:47,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:47,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:36:47,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:47,796 INFO L87 Difference]: Start difference. First operand 700 states and 1054 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 02:36:48,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:48,043 INFO L93 Difference]: Finished difference Result 1022 states and 1488 transitions. [2023-12-22 02:36:48,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:36:48,044 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 59 [2023-12-22 02:36:48,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:48,049 INFO L225 Difference]: With dead ends: 1022 [2023-12-22 02:36:48,049 INFO L226 Difference]: Without dead ends: 712 [2023-12-22 02:36:48,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 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 02:36:48,054 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 3 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:48,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3410 Invalid, 289 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:36:48,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2023-12-22 02:36:48,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 708. [2023-12-22 02:36:48,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 594 states have (on average 1.5353535353535352) internal successors, (912), 603 states have internal predecessors, (912), 70 states have call successors, (70), 36 states have call predecessors, (70), 42 states have return successors, (78), 71 states have call predecessors, (78), 66 states have call successors, (78) [2023-12-22 02:36:48,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1060 transitions. [2023-12-22 02:36:48,094 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1060 transitions. Word has length 59 [2023-12-22 02:36:48,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:48,095 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 1060 transitions. [2023-12-22 02:36:48,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 02:36:48,095 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1060 transitions. [2023-12-22 02:36:48,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-22 02:36:48,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:48,097 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 02:36:48,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-22 02:36:48,301 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 02:36:48,301 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:48,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:48,301 INFO L85 PathProgramCache]: Analyzing trace with hash 804729828, now seen corresponding path program 1 times [2023-12-22 02:36:48,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:48,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [688653031] [2023-12-22 02:36:48,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:48,303 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 02:36:48,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:48,304 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 02:36:48,306 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 02:36:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:48,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:48,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:48,460 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 02:36:48,460 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:48,460 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:48,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [688653031] [2023-12-22 02:36:48,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [688653031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:48,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:48,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:48,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205678941] [2023-12-22 02:36:48,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:48,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:36:48,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:48,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:36:48,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:36:48,462 INFO L87 Difference]: Start difference. First operand 708 states and 1060 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 02:36:49,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:49,121 INFO L93 Difference]: Finished difference Result 1330 states and 1890 transitions. [2023-12-22 02:36:49,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:36:49,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 59 [2023-12-22 02:36:49,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:49,126 INFO L225 Difference]: With dead ends: 1330 [2023-12-22 02:36:49,126 INFO L226 Difference]: Without dead ends: 1014 [2023-12-22 02:36:49,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 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 02:36:49,127 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 1019 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:49,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 709 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:36:49,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2023-12-22 02:36:49,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 1010. [2023-12-22 02:36:49,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 818 states have (on average 1.4731051344743276) internal successors, (1205), 834 states have internal predecessors, (1205), 110 states have call successors, (110), 64 states have call predecessors, (110), 80 states have return successors, (141), 116 states have call predecessors, (141), 106 states have call successors, (141) [2023-12-22 02:36:49,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1456 transitions. [2023-12-22 02:36:49,167 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1456 transitions. Word has length 59 [2023-12-22 02:36:49,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:49,167 INFO L495 AbstractCegarLoop]: Abstraction has 1010 states and 1456 transitions. [2023-12-22 02:36:49,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 02:36:49,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1456 transitions. [2023-12-22 02:36:49,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-22 02:36:49,168 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:49,168 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 02:36:49,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:49,372 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 02:36:49,373 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:49,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:49,374 INFO L85 PathProgramCache]: Analyzing trace with hash -140761581, now seen corresponding path program 1 times [2023-12-22 02:36:49,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:49,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894230350] [2023-12-22 02:36:49,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:49,374 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 02:36:49,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:49,382 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 02:36:49,383 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 02:36:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:49,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:36:49,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:49,587 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 02:36:49,587 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:49,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:49,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894230350] [2023-12-22 02:36:49,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894230350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:49,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:49,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:36:49,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190670196] [2023-12-22 02:36:49,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:49,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:36:49,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:49,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:36:49,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:49,590 INFO L87 Difference]: Start difference. First operand 1010 states and 1456 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 02:36:49,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:49,750 INFO L93 Difference]: Finished difference Result 2210 states and 3058 transitions. [2023-12-22 02:36:49,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:36:49,750 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 02:36:49,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:49,756 INFO L225 Difference]: With dead ends: 2210 [2023-12-22 02:36:49,756 INFO L226 Difference]: Without dead ends: 1578 [2023-12-22 02:36:49,758 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 02:36:49,760 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 63 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:49,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1333 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:36:49,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2023-12-22 02:36:49,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1562. [2023-12-22 02:36:49,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1234 states have (on average 1.4181523500810373) internal successors, (1750), 1255 states have internal predecessors, (1750), 176 states have call successors, (176), 120 states have call predecessors, (176), 150 states have return successors, (238), 191 states have call predecessors, (238), 172 states have call successors, (238) [2023-12-22 02:36:49,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2164 transitions. [2023-12-22 02:36:49,858 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2164 transitions. Word has length 60 [2023-12-22 02:36:49,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:49,859 INFO L495 AbstractCegarLoop]: Abstraction has 1562 states and 2164 transitions. [2023-12-22 02:36:49,859 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 02:36:49,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2164 transitions. [2023-12-22 02:36:49,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 02:36:49,860 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:49,861 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 02:36:49,880 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 (7)] Ended with exit code 0 [2023-12-22 02:36:50,064 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 02:36:50,065 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:50,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:50,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1929223218, now seen corresponding path program 1 times [2023-12-22 02:36:50,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:50,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054788321] [2023-12-22 02:36:50,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:50,066 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 02:36:50,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:50,075 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 02:36:50,077 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 02:36:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:50,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:36:50,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:50,218 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 02:36:50,219 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:50,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:50,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054788321] [2023-12-22 02:36:50,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2054788321] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:50,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:50,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:36:50,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499042968] [2023-12-22 02:36:50,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:50,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:36:50,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:50,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:36:50,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:50,221 INFO L87 Difference]: Start difference. First operand 1562 states and 2164 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 02:36:50,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:50,361 INFO L93 Difference]: Finished difference Result 3282 states and 4402 transitions. [2023-12-22 02:36:50,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:36:50,362 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 02:36:50,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:50,369 INFO L225 Difference]: With dead ends: 3282 [2023-12-22 02:36:50,370 INFO L226 Difference]: Without dead ends: 2118 [2023-12-22 02:36:50,372 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 02:36:50,372 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 676 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:50,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 789 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:36:50,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2023-12-22 02:36:50,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 2094. [2023-12-22 02:36:50,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2094 states, 1634 states have (on average 1.3843329253365972) internal successors, (2262), 1663 states have internal predecessors, (2262), 240 states have call successors, (240), 176 states have call predecessors, (240), 218 states have return successors, (325), 259 states have call predecessors, (325), 236 states have call successors, (325) [2023-12-22 02:36:50,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2094 states to 2094 states and 2827 transitions. [2023-12-22 02:36:50,457 INFO L78 Accepts]: Start accepts. Automaton has 2094 states and 2827 transitions. Word has length 66 [2023-12-22 02:36:50,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:50,457 INFO L495 AbstractCegarLoop]: Abstraction has 2094 states and 2827 transitions. [2023-12-22 02:36:50,457 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 02:36:50,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2094 states and 2827 transitions. [2023-12-22 02:36:50,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-22 02:36:50,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:50,459 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 02:36:50,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:50,684 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 02:36:50,685 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:50,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:50,685 INFO L85 PathProgramCache]: Analyzing trace with hash -840666750, now seen corresponding path program 1 times [2023-12-22 02:36:50,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:50,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [985574499] [2023-12-22 02:36:50,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:50,686 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 02:36:50,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:50,701 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 02:36:50,737 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 02:36:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:50,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:50,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:50,865 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 02:36:50,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:50,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:50,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [985574499] [2023-12-22 02:36:50,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [985574499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:50,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:50,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:50,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170877669] [2023-12-22 02:36:50,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:50,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:36:50,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:50,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:36:50,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:36:50,868 INFO L87 Difference]: Start difference. First operand 2094 states and 2827 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 02:36:51,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:51,215 INFO L93 Difference]: Finished difference Result 2411 states and 3230 transitions. [2023-12-22 02:36:51,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:36:51,216 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 02:36:51,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:51,227 INFO L225 Difference]: With dead ends: 2411 [2023-12-22 02:36:51,227 INFO L226 Difference]: Without dead ends: 2408 [2023-12-22 02:36:51,228 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 02:36:51,229 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 1371 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:51,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 768 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:36:51,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2408 states. [2023-12-22 02:36:51,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2408 to 2388. [2023-12-22 02:36:51,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2388 states, 1857 states have (on average 1.372105546580506) internal successors, (2548), 1889 states have internal predecessors, (2548), 272 states have call successors, (272), 204 states have call predecessors, (272), 257 states have return successors, (376), 299 states have call predecessors, (376), 269 states have call successors, (376) [2023-12-22 02:36:51,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 3196 transitions. [2023-12-22 02:36:51,351 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 3196 transitions. Word has length 67 [2023-12-22 02:36:51,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:51,351 INFO L495 AbstractCegarLoop]: Abstraction has 2388 states and 3196 transitions. [2023-12-22 02:36:51,351 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 02:36:51,351 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 3196 transitions. [2023-12-22 02:36:51,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-22 02:36:51,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:51,353 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 02:36:51,360 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 02:36:51,557 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 02:36:51,558 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:51,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:51,559 INFO L85 PathProgramCache]: Analyzing trace with hash -292413828, now seen corresponding path program 1 times [2023-12-22 02:36:51,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:51,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780318915] [2023-12-22 02:36:51,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:51,560 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 02:36:51,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:51,585 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 02:36:51,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-22 02:36:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:51,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:36:51,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:51,924 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 02:36:51,925 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:36:52,034 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 02:36:52,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:52,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780318915] [2023-12-22 02:36:52,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780318915] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:36:52,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:36:52,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2023-12-22 02:36:52,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694754135] [2023-12-22 02:36:52,035 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:36:52,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 02:36:52,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:52,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 02:36:52,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:36:52,041 INFO L87 Difference]: Start difference. First operand 2388 states and 3196 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 02:36:52,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:52,815 INFO L93 Difference]: Finished difference Result 4784 states and 6284 transitions. [2023-12-22 02:36:52,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:36:52,816 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 02:36:52,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:52,832 INFO L225 Difference]: With dead ends: 4784 [2023-12-22 02:36:52,832 INFO L226 Difference]: Without dead ends: 4781 [2023-12-22 02:36:52,834 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 02:36:52,834 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 1693 mSDsluCounter, 2166 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1693 SdHoareTripleChecker+Valid, 3012 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:52,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1693 Valid, 3012 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:36:52,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4781 states. [2023-12-22 02:36:53,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4781 to 3540. [2023-12-22 02:36:53,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3540 states, 2733 states have (on average 1.354555433589462) internal successors, (3702), 2779 states have internal predecessors, (3702), 404 states have call successors, (404), 316 states have call predecessors, (404), 401 states have return successors, (570), 449 states have call predecessors, (570), 401 states have call successors, (570) [2023-12-22 02:36:53,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 4676 transitions. [2023-12-22 02:36:53,060 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 4676 transitions. Word has length 68 [2023-12-22 02:36:53,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:53,061 INFO L495 AbstractCegarLoop]: Abstraction has 3540 states and 4676 transitions. [2023-12-22 02:36:53,061 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 02:36:53,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 4676 transitions. [2023-12-22 02:36:53,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-22 02:36:53,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:53,063 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 02:36:53,085 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 (10)] Ended with exit code 0 [2023-12-22 02:36:53,267 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 02:36:53,267 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:53,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:53,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1452481154, now seen corresponding path program 2 times [2023-12-22 02:36:53,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:53,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [622975967] [2023-12-22 02:36:53,268 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 02:36:53,268 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 02:36:53,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:53,269 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 02:36:53,274 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 02:36:53,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 02:36:53,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 02:36:53,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:36:53,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:53,369 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 02:36:53,369 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:53,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:53,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [622975967] [2023-12-22 02:36:53,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [622975967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:53,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:53,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:36:53,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289145370] [2023-12-22 02:36:53,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:53,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:36:53,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:53,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:36:53,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:53,374 INFO L87 Difference]: Start difference. First operand 3540 states and 4676 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 02:36:53,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:53,570 INFO L93 Difference]: Finished difference Result 5024 states and 6626 transitions. [2023-12-22 02:36:53,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:36:53,571 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 02:36:53,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:53,580 INFO L225 Difference]: With dead ends: 5024 [2023-12-22 02:36:53,580 INFO L226 Difference]: Without dead ends: 2424 [2023-12-22 02:36:53,584 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 02:36:53,585 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 708 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:53,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 856 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:36:53,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2424 states. [2023-12-22 02:36:53,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2424 to 2420. [2023-12-22 02:36:53,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 1893 states have (on average 1.3544638140517697) internal successors, (2564), 1921 states have internal predecessors, (2564), 272 states have call successors, (272), 204 states have call predecessors, (272), 253 states have return successors, (360), 299 states have call predecessors, (360), 269 states have call successors, (360) [2023-12-22 02:36:53,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3196 transitions. [2023-12-22 02:36:53,747 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3196 transitions. Word has length 71 [2023-12-22 02:36:53,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:53,747 INFO L495 AbstractCegarLoop]: Abstraction has 2420 states and 3196 transitions. [2023-12-22 02:36:53,747 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 02:36:53,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3196 transitions. [2023-12-22 02:36:53,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-22 02:36:53,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:53,749 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 02:36:53,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:53,952 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 02:36:53,953 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:53,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:53,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1086181570, now seen corresponding path program 1 times [2023-12-22 02:36:53,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:53,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386849641] [2023-12-22 02:36:53,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:53,954 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 02:36:53,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:53,955 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 02:36:53,969 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 02:36:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:54,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:36:54,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:54,059 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 02:36:54,059 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:54,059 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:54,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386849641] [2023-12-22 02:36:54,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386849641] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:54,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:54,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:36:54,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412504311] [2023-12-22 02:36:54,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:54,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:36:54,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:54,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:36:54,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:54,061 INFO L87 Difference]: Start difference. First operand 2420 states and 3196 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 02:36:54,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:54,414 INFO L93 Difference]: Finished difference Result 6321 states and 8119 transitions. [2023-12-22 02:36:54,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:36:54,414 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 02:36:54,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:54,425 INFO L225 Difference]: With dead ends: 6321 [2023-12-22 02:36:54,426 INFO L226 Difference]: Without dead ends: 3523 [2023-12-22 02:36:54,430 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 02:36:54,431 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 84 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:54,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 1432 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:36:54,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3523 states. [2023-12-22 02:36:54,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3523 to 3523. [2023-12-22 02:36:54,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3523 states, 2716 states have (on average 1.324742268041237) internal successors, (3598), 2756 states have internal predecessors, (3598), 403 states have call successors, (403), 316 states have call predecessors, (403), 402 states have return successors, (570), 455 states have call predecessors, (570), 400 states have call successors, (570) [2023-12-22 02:36:54,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3523 states to 3523 states and 4571 transitions. [2023-12-22 02:36:54,652 INFO L78 Accepts]: Start accepts. Automaton has 3523 states and 4571 transitions. Word has length 76 [2023-12-22 02:36:54,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:54,653 INFO L495 AbstractCegarLoop]: Abstraction has 3523 states and 4571 transitions. [2023-12-22 02:36:54,653 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 02:36:54,653 INFO L276 IsEmpty]: Start isEmpty. Operand 3523 states and 4571 transitions. [2023-12-22 02:36:54,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-22 02:36:54,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:54,655 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 02:36:54,659 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 02:36:54,859 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 02:36:54,860 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:54,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:54,860 INFO L85 PathProgramCache]: Analyzing trace with hash -341263735, now seen corresponding path program 1 times [2023-12-22 02:36:54,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:54,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451338616] [2023-12-22 02:36:54,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:54,861 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 02:36:54,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:54,866 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 02:36:54,866 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 02:36:54,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:54,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:54,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:55,020 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 02:36:55,021 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:55,021 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:55,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1451338616] [2023-12-22 02:36:55,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1451338616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:55,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:55,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:36:55,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429907254] [2023-12-22 02:36:55,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:55,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:36:55,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:55,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:36:55,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:36:55,024 INFO L87 Difference]: Start difference. First operand 3523 states and 4571 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 02:36:55,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:55,820 INFO L93 Difference]: Finished difference Result 6682 states and 8529 transitions. [2023-12-22 02:36:55,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:36:55,821 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 02:36:55,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:55,831 INFO L225 Difference]: With dead ends: 6682 [2023-12-22 02:36:55,832 INFO L226 Difference]: Without dead ends: 3561 [2023-12-22 02:36:55,836 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 02:36:55,836 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 999 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:55,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 693 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:36:55,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3561 states. [2023-12-22 02:36:56,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3561 to 3561. [2023-12-22 02:36:56,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3561 states, 2735 states have (on average 1.3071297989031079) internal successors, (3575), 2794 states have internal predecessors, (3575), 403 states have call successors, (403), 316 states have call predecessors, (403), 421 states have return successors, (570), 455 states have call predecessors, (570), 400 states have call successors, (570) [2023-12-22 02:36:56,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3561 states to 3561 states and 4548 transitions. [2023-12-22 02:36:56,041 INFO L78 Accepts]: Start accepts. Automaton has 3561 states and 4548 transitions. Word has length 85 [2023-12-22 02:36:56,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:56,042 INFO L495 AbstractCegarLoop]: Abstraction has 3561 states and 4548 transitions. [2023-12-22 02:36:56,042 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 02:36:56,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3561 states and 4548 transitions. [2023-12-22 02:36:56,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-22 02:36:56,045 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:56,045 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 02:36:56,049 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 (13)] Ended with exit code 0 [2023-12-22 02:36:56,249 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 02:36:56,250 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:56,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:56,251 INFO L85 PathProgramCache]: Analyzing trace with hash -967419781, now seen corresponding path program 1 times [2023-12-22 02:36:56,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:56,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723557372] [2023-12-22 02:36:56,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:56,251 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 02:36:56,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:56,265 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 02:36:56,275 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 02:36:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:56,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:36:56,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:56,378 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 02:36:56,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:56,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:56,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723557372] [2023-12-22 02:36:56,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1723557372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:56,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:56,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:36:56,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341793365] [2023-12-22 02:36:56,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:56,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:36:56,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:56,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:36:56,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:56,382 INFO L87 Difference]: Start difference. First operand 3561 states and 4548 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 02:36:56,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:56,642 INFO L93 Difference]: Finished difference Result 6329 states and 7950 transitions. [2023-12-22 02:36:56,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:36:56,643 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 02:36:56,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:56,653 INFO L225 Difference]: With dead ends: 6329 [2023-12-22 02:36:56,653 INFO L226 Difference]: Without dead ends: 3564 [2023-12-22 02:36:56,658 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 02:36:56,659 INFO L413 NwaCegarLoop]: 756 mSDtfsCounter, 91 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:56,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1426 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:36:56,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2023-12-22 02:36:56,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3561. [2023-12-22 02:36:56,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3561 states, 2735 states have (on average 1.2910420475319926) internal successors, (3531), 2794 states have internal predecessors, (3531), 403 states have call successors, (403), 316 states have call predecessors, (403), 421 states have return successors, (526), 455 states have call predecessors, (526), 400 states have call successors, (526) [2023-12-22 02:36:56,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3561 states to 3561 states and 4460 transitions. [2023-12-22 02:36:56,851 INFO L78 Accepts]: Start accepts. Automaton has 3561 states and 4460 transitions. Word has length 86 [2023-12-22 02:36:56,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:56,852 INFO L495 AbstractCegarLoop]: Abstraction has 3561 states and 4460 transitions. [2023-12-22 02:36:56,852 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 02:36:56,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3561 states and 4460 transitions. [2023-12-22 02:36:56,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-22 02:36:56,857 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:56,857 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:36:56,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-22 02:36:57,061 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 02:36:57,061 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:57,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:57,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1382957003, now seen corresponding path program 1 times [2023-12-22 02:36:57,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:57,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707490963] [2023-12-22 02:36:57,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:57,063 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 02:36:57,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:57,064 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 02:36:57,066 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 02:36:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:57,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:36:57,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:57,203 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-22 02:36:57,203 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:57,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:57,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707490963] [2023-12-22 02:36:57,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [707490963] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:57,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:57,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:36:57,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97944330] [2023-12-22 02:36:57,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:57,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:36:57,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:57,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:36:57,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:36:57,205 INFO L87 Difference]: Start difference. First operand 3561 states and 4460 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 02:36:57,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:57,543 INFO L93 Difference]: Finished difference Result 5133 states and 6365 transitions. [2023-12-22 02:36:57,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:36:57,544 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 131 [2023-12-22 02:36:57,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:57,549 INFO L225 Difference]: With dead ends: 5133 [2023-12-22 02:36:57,549 INFO L226 Difference]: Without dead ends: 1974 [2023-12-22 02:36:57,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 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 02:36:57,554 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 32 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3374 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:57,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 3374 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:36:57,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2023-12-22 02:36:57,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1874. [2023-12-22 02:36:57,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1874 states, 1517 states have (on average 1.3177323665128544) internal successors, (1999), 1532 states have internal predecessors, (1999), 180 states have call successors, (180), 130 states have call predecessors, (180), 175 states have return successors, (226), 212 states have call predecessors, (226), 177 states have call successors, (226) [2023-12-22 02:36:57,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2405 transitions. [2023-12-22 02:36:57,666 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 2405 transitions. Word has length 131 [2023-12-22 02:36:57,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:57,667 INFO L495 AbstractCegarLoop]: Abstraction has 1874 states and 2405 transitions. [2023-12-22 02:36:57,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 02:36:57,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2405 transitions. [2023-12-22 02:36:57,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-22 02:36:57,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:57,670 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:36:57,676 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 (15)] Ended with exit code 0 [2023-12-22 02:36:57,874 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 02:36:57,874 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:57,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:57,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1968087991, now seen corresponding path program 1 times [2023-12-22 02:36:57,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:57,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737931496] [2023-12-22 02:36:57,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:57,876 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 02:36:57,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:57,877 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 02:36:57,878 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 02:36:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:58,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:36:58,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:58,053 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-22 02:36:58,054 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:58,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:58,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737931496] [2023-12-22 02:36:58,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737931496] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:58,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:58,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:36:58,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435536350] [2023-12-22 02:36:58,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:58,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:36:58,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:58,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:36:58,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:36:58,055 INFO L87 Difference]: Start difference. First operand 1874 states and 2405 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-22 02:36:58,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:58,194 INFO L93 Difference]: Finished difference Result 1877 states and 2407 transitions. [2023-12-22 02:36:58,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:36:58,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 133 [2023-12-22 02:36:58,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:58,199 INFO L225 Difference]: With dead ends: 1877 [2023-12-22 02:36:58,199 INFO L226 Difference]: Without dead ends: 1582 [2023-12-22 02:36:58,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 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 02:36:58,200 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 113 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:58,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1248 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:36:58,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1582 states. [2023-12-22 02:36:58,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1582 to 1582. [2023-12-22 02:36:58,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1297 states have (on average 1.3377023901310716) internal successors, (1735), 1308 states have internal predecessors, (1735), 146 states have call successors, (146), 100 states have call predecessors, (146), 137 states have return successors, (183), 174 states have call predecessors, (183), 143 states have call successors, (183) [2023-12-22 02:36:58,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 2064 transitions. [2023-12-22 02:36:58,320 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 2064 transitions. Word has length 133 [2023-12-22 02:36:58,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:58,321 INFO L495 AbstractCegarLoop]: Abstraction has 1582 states and 2064 transitions. [2023-12-22 02:36:58,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-22 02:36:58,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 2064 transitions. [2023-12-22 02:36:58,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-22 02:36:58,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:58,324 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:36:58,330 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 02:36:58,528 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 02:36:58,529 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:58,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:58,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1783040043, now seen corresponding path program 1 times [2023-12-22 02:36:58,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:58,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830618261] [2023-12-22 02:36:58,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:58,530 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 02:36:58,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:58,532 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 02:36:58,568 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 02:36:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:58,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:36:58,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:36:58,684 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-22 02:36:58,684 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:36:58,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:36:58,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830618261] [2023-12-22 02:36:58,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1830618261] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:36:58,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:36:58,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:36:58,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650205894] [2023-12-22 02:36:58,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:36:58,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:36:58,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:36:58,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:36:58,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:36:58,686 INFO L87 Difference]: Start difference. First operand 1582 states and 2064 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-22 02:36:59,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:36:59,489 INFO L93 Difference]: Finished difference Result 2837 states and 3587 transitions. [2023-12-22 02:36:59,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:36:59,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 145 [2023-12-22 02:36:59,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:36:59,499 INFO L225 Difference]: With dead ends: 2837 [2023-12-22 02:36:59,499 INFO L226 Difference]: Without dead ends: 1810 [2023-12-22 02:36:59,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 142 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 02:36:59,501 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 356 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 02:36:59,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 1057 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 02:36:59,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2023-12-22 02:36:59,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1639. [2023-12-22 02:36:59,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1639 states, 1337 states have (on average 1.3208676140613314) internal successors, (1766), 1352 states have internal predecessors, (1766), 155 states have call successors, (155), 111 states have call predecessors, (155), 145 states have return successors, (194), 176 states have call predecessors, (194), 152 states have call successors, (194) [2023-12-22 02:36:59,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2115 transitions. [2023-12-22 02:36:59,587 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2115 transitions. Word has length 145 [2023-12-22 02:36:59,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:36:59,588 INFO L495 AbstractCegarLoop]: Abstraction has 1639 states and 2115 transitions. [2023-12-22 02:36:59,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-22 02:36:59,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2115 transitions. [2023-12-22 02:36:59,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-22 02:36:59,591 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:36:59,591 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:36:59,598 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 02:36:59,796 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 02:36:59,797 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:36:59,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:36:59,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1937284978, now seen corresponding path program 1 times [2023-12-22 02:36:59,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:36:59,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144319030] [2023-12-22 02:36:59,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:36:59,798 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 02:36:59,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:36:59,808 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 02:36:59,809 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 02:36:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:36:59,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-22 02:36:59,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:00,105 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-22 02:37:00,105 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:00,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:00,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144319030] [2023-12-22 02:37:00,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144319030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:00,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:00,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:00,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184407847] [2023-12-22 02:37:00,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:00,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:00,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:00,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:00,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:00,110 INFO L87 Difference]: Start difference. First operand 1639 states and 2115 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-22 02:37:00,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:00,955 INFO L93 Difference]: Finished difference Result 3923 states and 4879 transitions. [2023-12-22 02:37:00,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:00,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 147 [2023-12-22 02:37:00,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:00,963 INFO L225 Difference]: With dead ends: 3923 [2023-12-22 02:37:00,963 INFO L226 Difference]: Without dead ends: 2684 [2023-12-22 02:37:00,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 144 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 02:37:00,965 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 379 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:00,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 1025 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 02:37:00,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2023-12-22 02:37:01,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 2479. [2023-12-22 02:37:01,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2479 states, 1987 states have (on average 1.2677403120281832) internal successors, (2519), 2024 states have internal predecessors, (2519), 241 states have call successors, (241), 177 states have call predecessors, (241), 249 states have return successors, (324), 278 states have call predecessors, (324), 238 states have call successors, (324) [2023-12-22 02:37:01,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2479 states to 2479 states and 3084 transitions. [2023-12-22 02:37:01,154 INFO L78 Accepts]: Start accepts. Automaton has 2479 states and 3084 transitions. Word has length 147 [2023-12-22 02:37:01,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:01,154 INFO L495 AbstractCegarLoop]: Abstraction has 2479 states and 3084 transitions. [2023-12-22 02:37:01,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-22 02:37:01,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2479 states and 3084 transitions. [2023-12-22 02:37:01,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-22 02:37:01,157 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:01,157 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:01,164 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 (18)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:01,362 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 02:37:01,363 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:01,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:01,364 INFO L85 PathProgramCache]: Analyzing trace with hash 2028737642, now seen corresponding path program 1 times [2023-12-22 02:37:01,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:01,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785827168] [2023-12-22 02:37:01,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:01,364 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 02:37:01,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:01,365 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 02:37:01,366 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 02:37:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:01,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:01,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:01,529 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-12-22 02:37:01,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:01,530 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:01,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785827168] [2023-12-22 02:37:01,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785827168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:01,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:01,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:01,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887941980] [2023-12-22 02:37:01,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:01,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:01,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:01,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:01,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:01,534 INFO L87 Difference]: Start difference. First operand 2479 states and 3084 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 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 02:37:02,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:02,387 INFO L93 Difference]: Finished difference Result 4502 states and 5478 transitions. [2023-12-22 02:37:02,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:37:02,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 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 162 [2023-12-22 02:37:02,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:02,393 INFO L225 Difference]: With dead ends: 4502 [2023-12-22 02:37:02,393 INFO L226 Difference]: Without dead ends: 2240 [2023-12-22 02:37:02,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 158 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 02:37:02,396 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 1004 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:02,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 997 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 02:37:02,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2023-12-22 02:37:02,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2088. [2023-12-22 02:37:02,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2088 states, 1694 states have (on average 1.2786304604486423) internal successors, (2166), 1721 states have internal predecessors, (2166), 196 states have call successors, (196), 138 states have call predecessors, (196), 196 states have return successors, (253), 229 states have call predecessors, (253), 193 states have call successors, (253) [2023-12-22 02:37:02,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 2615 transitions. [2023-12-22 02:37:02,607 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 2615 transitions. Word has length 162 [2023-12-22 02:37:02,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:02,608 INFO L495 AbstractCegarLoop]: Abstraction has 2088 states and 2615 transitions. [2023-12-22 02:37:02,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 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 02:37:02,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 2615 transitions. [2023-12-22 02:37:02,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:02,610 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:02,610 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:02,622 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 02:37:02,814 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 02:37:02,815 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:02,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:02,815 INFO L85 PathProgramCache]: Analyzing trace with hash -219207472, now seen corresponding path program 1 times [2023-12-22 02:37:02,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:02,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90638211] [2023-12-22 02:37:02,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:02,816 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 02:37:02,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:02,817 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 02:37:02,825 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 02:37:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:02,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:37:02,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:02,986 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 02:37:02,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:02,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:02,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90638211] [2023-12-22 02:37:02,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [90638211] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:02,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:02,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:37:02,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053340554] [2023-12-22 02:37:02,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:02,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:37:02,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:02,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:37:02,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:37:02,988 INFO L87 Difference]: Start difference. First operand 2088 states and 2615 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 02:37:03,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:03,161 INFO L93 Difference]: Finished difference Result 2460 states and 3224 transitions. [2023-12-22 02:37:03,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:37:03,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:03,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:03,167 INFO L225 Difference]: With dead ends: 2460 [2023-12-22 02:37:03,167 INFO L226 Difference]: Without dead ends: 2088 [2023-12-22 02:37:03,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 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 02:37:03,169 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 609 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:03,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 789 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:03,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2023-12-22 02:37:03,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2088. [2023-12-22 02:37:03,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2088 states, 1694 states have (on average 1.2780401416765053) internal successors, (2165), 1721 states have internal predecessors, (2165), 196 states have call successors, (196), 138 states have call predecessors, (196), 196 states have return successors, (253), 229 states have call predecessors, (253), 193 states have call successors, (253) [2023-12-22 02:37:03,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 2614 transitions. [2023-12-22 02:37:03,307 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 2614 transitions. Word has length 172 [2023-12-22 02:37:03,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:03,307 INFO L495 AbstractCegarLoop]: Abstraction has 2088 states and 2614 transitions. [2023-12-22 02:37:03,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 02:37:03,308 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 2614 transitions. [2023-12-22 02:37:03,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:03,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:03,310 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:03,328 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 02:37:03,516 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 02:37:03,516 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:03,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:03,517 INFO L85 PathProgramCache]: Analyzing trace with hash -727986286, now seen corresponding path program 1 times [2023-12-22 02:37:03,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:03,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977647080] [2023-12-22 02:37:03,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:03,517 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 02:37:03,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:03,519 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 02:37:03,556 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 02:37:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:03,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:37:03,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:03,690 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 02:37:03,690 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:03,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:03,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977647080] [2023-12-22 02:37:03,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977647080] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:03,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:03,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:37:03,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350422714] [2023-12-22 02:37:03,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:03,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:37:03,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:03,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:37:03,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:37:03,692 INFO L87 Difference]: Start difference. First operand 2088 states and 2614 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 02:37:03,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:03,851 INFO L93 Difference]: Finished difference Result 2452 states and 3207 transitions. [2023-12-22 02:37:03,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:37:03,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:03,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:03,859 INFO L225 Difference]: With dead ends: 2452 [2023-12-22 02:37:03,859 INFO L226 Difference]: Without dead ends: 2088 [2023-12-22 02:37:03,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 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 02:37:03,861 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 600 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:03,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 788 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:03,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2023-12-22 02:37:04,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2088. [2023-12-22 02:37:04,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2088 states, 1694 states have (on average 1.2774498229043683) internal successors, (2164), 1721 states have internal predecessors, (2164), 196 states have call successors, (196), 138 states have call predecessors, (196), 196 states have return successors, (253), 229 states have call predecessors, (253), 193 states have call successors, (253) [2023-12-22 02:37:04,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 2613 transitions. [2023-12-22 02:37:04,018 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 2613 transitions. Word has length 172 [2023-12-22 02:37:04,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:04,019 INFO L495 AbstractCegarLoop]: Abstraction has 2088 states and 2613 transitions. [2023-12-22 02:37:04,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 02:37:04,019 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 2613 transitions. [2023-12-22 02:37:04,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:04,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:04,021 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:04,038 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 02:37:04,227 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 02:37:04,228 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:04,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:04,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1467242580, now seen corresponding path program 1 times [2023-12-22 02:37:04,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:04,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844119540] [2023-12-22 02:37:04,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:04,229 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 02:37:04,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:04,230 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 02:37:04,273 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 02:37:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:04,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:04,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:04,456 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 02:37:04,457 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:04,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:04,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844119540] [2023-12-22 02:37:04,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844119540] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:04,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:04,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:04,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16027405] [2023-12-22 02:37:04,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:04,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:04,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:04,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:04,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:04,459 INFO L87 Difference]: Start difference. First operand 2088 states and 2613 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 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 02:37:05,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:05,208 INFO L93 Difference]: Finished difference Result 2855 states and 3880 transitions. [2023-12-22 02:37:05,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:37:05,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:05,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:05,213 INFO L225 Difference]: With dead ends: 2855 [2023-12-22 02:37:05,213 INFO L226 Difference]: Without dead ends: 2498 [2023-12-22 02:37:05,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:05,215 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 1339 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:05,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 1736 Invalid, 995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:37:05,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2498 states. [2023-12-22 02:37:05,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2498 to 2465. [2023-12-22 02:37:05,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2042 states have (on average 1.342311459353575) internal successors, (2741), 2070 states have internal predecessors, (2741), 218 states have call successors, (218), 144 states have call predecessors, (218), 203 states have return successors, (276), 251 states have call predecessors, (276), 215 states have call successors, (276) [2023-12-22 02:37:05,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3235 transitions. [2023-12-22 02:37:05,375 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3235 transitions. Word has length 172 [2023-12-22 02:37:05,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:05,376 INFO L495 AbstractCegarLoop]: Abstraction has 2465 states and 3235 transitions. [2023-12-22 02:37:05,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 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 02:37:05,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3235 transitions. [2023-12-22 02:37:05,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:05,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:05,378 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:05,394 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 02:37:05,583 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 02:37:05,583 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:05,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:05,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1822619440, now seen corresponding path program 1 times [2023-12-22 02:37:05,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:05,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741891063] [2023-12-22 02:37:05,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:05,584 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 02:37:05,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:05,586 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 02:37:05,588 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 02:37:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:05,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:05,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:05,811 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 02:37:05,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:05,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:05,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741891063] [2023-12-22 02:37:05,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741891063] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:05,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:05,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:05,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557480358] [2023-12-22 02:37:05,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:05,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:05,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:05,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:05,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:05,813 INFO L87 Difference]: Start difference. First operand 2465 states and 3235 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:06,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:06,460 INFO L93 Difference]: Finished difference Result 3199 states and 4444 transitions. [2023-12-22 02:37:06,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:06,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:06,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:06,465 INFO L225 Difference]: With dead ends: 3199 [2023-12-22 02:37:06,465 INFO L226 Difference]: Without dead ends: 2465 [2023-12-22 02:37:06,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:06,468 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 986 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:06,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1017 Valid, 1138 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:37:06,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2023-12-22 02:37:06,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2465. [2023-12-22 02:37:06,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2042 states have (on average 1.3388834476003917) internal successors, (2734), 2070 states have internal predecessors, (2734), 218 states have call successors, (218), 144 states have call predecessors, (218), 203 states have return successors, (276), 251 states have call predecessors, (276), 215 states have call successors, (276) [2023-12-22 02:37:06,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3228 transitions. [2023-12-22 02:37:06,703 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3228 transitions. Word has length 172 [2023-12-22 02:37:06,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:06,703 INFO L495 AbstractCegarLoop]: Abstraction has 2465 states and 3228 transitions. [2023-12-22 02:37:06,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:06,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3228 transitions. [2023-12-22 02:37:06,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:06,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:06,706 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:06,724 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 (23)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:06,912 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 02:37:06,912 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:06,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:06,913 INFO L85 PathProgramCache]: Analyzing trace with hash -543270700, now seen corresponding path program 1 times [2023-12-22 02:37:06,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:06,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156753131] [2023-12-22 02:37:06,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:06,914 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 02:37:06,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:06,915 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 02:37:06,937 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 02:37:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:07,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:07,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:07,175 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 02:37:07,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:07,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:07,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156753131] [2023-12-22 02:37:07,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156753131] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:07,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:07,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:07,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579829203] [2023-12-22 02:37:07,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:07,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:07,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:07,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:07,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:07,177 INFO L87 Difference]: Start difference. First operand 2465 states and 3228 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:07,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:07,838 INFO L93 Difference]: Finished difference Result 3199 states and 4430 transitions. [2023-12-22 02:37:07,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:07,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:07,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:07,847 INFO L225 Difference]: With dead ends: 3199 [2023-12-22 02:37:07,847 INFO L226 Difference]: Without dead ends: 2465 [2023-12-22 02:37:07,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:07,849 INFO L413 NwaCegarLoop]: 439 mSDtfsCounter, 980 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:07,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 1131 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:37:07,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2023-12-22 02:37:08,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2465. [2023-12-22 02:37:08,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2042 states have (on average 1.3354554358472086) internal successors, (2727), 2070 states have internal predecessors, (2727), 218 states have call successors, (218), 144 states have call predecessors, (218), 203 states have return successors, (276), 251 states have call predecessors, (276), 215 states have call successors, (276) [2023-12-22 02:37:08,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3221 transitions. [2023-12-22 02:37:08,061 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3221 transitions. Word has length 172 [2023-12-22 02:37:08,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:08,061 INFO L495 AbstractCegarLoop]: Abstraction has 2465 states and 3221 transitions. [2023-12-22 02:37:08,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:08,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3221 transitions. [2023-12-22 02:37:08,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:08,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:08,063 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:08,088 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 02:37:08,269 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 02:37:08,269 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:08,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:08,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1437661264, now seen corresponding path program 1 times [2023-12-22 02:37:08,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:08,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219983547] [2023-12-22 02:37:08,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:08,270 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 02:37:08,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:08,271 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 02:37:08,273 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 02:37:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:08,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:08,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:08,477 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 02:37:08,477 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:08,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:08,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219983547] [2023-12-22 02:37:08,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219983547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:08,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:08,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:08,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823460212] [2023-12-22 02:37:08,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:08,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:08,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:08,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:08,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:08,479 INFO L87 Difference]: Start difference. First operand 2465 states and 3221 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:09,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:09,117 INFO L93 Difference]: Finished difference Result 3199 states and 4416 transitions. [2023-12-22 02:37:09,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:09,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:09,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:09,122 INFO L225 Difference]: With dead ends: 3199 [2023-12-22 02:37:09,122 INFO L226 Difference]: Without dead ends: 2465 [2023-12-22 02:37:09,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:09,124 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 974 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:09,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 1124 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:37:09,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2023-12-22 02:37:09,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2465. [2023-12-22 02:37:09,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2042 states have (on average 1.3320274240940255) internal successors, (2720), 2070 states have internal predecessors, (2720), 218 states have call successors, (218), 144 states have call predecessors, (218), 203 states have return successors, (276), 251 states have call predecessors, (276), 215 states have call successors, (276) [2023-12-22 02:37:09,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3214 transitions. [2023-12-22 02:37:09,369 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3214 transitions. Word has length 172 [2023-12-22 02:37:09,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:09,369 INFO L495 AbstractCegarLoop]: Abstraction has 2465 states and 3214 transitions. [2023-12-22 02:37:09,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:09,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3214 transitions. [2023-12-22 02:37:09,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:09,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:09,372 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:09,400 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 02:37:09,578 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 02:37:09,579 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:09,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:09,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1823573676, now seen corresponding path program 1 times [2023-12-22 02:37:09,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:09,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17329858] [2023-12-22 02:37:09,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:09,580 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 02:37:09,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:09,601 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 02:37:09,652 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 (26)] Waiting until timeout for monitored process [2023-12-22 02:37:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:09,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:09,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:09,838 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 02:37:09,838 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:09,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:09,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17329858] [2023-12-22 02:37:09,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17329858] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:09,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:09,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:09,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972740577] [2023-12-22 02:37:09,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:09,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:09,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:09,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:09,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:09,840 INFO L87 Difference]: Start difference. First operand 2465 states and 3214 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:10,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:10,565 INFO L93 Difference]: Finished difference Result 3199 states and 4402 transitions. [2023-12-22 02:37:10,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:10,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:10,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:10,569 INFO L225 Difference]: With dead ends: 3199 [2023-12-22 02:37:10,570 INFO L226 Difference]: Without dead ends: 2465 [2023-12-22 02:37:10,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:10,572 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 968 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:10,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 1117 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:37:10,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2023-12-22 02:37:10,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2465. [2023-12-22 02:37:10,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2042 states have (on average 1.3285994123408422) internal successors, (2713), 2070 states have internal predecessors, (2713), 218 states have call successors, (218), 144 states have call predecessors, (218), 203 states have return successors, (276), 251 states have call predecessors, (276), 215 states have call successors, (276) [2023-12-22 02:37:10,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3207 transitions. [2023-12-22 02:37:10,757 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3207 transitions. Word has length 172 [2023-12-22 02:37:10,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:10,757 INFO L495 AbstractCegarLoop]: Abstraction has 2465 states and 3207 transitions. [2023-12-22 02:37:10,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:10,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3207 transitions. [2023-12-22 02:37:10,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:10,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:10,759 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:10,778 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 (26)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:10,965 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 02:37:10,965 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:10,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:10,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1148214674, now seen corresponding path program 1 times [2023-12-22 02:37:10,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:10,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110141267] [2023-12-22 02:37:10,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:10,967 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 02:37:10,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:10,969 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 02:37:10,970 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 02:37:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:11,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:11,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:11,184 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 02:37:11,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:11,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:11,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110141267] [2023-12-22 02:37:11,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110141267] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:11,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:11,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:11,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075735253] [2023-12-22 02:37:11,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:11,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:11,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:11,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:11,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:11,186 INFO L87 Difference]: Start difference. First operand 2465 states and 3207 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:11,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:11,835 INFO L93 Difference]: Finished difference Result 3199 states and 4388 transitions. [2023-12-22 02:37:11,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:11,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:11,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:11,852 INFO L225 Difference]: With dead ends: 3199 [2023-12-22 02:37:11,852 INFO L226 Difference]: Without dead ends: 2465 [2023-12-22 02:37:11,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:11,855 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 961 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:11,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 1110 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:37:11,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2023-12-22 02:37:12,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2465. [2023-12-22 02:37:12,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2042 states have (on average 1.3251714005876591) internal successors, (2706), 2070 states have internal predecessors, (2706), 218 states have call successors, (218), 144 states have call predecessors, (218), 203 states have return successors, (276), 251 states have call predecessors, (276), 215 states have call successors, (276) [2023-12-22 02:37:12,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3200 transitions. [2023-12-22 02:37:12,105 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3200 transitions. Word has length 172 [2023-12-22 02:37:12,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:12,105 INFO L495 AbstractCegarLoop]: Abstraction has 2465 states and 3200 transitions. [2023-12-22 02:37:12,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:12,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3200 transitions. [2023-12-22 02:37:12,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:12,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:12,107 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:12,113 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 (27)] Ended with exit code 0 [2023-12-22 02:37:12,313 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 02:37:12,313 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:12,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:12,314 INFO L85 PathProgramCache]: Analyzing trace with hash 114694926, now seen corresponding path program 1 times [2023-12-22 02:37:12,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:12,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790010774] [2023-12-22 02:37:12,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:12,315 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 02:37:12,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:12,316 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 02:37:12,321 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 02:37:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:12,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:12,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:12,513 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 02:37:12,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:12,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:12,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790010774] [2023-12-22 02:37:12,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790010774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:12,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:12,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:12,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353282029] [2023-12-22 02:37:12,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:12,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:12,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:12,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:12,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:12,515 INFO L87 Difference]: Start difference. First operand 2465 states and 3200 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:13,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:13,091 INFO L93 Difference]: Finished difference Result 3199 states and 4374 transitions. [2023-12-22 02:37:13,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:13,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:13,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:13,095 INFO L225 Difference]: With dead ends: 3199 [2023-12-22 02:37:13,095 INFO L226 Difference]: Without dead ends: 2465 [2023-12-22 02:37:13,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:13,097 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 955 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:13,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 1103 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:37:13,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2023-12-22 02:37:13,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2465. [2023-12-22 02:37:13,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2042 states have (on average 1.321743388834476) internal successors, (2699), 2070 states have internal predecessors, (2699), 218 states have call successors, (218), 144 states have call predecessors, (218), 203 states have return successors, (276), 251 states have call predecessors, (276), 215 states have call successors, (276) [2023-12-22 02:37:13,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3193 transitions. [2023-12-22 02:37:13,306 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3193 transitions. Word has length 172 [2023-12-22 02:37:13,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:13,307 INFO L495 AbstractCegarLoop]: Abstraction has 2465 states and 3193 transitions. [2023-12-22 02:37:13,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:13,307 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3193 transitions. [2023-12-22 02:37:13,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:13,308 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:13,308 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:13,316 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 02:37:13,514 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 02:37:13,514 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:13,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:13,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1304117742, now seen corresponding path program 1 times [2023-12-22 02:37:13,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:13,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547976813] [2023-12-22 02:37:13,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:13,516 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 02:37:13,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:13,517 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 02:37:13,519 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 02:37:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:13,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:13,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:13,716 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 02:37:13,716 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:13,716 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:13,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [547976813] [2023-12-22 02:37:13,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [547976813] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:13,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:13,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:13,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551124108] [2023-12-22 02:37:13,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:13,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:13,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:13,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:13,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:13,718 INFO L87 Difference]: Start difference. First operand 2465 states and 3193 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:14,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:14,390 INFO L93 Difference]: Finished difference Result 3199 states and 4360 transitions. [2023-12-22 02:37:14,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:14,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:14,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:14,395 INFO L225 Difference]: With dead ends: 3199 [2023-12-22 02:37:14,395 INFO L226 Difference]: Without dead ends: 2465 [2023-12-22 02:37:14,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:14,397 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 949 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:14,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 1096 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:37:14,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2023-12-22 02:37:14,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2465. [2023-12-22 02:37:14,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2042 states have (on average 1.3183153770812928) internal successors, (2692), 2070 states have internal predecessors, (2692), 218 states have call successors, (218), 144 states have call predecessors, (218), 203 states have return successors, (276), 251 states have call predecessors, (276), 215 states have call successors, (276) [2023-12-22 02:37:14,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3186 transitions. [2023-12-22 02:37:14,628 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3186 transitions. Word has length 172 [2023-12-22 02:37:14,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:14,629 INFO L495 AbstractCegarLoop]: Abstraction has 2465 states and 3186 transitions. [2023-12-22 02:37:14,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:14,629 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3186 transitions. [2023-12-22 02:37:14,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:14,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:14,630 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:14,639 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 02:37:14,836 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 02:37:14,836 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:14,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:14,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1421060750, now seen corresponding path program 1 times [2023-12-22 02:37:14,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:14,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757761959] [2023-12-22 02:37:14,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:14,838 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 02:37:14,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:14,839 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 02:37:14,840 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 02:37:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:14,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:14,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:15,042 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 02:37:15,042 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:15,042 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:15,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757761959] [2023-12-22 02:37:15,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757761959] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:15,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:15,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:15,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272828546] [2023-12-22 02:37:15,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:15,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:15,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:15,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:15,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:15,044 INFO L87 Difference]: Start difference. First operand 2465 states and 3186 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:15,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:15,691 INFO L93 Difference]: Finished difference Result 3199 states and 4346 transitions. [2023-12-22 02:37:15,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:15,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:15,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:15,715 INFO L225 Difference]: With dead ends: 3199 [2023-12-22 02:37:15,715 INFO L226 Difference]: Without dead ends: 2465 [2023-12-22 02:37:15,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:15,717 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 943 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:15,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 1089 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:37:15,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2023-12-22 02:37:15,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2465. [2023-12-22 02:37:15,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2042 states have (on average 1.3148873653281097) internal successors, (2685), 2070 states have internal predecessors, (2685), 218 states have call successors, (218), 144 states have call predecessors, (218), 203 states have return successors, (276), 251 states have call predecessors, (276), 215 states have call successors, (276) [2023-12-22 02:37:15,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3179 transitions. [2023-12-22 02:37:15,989 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3179 transitions. Word has length 172 [2023-12-22 02:37:15,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:15,989 INFO L495 AbstractCegarLoop]: Abstraction has 2465 states and 3179 transitions. [2023-12-22 02:37:15,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:15,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3179 transitions. [2023-12-22 02:37:15,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:15,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:15,991 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:15,996 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 02:37:16,196 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 02:37:16,197 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:16,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:16,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1924611730, now seen corresponding path program 1 times [2023-12-22 02:37:16,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:16,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617008684] [2023-12-22 02:37:16,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:16,198 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 02:37:16,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:16,199 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 02:37:16,203 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 02:37:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:16,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:16,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:16,389 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 02:37:16,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:16,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:16,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617008684] [2023-12-22 02:37:16,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617008684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:16,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:16,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:16,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508693789] [2023-12-22 02:37:16,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:16,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:16,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:16,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:16,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:16,391 INFO L87 Difference]: Start difference. First operand 2465 states and 3179 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:16,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:16,962 INFO L93 Difference]: Finished difference Result 3199 states and 4332 transitions. [2023-12-22 02:37:16,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:16,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:16,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:16,967 INFO L225 Difference]: With dead ends: 3199 [2023-12-22 02:37:16,967 INFO L226 Difference]: Without dead ends: 2465 [2023-12-22 02:37:16,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:16,969 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 937 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:16,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 1082 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:37:16,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2023-12-22 02:37:17,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2465. [2023-12-22 02:37:17,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2042 states have (on average 1.3114593535749266) internal successors, (2678), 2070 states have internal predecessors, (2678), 218 states have call successors, (218), 144 states have call predecessors, (218), 203 states have return successors, (276), 251 states have call predecessors, (276), 215 states have call successors, (276) [2023-12-22 02:37:17,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3172 transitions. [2023-12-22 02:37:17,229 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3172 transitions. Word has length 172 [2023-12-22 02:37:17,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:17,230 INFO L495 AbstractCegarLoop]: Abstraction has 2465 states and 3172 transitions. [2023-12-22 02:37:17,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:17,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3172 transitions. [2023-12-22 02:37:17,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:17,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:17,231 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:17,236 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 02:37:17,432 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 02:37:17,433 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:17,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:17,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1940855310, now seen corresponding path program 1 times [2023-12-22 02:37:17,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:17,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503743739] [2023-12-22 02:37:17,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:17,434 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 02:37:17,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:17,435 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 02:37:17,436 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 02:37:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:17,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:17,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:17,645 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 02:37:17,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:17,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:17,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503743739] [2023-12-22 02:37:17,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1503743739] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:17,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:17,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:17,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672517653] [2023-12-22 02:37:17,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:17,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:17,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:17,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:17,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:17,647 INFO L87 Difference]: Start difference. First operand 2465 states and 3172 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:18,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:18,328 INFO L93 Difference]: Finished difference Result 3199 states and 4318 transitions. [2023-12-22 02:37:18,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:18,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:18,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:18,335 INFO L225 Difference]: With dead ends: 3199 [2023-12-22 02:37:18,335 INFO L226 Difference]: Without dead ends: 2465 [2023-12-22 02:37:18,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:18,337 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 931 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:18,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 1075 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:37:18,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2023-12-22 02:37:18,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2465. [2023-12-22 02:37:18,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2042 states have (on average 1.3080313418217433) internal successors, (2671), 2070 states have internal predecessors, (2671), 218 states have call successors, (218), 144 states have call predecessors, (218), 203 states have return successors, (276), 251 states have call predecessors, (276), 215 states have call successors, (276) [2023-12-22 02:37:18,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3165 transitions. [2023-12-22 02:37:18,610 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3165 transitions. Word has length 172 [2023-12-22 02:37:18,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:18,610 INFO L495 AbstractCegarLoop]: Abstraction has 2465 states and 3165 transitions. [2023-12-22 02:37:18,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:18,611 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3165 transitions. [2023-12-22 02:37:18,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:18,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:18,612 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:18,618 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 (32)] Ended with exit code 0 [2023-12-22 02:37:18,818 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 02:37:18,818 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:18,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:18,819 INFO L85 PathProgramCache]: Analyzing trace with hash -691020014, now seen corresponding path program 1 times [2023-12-22 02:37:18,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:18,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782123494] [2023-12-22 02:37:18,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:18,819 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 02:37:18,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:18,821 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 02:37:18,836 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 02:37:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:18,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:18,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:19,027 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 02:37:19,027 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:19,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:19,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782123494] [2023-12-22 02:37:19,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1782123494] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:19,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:19,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:19,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687165433] [2023-12-22 02:37:19,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:19,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:19,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:19,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:19,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:19,030 INFO L87 Difference]: Start difference. First operand 2465 states and 3165 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:19,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:19,708 INFO L93 Difference]: Finished difference Result 3199 states and 4304 transitions. [2023-12-22 02:37:19,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:19,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:19,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:19,714 INFO L225 Difference]: With dead ends: 3199 [2023-12-22 02:37:19,714 INFO L226 Difference]: Without dead ends: 2465 [2023-12-22 02:37:19,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:19,716 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 925 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:19,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [956 Valid, 1068 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:37:19,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2023-12-22 02:37:19,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2465. [2023-12-22 02:37:19,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2042 states have (on average 1.3046033300685602) internal successors, (2664), 2070 states have internal predecessors, (2664), 218 states have call successors, (218), 144 states have call predecessors, (218), 203 states have return successors, (276), 251 states have call predecessors, (276), 215 states have call successors, (276) [2023-12-22 02:37:19,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3158 transitions. [2023-12-22 02:37:19,977 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3158 transitions. Word has length 172 [2023-12-22 02:37:19,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:19,978 INFO L495 AbstractCegarLoop]: Abstraction has 2465 states and 3158 transitions. [2023-12-22 02:37:19,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:19,978 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3158 transitions. [2023-12-22 02:37:19,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:19,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:19,979 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:19,985 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 (33)] Ended with exit code 0 [2023-12-22 02:37:20,186 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 02:37:20,186 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:20,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:20,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1468064080, now seen corresponding path program 1 times [2023-12-22 02:37:20,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:20,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012717998] [2023-12-22 02:37:20,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:20,187 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 02:37:20,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:20,188 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 02:37:20,190 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 02:37:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:20,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:20,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:20,392 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 02:37:20,392 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:20,393 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:20,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012717998] [2023-12-22 02:37:20,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012717998] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:20,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:20,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:20,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979874455] [2023-12-22 02:37:20,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:20,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:20,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:20,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:20,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:20,395 INFO L87 Difference]: Start difference. First operand 2465 states and 3158 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:21,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:21,275 INFO L93 Difference]: Finished difference Result 3377 states and 4582 transitions. [2023-12-22 02:37:21,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:21,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:21,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:21,280 INFO L225 Difference]: With dead ends: 3377 [2023-12-22 02:37:21,280 INFO L226 Difference]: Without dead ends: 2643 [2023-12-22 02:37:21,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:21,283 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 1041 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:21,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1072 Valid, 1062 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:37:21,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2643 states. [2023-12-22 02:37:21,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2643 to 2643. [2023-12-22 02:37:21,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2643 states, 2214 states have (on average 1.3148148148148149) internal successors, (2911), 2242 states have internal predecessors, (2911), 220 states have call successors, (220), 148 states have call predecessors, (220), 207 states have return successors, (278), 253 states have call predecessors, (278), 217 states have call successors, (278) [2023-12-22 02:37:21,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 3409 transitions. [2023-12-22 02:37:21,616 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 3409 transitions. Word has length 172 [2023-12-22 02:37:21,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:21,617 INFO L495 AbstractCegarLoop]: Abstraction has 2643 states and 3409 transitions. [2023-12-22 02:37:21,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:21,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 3409 transitions. [2023-12-22 02:37:21,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:21,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:21,618 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:21,624 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 (34)] Ended with exit code 0 [2023-12-22 02:37:21,824 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 02:37:21,824 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:21,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:21,825 INFO L85 PathProgramCache]: Analyzing trace with hash -2134254900, now seen corresponding path program 1 times [2023-12-22 02:37:21,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:21,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465566228] [2023-12-22 02:37:21,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:21,825 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 02:37:21,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:21,826 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 02:37:21,827 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 02:37:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:21,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:21,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:22,043 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 02:37:22,044 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:22,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:22,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465566228] [2023-12-22 02:37:22,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [465566228] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:22,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:22,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:22,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527986708] [2023-12-22 02:37:22,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:22,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:22,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:22,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:22,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:22,045 INFO L87 Difference]: Start difference. First operand 2643 states and 3409 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:22,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:22,808 INFO L93 Difference]: Finished difference Result 3733 states and 5084 transitions. [2023-12-22 02:37:22,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:22,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:22,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:22,813 INFO L225 Difference]: With dead ends: 3733 [2023-12-22 02:37:22,813 INFO L226 Difference]: Without dead ends: 2821 [2023-12-22 02:37:22,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:22,816 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 1034 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:22,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 1055 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:37:22,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2821 states. [2023-12-22 02:37:23,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 2821. [2023-12-22 02:37:23,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2821 states, 2386 states have (on average 1.3218776194467727) internal successors, (3154), 2414 states have internal predecessors, (3154), 222 states have call successors, (222), 152 states have call predecessors, (222), 211 states have return successors, (280), 255 states have call predecessors, (280), 219 states have call successors, (280) [2023-12-22 02:37:23,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 3656 transitions. [2023-12-22 02:37:23,106 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 3656 transitions. Word has length 172 [2023-12-22 02:37:23,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:23,106 INFO L495 AbstractCegarLoop]: Abstraction has 2821 states and 3656 transitions. [2023-12-22 02:37:23,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:23,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 3656 transitions. [2023-12-22 02:37:23,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:23,108 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:23,108 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:23,114 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 (35)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:23,314 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 02:37:23,314 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:23,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:23,315 INFO L85 PathProgramCache]: Analyzing trace with hash 982924049, now seen corresponding path program 1 times [2023-12-22 02:37:23,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:23,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702451215] [2023-12-22 02:37:23,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:23,316 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 02:37:23,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:23,317 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 02:37:23,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-22 02:37:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:23,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:23,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:23,541 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 02:37:23,542 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:23,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:23,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702451215] [2023-12-22 02:37:23,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702451215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:23,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:23,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:23,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737931363] [2023-12-22 02:37:23,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:23,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:23,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:23,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:23,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:23,544 INFO L87 Difference]: Start difference. First operand 2821 states and 3656 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:24,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:24,461 INFO L93 Difference]: Finished difference Result 4089 states and 5578 transitions. [2023-12-22 02:37:24,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:24,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:24,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:24,467 INFO L225 Difference]: With dead ends: 4089 [2023-12-22 02:37:24,467 INFO L226 Difference]: Without dead ends: 2999 [2023-12-22 02:37:24,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:24,470 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 1028 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:24,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 1048 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:37:24,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2023-12-22 02:37:24,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 2999. [2023-12-22 02:37:24,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2999 states, 2558 states have (on average 1.3264268960125098) internal successors, (3393), 2586 states have internal predecessors, (3393), 224 states have call successors, (224), 156 states have call predecessors, (224), 215 states have return successors, (282), 257 states have call predecessors, (282), 221 states have call successors, (282) [2023-12-22 02:37:24,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2999 states to 2999 states and 3899 transitions. [2023-12-22 02:37:24,786 INFO L78 Accepts]: Start accepts. Automaton has 2999 states and 3899 transitions. Word has length 172 [2023-12-22 02:37:24,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:24,786 INFO L495 AbstractCegarLoop]: Abstraction has 2999 states and 3899 transitions. [2023-12-22 02:37:24,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:24,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2999 states and 3899 transitions. [2023-12-22 02:37:24,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:24,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:24,789 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:24,797 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 02:37:24,995 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 02:37:24,996 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:24,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:24,996 INFO L85 PathProgramCache]: Analyzing trace with hash -611884147, now seen corresponding path program 1 times [2023-12-22 02:37:24,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:24,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97947842] [2023-12-22 02:37:24,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:24,997 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 02:37:24,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:24,998 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 02:37:24,999 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 02:37:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:25,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:25,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:25,186 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 02:37:25,186 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:25,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:25,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97947842] [2023-12-22 02:37:25,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97947842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:25,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:25,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:25,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659309059] [2023-12-22 02:37:25,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:25,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:25,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:25,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:25,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:25,188 INFO L87 Difference]: Start difference. First operand 2999 states and 3899 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:26,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:26,028 INFO L93 Difference]: Finished difference Result 4445 states and 6064 transitions. [2023-12-22 02:37:26,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:26,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:26,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:26,035 INFO L225 Difference]: With dead ends: 4445 [2023-12-22 02:37:26,035 INFO L226 Difference]: Without dead ends: 3177 [2023-12-22 02:37:26,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:26,038 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 1021 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:26,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 1041 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:37:26,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3177 states. [2023-12-22 02:37:26,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3177 to 3177. [2023-12-22 02:37:26,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3177 states, 2730 states have (on average 1.3289377289377289) internal successors, (3628), 2758 states have internal predecessors, (3628), 226 states have call successors, (226), 160 states have call predecessors, (226), 219 states have return successors, (284), 259 states have call predecessors, (284), 223 states have call successors, (284) [2023-12-22 02:37:26,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3177 states to 3177 states and 4138 transitions. [2023-12-22 02:37:26,532 INFO L78 Accepts]: Start accepts. Automaton has 3177 states and 4138 transitions. Word has length 172 [2023-12-22 02:37:26,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:26,532 INFO L495 AbstractCegarLoop]: Abstraction has 3177 states and 4138 transitions. [2023-12-22 02:37:26,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:26,533 INFO L276 IsEmpty]: Start isEmpty. Operand 3177 states and 4138 transitions. [2023-12-22 02:37:26,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:26,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:26,535 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:26,544 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 (37)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:26,742 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 02:37:26,744 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:26,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:26,745 INFO L85 PathProgramCache]: Analyzing trace with hash -841801198, now seen corresponding path program 1 times [2023-12-22 02:37:26,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:26,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1557582005] [2023-12-22 02:37:26,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:26,746 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 02:37:26,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:26,747 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 02:37:26,748 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 02:37:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:26,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:26,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:26,986 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 02:37:26,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:26,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:26,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1557582005] [2023-12-22 02:37:26,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1557582005] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:26,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:26,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:26,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936337171] [2023-12-22 02:37:26,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:26,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:26,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:26,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:26,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:26,988 INFO L87 Difference]: Start difference. First operand 3177 states and 4138 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:27,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:27,962 INFO L93 Difference]: Finished difference Result 4801 states and 6542 transitions. [2023-12-22 02:37:27,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:27,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:27,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:27,968 INFO L225 Difference]: With dead ends: 4801 [2023-12-22 02:37:27,968 INFO L226 Difference]: Without dead ends: 3355 [2023-12-22 02:37:27,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:27,971 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 1014 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:27,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 1034 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:37:27,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2023-12-22 02:37:28,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2023-12-22 02:37:28,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 2902 states have (on average 1.3297725706409373) internal successors, (3859), 2930 states have internal predecessors, (3859), 228 states have call successors, (228), 164 states have call predecessors, (228), 223 states have return successors, (286), 261 states have call predecessors, (286), 225 states have call successors, (286) [2023-12-22 02:37:28,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 4373 transitions. [2023-12-22 02:37:28,315 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 4373 transitions. Word has length 172 [2023-12-22 02:37:28,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:28,315 INFO L495 AbstractCegarLoop]: Abstraction has 3355 states and 4373 transitions. [2023-12-22 02:37:28,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:28,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 4373 transitions. [2023-12-22 02:37:28,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:28,318 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:28,318 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:28,323 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 (38)] Ended with exit code 0 [2023-12-22 02:37:28,519 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 02:37:28,520 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:28,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:28,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1363314285, now seen corresponding path program 1 times [2023-12-22 02:37:28,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:28,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465278243] [2023-12-22 02:37:28,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:28,521 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 02:37:28,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:28,525 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 02:37:28,526 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 02:37:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:28,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:28,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:28,767 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 02:37:28,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:28,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:28,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465278243] [2023-12-22 02:37:28,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465278243] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:28,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:28,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:28,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193821609] [2023-12-22 02:37:28,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:28,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:28,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:28,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:28,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:28,770 INFO L87 Difference]: Start difference. First operand 3355 states and 4373 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:29,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:29,788 INFO L93 Difference]: Finished difference Result 5157 states and 7012 transitions. [2023-12-22 02:37:29,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:29,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:29,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:29,793 INFO L225 Difference]: With dead ends: 5157 [2023-12-22 02:37:29,793 INFO L226 Difference]: Without dead ends: 3533 [2023-12-22 02:37:29,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:29,797 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 1007 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:29,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 1027 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:37:29,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3533 states. [2023-12-22 02:37:30,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3533 to 3533. [2023-12-22 02:37:30,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3533 states, 3074 states have (on average 1.3292127521145087) internal successors, (4086), 3102 states have internal predecessors, (4086), 230 states have call successors, (230), 168 states have call predecessors, (230), 227 states have return successors, (288), 263 states have call predecessors, (288), 227 states have call successors, (288) [2023-12-22 02:37:30,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3533 states to 3533 states and 4604 transitions. [2023-12-22 02:37:30,156 INFO L78 Accepts]: Start accepts. Automaton has 3533 states and 4604 transitions. Word has length 172 [2023-12-22 02:37:30,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:30,156 INFO L495 AbstractCegarLoop]: Abstraction has 3533 states and 4604 transitions. [2023-12-22 02:37:30,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:30,156 INFO L276 IsEmpty]: Start isEmpty. Operand 3533 states and 4604 transitions. [2023-12-22 02:37:30,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:30,157 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:30,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:30,163 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 02:37:30,362 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 02:37:30,363 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:30,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:30,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1553297551, now seen corresponding path program 1 times [2023-12-22 02:37:30,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:30,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1845278076] [2023-12-22 02:37:30,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:30,364 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 02:37:30,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:30,365 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 02:37:30,366 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 02:37:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:30,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:30,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:30,581 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 02:37:30,581 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:30,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:30,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1845278076] [2023-12-22 02:37:30,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1845278076] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:30,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:30,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:30,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426142770] [2023-12-22 02:37:30,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:30,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:30,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:30,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:30,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:30,582 INFO L87 Difference]: Start difference. First operand 3533 states and 4604 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:31,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:31,402 INFO L93 Difference]: Finished difference Result 5513 states and 7474 transitions. [2023-12-22 02:37:31,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:31,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:31,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:31,408 INFO L225 Difference]: With dead ends: 5513 [2023-12-22 02:37:31,408 INFO L226 Difference]: Without dead ends: 3711 [2023-12-22 02:37:31,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:31,410 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 1000 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:31,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 1020 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:37:31,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3711 states. [2023-12-22 02:37:31,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3711 to 3711. [2023-12-22 02:37:31,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3711 states, 3246 states have (on average 1.3274799753542823) internal successors, (4309), 3274 states have internal predecessors, (4309), 232 states have call successors, (232), 172 states have call predecessors, (232), 231 states have return successors, (290), 265 states have call predecessors, (290), 229 states have call successors, (290) [2023-12-22 02:37:31,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3711 states to 3711 states and 4831 transitions. [2023-12-22 02:37:31,786 INFO L78 Accepts]: Start accepts. Automaton has 3711 states and 4831 transitions. Word has length 172 [2023-12-22 02:37:31,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:31,787 INFO L495 AbstractCegarLoop]: Abstraction has 3711 states and 4831 transitions. [2023-12-22 02:37:31,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:31,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3711 states and 4831 transitions. [2023-12-22 02:37:31,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:31,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:31,788 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:31,796 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 02:37:31,994 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 02:37:31,994 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:31,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:31,995 INFO L85 PathProgramCache]: Analyzing trace with hash 324056910, now seen corresponding path program 1 times [2023-12-22 02:37:31,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:31,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430573429] [2023-12-22 02:37:31,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:31,995 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 02:37:31,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:31,996 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 02:37:32,003 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 02:37:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:32,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:32,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:32,217 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 02:37:32,217 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:32,217 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:32,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430573429] [2023-12-22 02:37:32,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [430573429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:32,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:32,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:32,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059143602] [2023-12-22 02:37:32,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:32,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:32,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:32,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:32,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:32,219 INFO L87 Difference]: Start difference. First operand 3711 states and 4831 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:33,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:33,188 INFO L93 Difference]: Finished difference Result 5869 states and 7928 transitions. [2023-12-22 02:37:33,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:33,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:33,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:33,194 INFO L225 Difference]: With dead ends: 5869 [2023-12-22 02:37:33,194 INFO L226 Difference]: Without dead ends: 3889 [2023-12-22 02:37:33,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:33,197 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 992 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:33,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 1013 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:37:33,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3889 states. [2023-12-22 02:37:33,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3889 to 3889. [2023-12-22 02:37:33,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3889 states, 3418 states have (on average 1.3247513165593914) internal successors, (4528), 3446 states have internal predecessors, (4528), 234 states have call successors, (234), 176 states have call predecessors, (234), 235 states have return successors, (292), 267 states have call predecessors, (292), 231 states have call successors, (292) [2023-12-22 02:37:33,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3889 states to 3889 states and 5054 transitions. [2023-12-22 02:37:33,595 INFO L78 Accepts]: Start accepts. Automaton has 3889 states and 5054 transitions. Word has length 172 [2023-12-22 02:37:33,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:33,596 INFO L495 AbstractCegarLoop]: Abstraction has 3889 states and 5054 transitions. [2023-12-22 02:37:33,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:33,596 INFO L276 IsEmpty]: Start isEmpty. Operand 3889 states and 5054 transitions. [2023-12-22 02:37:33,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:33,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:33,597 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:33,603 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 (41)] Ended with exit code 0 [2023-12-22 02:37:33,800 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 02:37:33,800 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:33,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:33,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1671880919, now seen corresponding path program 1 times [2023-12-22 02:37:33,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:33,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648196909] [2023-12-22 02:37:33,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:33,802 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 02:37:33,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:33,803 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 02:37:33,805 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 02:37:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:33,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:33,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:34,030 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 02:37:34,031 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:34,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:34,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648196909] [2023-12-22 02:37:34,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648196909] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:34,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:34,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:34,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721510400] [2023-12-22 02:37:34,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:34,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:34,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:34,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:34,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:34,032 INFO L87 Difference]: Start difference. First operand 3889 states and 5054 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:35,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:35,035 INFO L93 Difference]: Finished difference Result 6225 states and 8374 transitions. [2023-12-22 02:37:35,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:35,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:35,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:35,041 INFO L225 Difference]: With dead ends: 6225 [2023-12-22 02:37:35,041 INFO L226 Difference]: Without dead ends: 4067 [2023-12-22 02:37:35,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:35,044 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 985 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:35,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 1006 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:37:35,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4067 states. [2023-12-22 02:37:35,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4067 to 4067. [2023-12-22 02:37:35,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4067 states, 3590 states have (on average 1.3211699164345403) internal successors, (4743), 3618 states have internal predecessors, (4743), 236 states have call successors, (236), 180 states have call predecessors, (236), 239 states have return successors, (294), 269 states have call predecessors, (294), 233 states have call successors, (294) [2023-12-22 02:37:35,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 5273 transitions. [2023-12-22 02:37:35,434 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 5273 transitions. Word has length 172 [2023-12-22 02:37:35,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:35,434 INFO L495 AbstractCegarLoop]: Abstraction has 4067 states and 5273 transitions. [2023-12-22 02:37:35,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:35,435 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 5273 transitions. [2023-12-22 02:37:35,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:35,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:35,436 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:35,441 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 (42)] Ended with exit code 0 [2023-12-22 02:37:35,641 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 02:37:35,642 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:35,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:35,642 INFO L85 PathProgramCache]: Analyzing trace with hash 383142445, now seen corresponding path program 1 times [2023-12-22 02:37:35,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:35,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863660996] [2023-12-22 02:37:35,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:35,643 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 02:37:35,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:35,652 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 02:37:35,653 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 02:37:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:35,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:35,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:35,874 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 02:37:35,874 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:35,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:35,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863660996] [2023-12-22 02:37:35,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863660996] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:35,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:35,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:35,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502812830] [2023-12-22 02:37:35,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:35,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:35,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:35,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:35,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:35,893 INFO L87 Difference]: Start difference. First operand 4067 states and 5273 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:36,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:36,874 INFO L93 Difference]: Finished difference Result 6581 states and 8812 transitions. [2023-12-22 02:37:36,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:36,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:36,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:36,881 INFO L225 Difference]: With dead ends: 6581 [2023-12-22 02:37:36,882 INFO L226 Difference]: Without dead ends: 4245 [2023-12-22 02:37:36,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:36,885 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 978 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:36,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 999 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:37:36,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4245 states. [2023-12-22 02:37:37,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4245 to 4245. [2023-12-22 02:37:37,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4245 states, 3762 states have (on average 1.3168527379053694) internal successors, (4954), 3790 states have internal predecessors, (4954), 238 states have call successors, (238), 184 states have call predecessors, (238), 243 states have return successors, (296), 271 states have call predecessors, (296), 235 states have call successors, (296) [2023-12-22 02:37:37,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4245 states to 4245 states and 5488 transitions. [2023-12-22 02:37:37,326 INFO L78 Accepts]: Start accepts. Automaton has 4245 states and 5488 transitions. Word has length 172 [2023-12-22 02:37:37,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:37,326 INFO L495 AbstractCegarLoop]: Abstraction has 4245 states and 5488 transitions. [2023-12-22 02:37:37,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:37,327 INFO L276 IsEmpty]: Start isEmpty. Operand 4245 states and 5488 transitions. [2023-12-22 02:37:37,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:37,328 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:37,328 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:37,337 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 02:37:37,534 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 02:37:37,534 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:37,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:37,535 INFO L85 PathProgramCache]: Analyzing trace with hash 2010151880, now seen corresponding path program 1 times [2023-12-22 02:37:37,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:37,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047377263] [2023-12-22 02:37:37,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:37,535 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 02:37:37,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:37,537 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 02:37:37,540 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 02:37:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:37,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:37,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:37,773 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 02:37:37,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:37,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:37,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047377263] [2023-12-22 02:37:37,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047377263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:37,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:37,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:37,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314338608] [2023-12-22 02:37:37,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:37,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:37,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:37,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:37,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:37,778 INFO L87 Difference]: Start difference. First operand 4245 states and 5488 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:38,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:38,810 INFO L93 Difference]: Finished difference Result 6937 states and 9242 transitions. [2023-12-22 02:37:38,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:38,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:38,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:38,816 INFO L225 Difference]: With dead ends: 6937 [2023-12-22 02:37:38,816 INFO L226 Difference]: Without dead ends: 4423 [2023-12-22 02:37:38,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:38,820 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 971 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:38,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 992 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:37:38,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4423 states. [2023-12-22 02:37:39,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4423 to 4423. [2023-12-22 02:37:39,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4423 states, 3934 states have (on average 1.3118962887646162) internal successors, (5161), 3962 states have internal predecessors, (5161), 240 states have call successors, (240), 188 states have call predecessors, (240), 247 states have return successors, (298), 273 states have call predecessors, (298), 237 states have call successors, (298) [2023-12-22 02:37:39,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4423 states to 4423 states and 5699 transitions. [2023-12-22 02:37:39,331 INFO L78 Accepts]: Start accepts. Automaton has 4423 states and 5699 transitions. Word has length 172 [2023-12-22 02:37:39,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:39,331 INFO L495 AbstractCegarLoop]: Abstraction has 4423 states and 5699 transitions. [2023-12-22 02:37:39,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:39,332 INFO L276 IsEmpty]: Start isEmpty. Operand 4423 states and 5699 transitions. [2023-12-22 02:37:39,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:39,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:39,333 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:39,341 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 (44)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:39,539 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 02:37:39,539 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:39,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:39,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1991781555, now seen corresponding path program 1 times [2023-12-22 02:37:39,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:39,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555621845] [2023-12-22 02:37:39,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:39,540 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 02:37:39,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:39,542 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 02:37:39,543 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 02:37:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:39,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:39,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:39,757 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 02:37:39,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:39,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:39,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555621845] [2023-12-22 02:37:39,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555621845] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:39,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:39,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:39,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817415371] [2023-12-22 02:37:39,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:39,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:39,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:39,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:39,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:39,759 INFO L87 Difference]: Start difference. First operand 4423 states and 5699 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:40,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:40,865 INFO L93 Difference]: Finished difference Result 7293 states and 9664 transitions. [2023-12-22 02:37:40,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:40,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:40,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:40,873 INFO L225 Difference]: With dead ends: 7293 [2023-12-22 02:37:40,873 INFO L226 Difference]: Without dead ends: 4601 [2023-12-22 02:37:40,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:40,880 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 964 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:40,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 985 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:37:40,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4601 states. [2023-12-22 02:37:41,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4601 to 4601. [2023-12-22 02:37:41,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4601 states, 4106 states have (on average 1.3063809059912324) internal successors, (5364), 4134 states have internal predecessors, (5364), 242 states have call successors, (242), 192 states have call predecessors, (242), 251 states have return successors, (300), 275 states have call predecessors, (300), 239 states have call successors, (300) [2023-12-22 02:37:41,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4601 states to 4601 states and 5906 transitions. [2023-12-22 02:37:41,397 INFO L78 Accepts]: Start accepts. Automaton has 4601 states and 5906 transitions. Word has length 172 [2023-12-22 02:37:41,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:41,398 INFO L495 AbstractCegarLoop]: Abstraction has 4601 states and 5906 transitions. [2023-12-22 02:37:41,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:41,398 INFO L276 IsEmpty]: Start isEmpty. Operand 4601 states and 5906 transitions. [2023-12-22 02:37:41,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:41,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:41,399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:41,405 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 (45)] Ended with exit code 0 [2023-12-22 02:37:41,605 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 02:37:41,605 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:41,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:41,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1862392119, now seen corresponding path program 1 times [2023-12-22 02:37:41,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:41,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372288012] [2023-12-22 02:37:41,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:41,606 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 02:37:41,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:41,608 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 02:37:41,609 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 02:37:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:41,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:41,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:41,819 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 02:37:41,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:41,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:41,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372288012] [2023-12-22 02:37:41,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372288012] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:41,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:41,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:41,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813140400] [2023-12-22 02:37:41,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:41,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:37:41,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:41,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:37:41,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:37:41,833 INFO L87 Difference]: Start difference. First operand 4601 states and 5906 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:42,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:42,888 INFO L93 Difference]: Finished difference Result 7649 states and 10078 transitions. [2023-12-22 02:37:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:37:42,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:42,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:42,895 INFO L225 Difference]: With dead ends: 7649 [2023-12-22 02:37:42,895 INFO L226 Difference]: Without dead ends: 4779 [2023-12-22 02:37:42,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:37:42,897 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 957 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:42,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 978 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:37:42,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4779 states. [2023-12-22 02:37:43,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4779 to 4779. [2023-12-22 02:37:43,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4779 states, 4278 states have (on average 1.3003740065451146) internal successors, (5563), 4306 states have internal predecessors, (5563), 244 states have call successors, (244), 196 states have call predecessors, (244), 255 states have return successors, (302), 277 states have call predecessors, (302), 241 states have call successors, (302) [2023-12-22 02:37:43,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4779 states to 4779 states and 6109 transitions. [2023-12-22 02:37:43,351 INFO L78 Accepts]: Start accepts. Automaton has 4779 states and 6109 transitions. Word has length 172 [2023-12-22 02:37:43,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:43,351 INFO L495 AbstractCegarLoop]: Abstraction has 4779 states and 6109 transitions. [2023-12-22 02:37:43,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:43,351 INFO L276 IsEmpty]: Start isEmpty. Operand 4779 states and 6109 transitions. [2023-12-22 02:37:43,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:43,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:43,353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:43,358 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 02:37:43,558 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 02:37:43,558 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:43,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:43,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1331686542, now seen corresponding path program 1 times [2023-12-22 02:37:43,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:43,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751201732] [2023-12-22 02:37:43,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:43,559 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 02:37:43,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:43,561 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 02:37:43,563 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 02:37:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:43,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:43,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:43,726 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 02:37:43,726 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:43,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:43,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751201732] [2023-12-22 02:37:43,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751201732] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:43,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:43,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:43,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051063732] [2023-12-22 02:37:43,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:43,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:43,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:43,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:43,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:43,727 INFO L87 Difference]: Start difference. First operand 4779 states and 6109 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:44,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:44,302 INFO L93 Difference]: Finished difference Result 7990 states and 10463 transitions. [2023-12-22 02:37:44,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:44,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:44,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:44,310 INFO L225 Difference]: With dead ends: 7990 [2023-12-22 02:37:44,310 INFO L226 Difference]: Without dead ends: 4943 [2023-12-22 02:37:44,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:37:44,323 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 119 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:44,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1798 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:44,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4943 states. [2023-12-22 02:37:44,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4943 to 4783. [2023-12-22 02:37:44,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4783 states, 4282 states have (on average 1.294021485287249) internal successors, (5541), 4310 states have internal predecessors, (5541), 244 states have call successors, (244), 196 states have call predecessors, (244), 255 states have return successors, (302), 277 states have call predecessors, (302), 241 states have call successors, (302) [2023-12-22 02:37:44,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4783 states to 4783 states and 6087 transitions. [2023-12-22 02:37:44,784 INFO L78 Accepts]: Start accepts. Automaton has 4783 states and 6087 transitions. Word has length 172 [2023-12-22 02:37:44,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:44,784 INFO L495 AbstractCegarLoop]: Abstraction has 4783 states and 6087 transitions. [2023-12-22 02:37:44,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:44,784 INFO L276 IsEmpty]: Start isEmpty. Operand 4783 states and 6087 transitions. [2023-12-22 02:37:44,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:44,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:44,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:44,790 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 (47)] Ended with exit code 0 [2023-12-22 02:37:44,993 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 02:37:44,993 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:44,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:44,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1034348528, now seen corresponding path program 1 times [2023-12-22 02:37:44,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:44,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342544862] [2023-12-22 02:37:44,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:44,994 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 02:37:44,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:44,995 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 02:37:44,996 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 02:37:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:45,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:45,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:45,153 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 02:37:45,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:45,153 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:45,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342544862] [2023-12-22 02:37:45,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342544862] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:45,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:45,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:45,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417264396] [2023-12-22 02:37:45,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:45,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:45,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:45,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:45,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:45,155 INFO L87 Difference]: Start difference. First operand 4783 states and 6087 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:45,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:45,689 INFO L93 Difference]: Finished difference Result 7986 states and 10403 transitions. [2023-12-22 02:37:45,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:45,690 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:45,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:45,733 INFO L225 Difference]: With dead ends: 7986 [2023-12-22 02:37:45,734 INFO L226 Difference]: Without dead ends: 4935 [2023-12-22 02:37:45,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:37:45,757 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 110 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:45,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1802 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:45,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4935 states. [2023-12-22 02:37:46,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4935 to 4787. [2023-12-22 02:37:46,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4787 states, 4286 states have (on average 1.2876808212785815) internal successors, (5519), 4314 states have internal predecessors, (5519), 244 states have call successors, (244), 196 states have call predecessors, (244), 255 states have return successors, (302), 277 states have call predecessors, (302), 241 states have call successors, (302) [2023-12-22 02:37:46,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4787 states to 4787 states and 6065 transitions. [2023-12-22 02:37:46,292 INFO L78 Accepts]: Start accepts. Automaton has 4787 states and 6065 transitions. Word has length 172 [2023-12-22 02:37:46,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:46,292 INFO L495 AbstractCegarLoop]: Abstraction has 4787 states and 6065 transitions. [2023-12-22 02:37:46,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:46,293 INFO L276 IsEmpty]: Start isEmpty. Operand 4787 states and 6065 transitions. [2023-12-22 02:37:46,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:46,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:46,294 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:46,300 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 (48)] Ended with exit code 0 [2023-12-22 02:37:46,498 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 02:37:46,498 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:46,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:46,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1129268046, now seen corresponding path program 1 times [2023-12-22 02:37:46,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:46,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419639353] [2023-12-22 02:37:46,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:46,499 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 02:37:46,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:46,501 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 02:37:46,502 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 02:37:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:46,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:46,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:46,656 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 02:37:46,657 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:46,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:46,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419639353] [2023-12-22 02:37:46,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [419639353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:46,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:46,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:46,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595980774] [2023-12-22 02:37:46,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:46,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:46,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:46,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:46,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:46,659 INFO L87 Difference]: Start difference. First operand 4787 states and 6065 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:47,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:47,204 INFO L93 Difference]: Finished difference Result 7982 states and 10343 transitions. [2023-12-22 02:37:47,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:47,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:47,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:47,211 INFO L225 Difference]: With dead ends: 7982 [2023-12-22 02:37:47,211 INFO L226 Difference]: Without dead ends: 4927 [2023-12-22 02:37:47,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:37:47,215 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 101 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:47,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1800 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:47,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4927 states. [2023-12-22 02:37:47,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4927 to 4791. [2023-12-22 02:37:47,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4791 states, 4290 states have (on average 1.2813519813519814) internal successors, (5497), 4318 states have internal predecessors, (5497), 244 states have call successors, (244), 196 states have call predecessors, (244), 255 states have return successors, (302), 277 states have call predecessors, (302), 241 states have call successors, (302) [2023-12-22 02:37:47,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4791 states to 4791 states and 6043 transitions. [2023-12-22 02:37:47,757 INFO L78 Accepts]: Start accepts. Automaton has 4791 states and 6043 transitions. Word has length 172 [2023-12-22 02:37:47,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:47,759 INFO L495 AbstractCegarLoop]: Abstraction has 4791 states and 6043 transitions. [2023-12-22 02:37:47,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:47,759 INFO L276 IsEmpty]: Start isEmpty. Operand 4791 states and 6043 transitions. [2023-12-22 02:37:47,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:47,760 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:47,760 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:47,770 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 (49)] Ended with exit code 0 [2023-12-22 02:37:47,970 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 02:37:47,971 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:47,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:47,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1247709520, now seen corresponding path program 1 times [2023-12-22 02:37:47,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:47,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789874495] [2023-12-22 02:37:47,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:47,972 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 02:37:47,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:47,974 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 02:37:47,975 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 (50)] Waiting until timeout for monitored process [2023-12-22 02:37:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:48,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:48,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:48,136 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 02:37:48,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:48,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:48,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1789874495] [2023-12-22 02:37:48,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1789874495] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:48,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:48,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:48,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581266975] [2023-12-22 02:37:48,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:48,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:48,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:48,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:48,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:48,138 INFO L87 Difference]: Start difference. First operand 4791 states and 6043 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:48,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:48,682 INFO L93 Difference]: Finished difference Result 7978 states and 10283 transitions. [2023-12-22 02:37:48,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:48,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:48,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:48,689 INFO L225 Difference]: With dead ends: 7978 [2023-12-22 02:37:48,689 INFO L226 Difference]: Without dead ends: 4919 [2023-12-22 02:37:48,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:37:48,698 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 92 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:48,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1801 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:48,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4919 states. [2023-12-22 02:37:49,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4919 to 4795. [2023-12-22 02:37:49,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4795 states, 4294 states have (on average 1.2750349324639032) internal successors, (5475), 4322 states have internal predecessors, (5475), 244 states have call successors, (244), 196 states have call predecessors, (244), 255 states have return successors, (302), 277 states have call predecessors, (302), 241 states have call successors, (302) [2023-12-22 02:37:49,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4795 states to 4795 states and 6021 transitions. [2023-12-22 02:37:49,160 INFO L78 Accepts]: Start accepts. Automaton has 4795 states and 6021 transitions. Word has length 172 [2023-12-22 02:37:49,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:49,161 INFO L495 AbstractCegarLoop]: Abstraction has 4795 states and 6021 transitions. [2023-12-22 02:37:49,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:49,161 INFO L276 IsEmpty]: Start isEmpty. Operand 4795 states and 6021 transitions. [2023-12-22 02:37:49,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:49,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:49,162 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:49,167 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 (50)] Ended with exit code 0 [2023-12-22 02:37:49,367 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 02:37:49,368 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:49,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:49,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1149761010, now seen corresponding path program 1 times [2023-12-22 02:37:49,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:49,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097172093] [2023-12-22 02:37:49,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:49,369 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 02:37:49,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:49,370 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 02:37:49,384 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 02:37:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:49,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:49,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:49,518 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 02:37:49,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:49,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:49,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097172093] [2023-12-22 02:37:49,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097172093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:49,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:49,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:49,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866033292] [2023-12-22 02:37:49,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:49,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:49,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:49,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:49,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:49,519 INFO L87 Difference]: Start difference. First operand 4795 states and 6021 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:50,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:50,064 INFO L93 Difference]: Finished difference Result 7974 states and 10223 transitions. [2023-12-22 02:37:50,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:50,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:50,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:50,071 INFO L225 Difference]: With dead ends: 7974 [2023-12-22 02:37:50,071 INFO L226 Difference]: Without dead ends: 4911 [2023-12-22 02:37:50,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:37:50,073 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 83 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:50,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1802 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:50,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4911 states. [2023-12-22 02:37:50,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4911 to 4799. [2023-12-22 02:37:50,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4799 states, 4298 states have (on average 1.268729641693811) internal successors, (5453), 4326 states have internal predecessors, (5453), 244 states have call successors, (244), 196 states have call predecessors, (244), 255 states have return successors, (302), 277 states have call predecessors, (302), 241 states have call successors, (302) [2023-12-22 02:37:50,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4799 states to 4799 states and 5999 transitions. [2023-12-22 02:37:50,496 INFO L78 Accepts]: Start accepts. Automaton has 4799 states and 5999 transitions. Word has length 172 [2023-12-22 02:37:50,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:50,496 INFO L495 AbstractCegarLoop]: Abstraction has 4799 states and 5999 transitions. [2023-12-22 02:37:50,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:50,496 INFO L276 IsEmpty]: Start isEmpty. Operand 4799 states and 5999 transitions. [2023-12-22 02:37:50,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:50,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:50,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:50,503 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 (51)] Ended with exit code 0 [2023-12-22 02:37:50,702 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 02:37:50,703 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:50,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:50,703 INFO L85 PathProgramCache]: Analyzing trace with hash 201624208, now seen corresponding path program 1 times [2023-12-22 02:37:50,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:50,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964209020] [2023-12-22 02:37:50,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:50,704 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 02:37:50,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:50,705 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 02:37:50,712 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 02:37:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:50,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:50,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:50,857 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 02:37:50,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:50,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:50,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964209020] [2023-12-22 02:37:50,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964209020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:50,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:50,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:50,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532833131] [2023-12-22 02:37:50,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:50,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:50,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:50,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:50,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:50,859 INFO L87 Difference]: Start difference. First operand 4799 states and 5999 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:51,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:51,448 INFO L93 Difference]: Finished difference Result 7958 states and 10147 transitions. [2023-12-22 02:37:51,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:51,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:51,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:51,455 INFO L225 Difference]: With dead ends: 7958 [2023-12-22 02:37:51,455 INFO L226 Difference]: Without dead ends: 4891 [2023-12-22 02:37:51,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:37:51,459 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 65 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:51,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1804 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:51,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4891 states. [2023-12-22 02:37:51,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4891 to 4803. [2023-12-22 02:37:51,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4803 states, 4302 states have (on average 1.2624360762436075) internal successors, (5431), 4330 states have internal predecessors, (5431), 244 states have call successors, (244), 196 states have call predecessors, (244), 255 states have return successors, (302), 277 states have call predecessors, (302), 241 states have call successors, (302) [2023-12-22 02:37:51,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4803 states to 4803 states and 5977 transitions. [2023-12-22 02:37:51,911 INFO L78 Accepts]: Start accepts. Automaton has 4803 states and 5977 transitions. Word has length 172 [2023-12-22 02:37:51,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:51,912 INFO L495 AbstractCegarLoop]: Abstraction has 4803 states and 5977 transitions. [2023-12-22 02:37:51,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:51,912 INFO L276 IsEmpty]: Start isEmpty. Operand 4803 states and 5977 transitions. [2023-12-22 02:37:51,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:51,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:51,913 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:51,922 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 02:37:52,119 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 02:37:52,120 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:52,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:52,120 INFO L85 PathProgramCache]: Analyzing trace with hash 2078107026, now seen corresponding path program 1 times [2023-12-22 02:37:52,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:52,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072122160] [2023-12-22 02:37:52,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:52,121 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 02:37:52,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:52,122 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 02:37:52,123 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 02:37:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:52,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:52,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:52,269 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 02:37:52,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:52,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:52,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072122160] [2023-12-22 02:37:52,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2072122160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:52,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:52,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:52,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253316670] [2023-12-22 02:37:52,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:52,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:52,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:52,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:52,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:52,270 INFO L87 Difference]: Start difference. First operand 4803 states and 5977 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:52,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:52,821 INFO L93 Difference]: Finished difference Result 8994 states and 11479 transitions. [2023-12-22 02:37:52,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:52,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:52,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:52,830 INFO L225 Difference]: With dead ends: 8994 [2023-12-22 02:37:52,830 INFO L226 Difference]: Without dead ends: 5923 [2023-12-22 02:37:52,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:37:52,833 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 56 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1810 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:52,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1810 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:52,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5923 states. [2023-12-22 02:37:53,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5923 to 4859. [2023-12-22 02:37:53,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4859 states, 4358 states have (on average 1.2590637907296924) internal successors, (5487), 4386 states have internal predecessors, (5487), 244 states have call successors, (244), 196 states have call predecessors, (244), 255 states have return successors, (302), 277 states have call predecessors, (302), 241 states have call successors, (302) [2023-12-22 02:37:53,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4859 states to 4859 states and 6033 transitions. [2023-12-22 02:37:53,301 INFO L78 Accepts]: Start accepts. Automaton has 4859 states and 6033 transitions. Word has length 172 [2023-12-22 02:37:53,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:53,302 INFO L495 AbstractCegarLoop]: Abstraction has 4859 states and 6033 transitions. [2023-12-22 02:37:53,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:53,302 INFO L276 IsEmpty]: Start isEmpty. Operand 4859 states and 6033 transitions. [2023-12-22 02:37:53,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:53,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:53,304 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:53,311 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 02:37:53,509 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 02:37:53,510 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:53,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:53,510 INFO L85 PathProgramCache]: Analyzing trace with hash 935604560, now seen corresponding path program 1 times [2023-12-22 02:37:53,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:53,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67424857] [2023-12-22 02:37:53,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:53,511 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 02:37:53,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:53,513 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 02:37:53,514 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 (54)] Waiting until timeout for monitored process [2023-12-22 02:37:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:53,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:53,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:53,658 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 02:37:53,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:53,659 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:53,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67424857] [2023-12-22 02:37:53,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67424857] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:53,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:53,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:53,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259162175] [2023-12-22 02:37:53,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:53,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:53,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:53,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:53,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:53,660 INFO L87 Difference]: Start difference. First operand 4859 states and 6033 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:54,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:54,197 INFO L93 Difference]: Finished difference Result 8054 states and 10181 transitions. [2023-12-22 02:37:54,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:54,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:54,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:54,205 INFO L225 Difference]: With dead ends: 8054 [2023-12-22 02:37:54,205 INFO L226 Difference]: Without dead ends: 4927 [2023-12-22 02:37:54,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:37:54,208 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 47 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:54,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1805 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:54,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4927 states. [2023-12-22 02:37:54,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4927 to 4863. [2023-12-22 02:37:54,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4863 states, 4362 states have (on average 1.2528656579550665) internal successors, (5465), 4390 states have internal predecessors, (5465), 244 states have call successors, (244), 196 states have call predecessors, (244), 255 states have return successors, (302), 277 states have call predecessors, (302), 241 states have call successors, (302) [2023-12-22 02:37:54,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4863 states to 4863 states and 6011 transitions. [2023-12-22 02:37:54,673 INFO L78 Accepts]: Start accepts. Automaton has 4863 states and 6011 transitions. Word has length 172 [2023-12-22 02:37:54,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:54,674 INFO L495 AbstractCegarLoop]: Abstraction has 4863 states and 6011 transitions. [2023-12-22 02:37:54,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:54,674 INFO L276 IsEmpty]: Start isEmpty. Operand 4863 states and 6011 transitions. [2023-12-22 02:37:54,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:54,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:54,676 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:54,682 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 (54)] Ended with exit code 0 [2023-12-22 02:37:54,877 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 02:37:54,878 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:54,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:54,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1625258286, now seen corresponding path program 1 times [2023-12-22 02:37:54,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:54,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073569747] [2023-12-22 02:37:54,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:54,879 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 02:37:54,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:54,880 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 02:37:54,914 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 02:37:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:55,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:55,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:55,025 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 02:37:55,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:55,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:55,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073569747] [2023-12-22 02:37:55,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1073569747] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:55,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:55,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:55,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241463102] [2023-12-22 02:37:55,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:55,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:55,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:55,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:55,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:55,026 INFO L87 Difference]: Start difference. First operand 4863 states and 6011 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:55,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:55,581 INFO L93 Difference]: Finished difference Result 8050 states and 10121 transitions. [2023-12-22 02:37:55,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:55,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:55,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:55,588 INFO L225 Difference]: With dead ends: 8050 [2023-12-22 02:37:55,588 INFO L226 Difference]: Without dead ends: 4919 [2023-12-22 02:37:55,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:37:55,591 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 38 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:55,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1806 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:55,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4919 states. [2023-12-22 02:37:56,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4919 to 4867. [2023-12-22 02:37:56,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4867 states, 4366 states have (on average 1.2466788822721027) internal successors, (5443), 4394 states have internal predecessors, (5443), 244 states have call successors, (244), 196 states have call predecessors, (244), 255 states have return successors, (302), 277 states have call predecessors, (302), 241 states have call successors, (302) [2023-12-22 02:37:56,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4867 states to 4867 states and 5989 transitions. [2023-12-22 02:37:56,030 INFO L78 Accepts]: Start accepts. Automaton has 4867 states and 5989 transitions. Word has length 172 [2023-12-22 02:37:56,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:56,031 INFO L495 AbstractCegarLoop]: Abstraction has 4867 states and 5989 transitions. [2023-12-22 02:37:56,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:56,031 INFO L276 IsEmpty]: Start isEmpty. Operand 4867 states and 5989 transitions. [2023-12-22 02:37:56,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:56,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:56,032 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:56,040 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 02:37:56,238 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 02:37:56,238 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:56,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:56,238 INFO L85 PathProgramCache]: Analyzing trace with hash 283199504, now seen corresponding path program 1 times [2023-12-22 02:37:56,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:56,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1780228892] [2023-12-22 02:37:56,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:56,239 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 02:37:56,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:56,240 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 02:37:56,241 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 02:37:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:56,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:56,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:56,388 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 02:37:56,388 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:56,388 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:56,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1780228892] [2023-12-22 02:37:56,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1780228892] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:56,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:56,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:56,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643366390] [2023-12-22 02:37:56,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:56,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:56,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:56,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:56,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:56,397 INFO L87 Difference]: Start difference. First operand 4867 states and 5989 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:56,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:56,917 INFO L93 Difference]: Finished difference Result 8046 states and 10061 transitions. [2023-12-22 02:37:56,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:56,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:56,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:56,924 INFO L225 Difference]: With dead ends: 8046 [2023-12-22 02:37:56,925 INFO L226 Difference]: Without dead ends: 4911 [2023-12-22 02:37:56,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:37:56,929 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 29 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:56,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1807 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:56,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4911 states. [2023-12-22 02:37:57,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4911 to 4871. [2023-12-22 02:37:57,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4871 states, 4370 states have (on average 1.2405034324942792) internal successors, (5421), 4398 states have internal predecessors, (5421), 244 states have call successors, (244), 196 states have call predecessors, (244), 255 states have return successors, (302), 277 states have call predecessors, (302), 241 states have call successors, (302) [2023-12-22 02:37:57,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4871 states to 4871 states and 5967 transitions. [2023-12-22 02:37:57,386 INFO L78 Accepts]: Start accepts. Automaton has 4871 states and 5967 transitions. Word has length 172 [2023-12-22 02:37:57,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:57,386 INFO L495 AbstractCegarLoop]: Abstraction has 4871 states and 5967 transitions. [2023-12-22 02:37:57,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:57,387 INFO L276 IsEmpty]: Start isEmpty. Operand 4871 states and 5967 transitions. [2023-12-22 02:37:57,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:57,388 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:57,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:57,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2023-12-22 02:37:57,593 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 02:37:57,593 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:57,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:57,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1402980334, now seen corresponding path program 1 times [2023-12-22 02:37:57,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:57,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [820005946] [2023-12-22 02:37:57,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:57,595 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 02:37:57,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:57,596 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 02:37:57,597 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 02:37:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:57,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:57,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:57,764 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 02:37:57,764 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:57,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:57,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [820005946] [2023-12-22 02:37:57,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [820005946] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:57,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:57,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:57,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172757020] [2023-12-22 02:37:57,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:57,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:57,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:57,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:57,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:57,767 INFO L87 Difference]: Start difference. First operand 4871 states and 5967 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:58,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:58,296 INFO L93 Difference]: Finished difference Result 8042 states and 10001 transitions. [2023-12-22 02:37:58,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:58,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:58,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:58,304 INFO L225 Difference]: With dead ends: 8042 [2023-12-22 02:37:58,305 INFO L226 Difference]: Without dead ends: 4903 [2023-12-22 02:37:58,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:37:58,308 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 20 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:58,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1808 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:58,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4903 states. [2023-12-22 02:37:58,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4903 to 4875. [2023-12-22 02:37:58,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4875 states, 4374 states have (on average 1.2343392775491542) internal successors, (5399), 4402 states have internal predecessors, (5399), 244 states have call successors, (244), 196 states have call predecessors, (244), 255 states have return successors, (302), 277 states have call predecessors, (302), 241 states have call successors, (302) [2023-12-22 02:37:58,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4875 states to 4875 states and 5945 transitions. [2023-12-22 02:37:58,772 INFO L78 Accepts]: Start accepts. Automaton has 4875 states and 5945 transitions. Word has length 172 [2023-12-22 02:37:58,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:37:58,772 INFO L495 AbstractCegarLoop]: Abstraction has 4875 states and 5945 transitions. [2023-12-22 02:37:58,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:58,773 INFO L276 IsEmpty]: Start isEmpty. Operand 4875 states and 5945 transitions. [2023-12-22 02:37:58,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:37:58,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:37:58,774 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:37:58,814 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 (57)] Ended with exit code 0 [2023-12-22 02:37:58,977 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 02:37:58,977 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:37:58,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:37:58,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1201156400, now seen corresponding path program 1 times [2023-12-22 02:37:58,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:37:58,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [472931070] [2023-12-22 02:37:58,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:37:58,978 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 02:37:58,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:37:58,979 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 02:37:58,981 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 02:37:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:37:59,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:37:59,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:37:59,120 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 02:37:59,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:37:59,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:37:59,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [472931070] [2023-12-22 02:37:59,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [472931070] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:37:59,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:37:59,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:37:59,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837783446] [2023-12-22 02:37:59,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:37:59,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:37:59,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:37:59,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:37:59,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:37:59,121 INFO L87 Difference]: Start difference. First operand 4875 states and 5945 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:37:59,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:37:59,649 INFO L93 Difference]: Finished difference Result 8026 states and 9925 transitions. [2023-12-22 02:37:59,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:37:59,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:37:59,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:37:59,658 INFO L225 Difference]: With dead ends: 8026 [2023-12-22 02:37:59,658 INFO L226 Difference]: Without dead ends: 4883 [2023-12-22 02:37:59,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:37:59,662 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 2 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1810 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:37:59,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1810 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:37:59,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4883 states. [2023-12-22 02:38:00,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4883 to 4879. [2023-12-22 02:38:00,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4879 states, 4378 states have (on average 1.2281863864778437) internal successors, (5377), 4406 states have internal predecessors, (5377), 244 states have call successors, (244), 196 states have call predecessors, (244), 255 states have return successors, (302), 277 states have call predecessors, (302), 241 states have call successors, (302) [2023-12-22 02:38:00,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4879 states to 4879 states and 5923 transitions. [2023-12-22 02:38:00,141 INFO L78 Accepts]: Start accepts. Automaton has 4879 states and 5923 transitions. Word has length 172 [2023-12-22 02:38:00,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:00,141 INFO L495 AbstractCegarLoop]: Abstraction has 4879 states and 5923 transitions. [2023-12-22 02:38:00,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:38:00,141 INFO L276 IsEmpty]: Start isEmpty. Operand 4879 states and 5923 transitions. [2023-12-22 02:38:00,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:38:00,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:00,143 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:00,151 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 02:38:00,349 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 02:38:00,349 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:00,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:00,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1682236658, now seen corresponding path program 1 times [2023-12-22 02:38:00,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:00,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1929759981] [2023-12-22 02:38:00,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:00,350 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 02:38:00,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:00,351 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 02:38:00,353 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 02:38:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:00,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:38:00,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:00,652 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 02:38:00,652 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:00,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:00,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1929759981] [2023-12-22 02:38:00,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1929759981] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:00,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:00,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:38:00,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78610046] [2023-12-22 02:38:00,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:00,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:38:00,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:00,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:38:00,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:38:00,654 INFO L87 Difference]: Start difference. First operand 4879 states and 5923 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:38:01,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:01,572 INFO L93 Difference]: Finished difference Result 8027 states and 9820 transitions. [2023-12-22 02:38:01,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:38:01,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:38:01,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:01,581 INFO L225 Difference]: With dead ends: 8027 [2023-12-22 02:38:01,581 INFO L226 Difference]: Without dead ends: 4879 [2023-12-22 02:38:01,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:38:01,583 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 761 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:01,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 970 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:38:01,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4879 states. [2023-12-22 02:38:02,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4879 to 4879. [2023-12-22 02:38:02,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4879 states, 4378 states have (on average 1.2265874828688899) internal successors, (5370), 4406 states have internal predecessors, (5370), 244 states have call successors, (244), 196 states have call predecessors, (244), 255 states have return successors, (302), 277 states have call predecessors, (302), 241 states have call successors, (302) [2023-12-22 02:38:02,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4879 states to 4879 states and 5916 transitions. [2023-12-22 02:38:02,018 INFO L78 Accepts]: Start accepts. Automaton has 4879 states and 5916 transitions. Word has length 172 [2023-12-22 02:38:02,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:02,019 INFO L495 AbstractCegarLoop]: Abstraction has 4879 states and 5916 transitions. [2023-12-22 02:38:02,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:38:02,019 INFO L276 IsEmpty]: Start isEmpty. Operand 4879 states and 5916 transitions. [2023-12-22 02:38:02,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:38:02,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:02,020 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:02,025 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 (59)] Ended with exit code 0 [2023-12-22 02:38:02,228 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 02:38:02,228 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:02,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:02,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1258589936, now seen corresponding path program 1 times [2023-12-22 02:38:02,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:02,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144121040] [2023-12-22 02:38:02,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:02,229 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 02:38:02,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:02,230 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 02:38:02,231 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 02:38:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:02,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:38:02,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:02,533 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 02:38:02,534 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:02,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:02,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144121040] [2023-12-22 02:38:02,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1144121040] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:02,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:02,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:38:02,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678483068] [2023-12-22 02:38:02,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:02,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:38:02,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:02,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:38:02,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:38:02,535 INFO L87 Difference]: Start difference. First operand 4879 states and 5916 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:38:03,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:03,428 INFO L93 Difference]: Finished difference Result 8027 states and 9806 transitions. [2023-12-22 02:38:03,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:38:03,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:38:03,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:03,437 INFO L225 Difference]: With dead ends: 8027 [2023-12-22 02:38:03,437 INFO L226 Difference]: Without dead ends: 4879 [2023-12-22 02:38:03,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:38:03,441 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 748 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:03,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 963 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:38:03,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4879 states. [2023-12-22 02:38:03,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4879 to 4879. [2023-12-22 02:38:03,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4879 states, 4378 states have (on average 1.224988579259936) internal successors, (5363), 4406 states have internal predecessors, (5363), 244 states have call successors, (244), 196 states have call predecessors, (244), 255 states have return successors, (302), 277 states have call predecessors, (302), 241 states have call successors, (302) [2023-12-22 02:38:03,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4879 states to 4879 states and 5909 transitions. [2023-12-22 02:38:03,918 INFO L78 Accepts]: Start accepts. Automaton has 4879 states and 5909 transitions. Word has length 172 [2023-12-22 02:38:03,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:03,918 INFO L495 AbstractCegarLoop]: Abstraction has 4879 states and 5909 transitions. [2023-12-22 02:38:03,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:38:03,918 INFO L276 IsEmpty]: Start isEmpty. Operand 4879 states and 5909 transitions. [2023-12-22 02:38:03,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:38:03,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:03,920 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:03,925 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 (60)] Forceful destruction successful, exit code 0 [2023-12-22 02:38:04,124 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 02:38:04,124 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:04,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:04,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1330976494, now seen corresponding path program 1 times [2023-12-22 02:38:04,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:04,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934638460] [2023-12-22 02:38:04,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:04,125 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 02:38:04,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:04,127 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 02:38:04,128 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 02:38:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:04,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:38:04,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:04,420 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 02:38:04,420 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:04,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:04,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934638460] [2023-12-22 02:38:04,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934638460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:04,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:04,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:38:04,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415569558] [2023-12-22 02:38:04,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:04,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:38:04,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:04,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:38:04,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:38:04,423 INFO L87 Difference]: Start difference. First operand 4879 states and 5909 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:38:05,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:05,449 INFO L93 Difference]: Finished difference Result 8227 states and 10068 transitions. [2023-12-22 02:38:05,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:38:05,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:38:05,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:05,459 INFO L225 Difference]: With dead ends: 8227 [2023-12-22 02:38:05,459 INFO L226 Difference]: Without dead ends: 5079 [2023-12-22 02:38:05,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 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 02:38:05,465 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 881 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:05,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 958 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:38:05,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5079 states. [2023-12-22 02:38:05,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5079 to 4999. [2023-12-22 02:38:05,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4999 states, 4496 states have (on average 1.2130782918149465) internal successors, (5454), 4524 states have internal predecessors, (5454), 244 states have call successors, (244), 198 states have call predecessors, (244), 257 states have return successors, (302), 277 states have call predecessors, (302), 241 states have call successors, (302) [2023-12-22 02:38:05,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4999 states to 4999 states and 6000 transitions. [2023-12-22 02:38:05,985 INFO L78 Accepts]: Start accepts. Automaton has 4999 states and 6000 transitions. Word has length 172 [2023-12-22 02:38:05,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:05,985 INFO L495 AbstractCegarLoop]: Abstraction has 4999 states and 6000 transitions. [2023-12-22 02:38:05,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:38:05,985 INFO L276 IsEmpty]: Start isEmpty. Operand 4999 states and 6000 transitions. [2023-12-22 02:38:05,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:38:05,987 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:05,987 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:05,991 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 (61)] Forceful destruction successful, exit code 0 [2023-12-22 02:38:06,191 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 02:38:06,192 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:06,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:06,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1190427884, now seen corresponding path program 1 times [2023-12-22 02:38:06,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:06,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755396599] [2023-12-22 02:38:06,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:06,193 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 02:38:06,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:06,194 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 02:38:06,195 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 02:38:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:06,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:38:06,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:06,479 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 02:38:06,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:06,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:06,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755396599] [2023-12-22 02:38:06,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1755396599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:06,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:06,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:38:06,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325294476] [2023-12-22 02:38:06,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:06,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:38:06,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:06,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:38:06,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:06,481 INFO L87 Difference]: Start difference. First operand 4999 states and 6000 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 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 02:38:07,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:07,242 INFO L93 Difference]: Finished difference Result 11478 states and 13917 transitions. [2023-12-22 02:38:07,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:38:07,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 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 172 [2023-12-22 02:38:07,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:07,253 INFO L225 Difference]: With dead ends: 11478 [2023-12-22 02:38:07,253 INFO L226 Difference]: Without dead ends: 8211 [2023-12-22 02:38:07,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 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 02:38:07,256 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 461 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:07,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1092 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:38:07,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8211 states. [2023-12-22 02:38:07,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8211 to 8209. [2023-12-22 02:38:07,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8209 states, 7568 states have (on average 1.2115486257928119) internal successors, (9169), 7599 states have internal predecessors, (9169), 315 states have call successors, (315), 264 states have call predecessors, (315), 324 states have return successors, (374), 346 states have call predecessors, (374), 312 states have call successors, (374) [2023-12-22 02:38:07,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8209 states to 8209 states and 9858 transitions. [2023-12-22 02:38:07,906 INFO L78 Accepts]: Start accepts. Automaton has 8209 states and 9858 transitions. Word has length 172 [2023-12-22 02:38:07,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:07,906 INFO L495 AbstractCegarLoop]: Abstraction has 8209 states and 9858 transitions. [2023-12-22 02:38:07,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 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 02:38:07,906 INFO L276 IsEmpty]: Start isEmpty. Operand 8209 states and 9858 transitions. [2023-12-22 02:38:07,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-12-22 02:38:07,909 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:07,909 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:38:07,915 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 02:38:08,114 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 02:38:08,114 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:08,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:08,115 INFO L85 PathProgramCache]: Analyzing trace with hash 946857782, now seen corresponding path program 1 times [2023-12-22 02:38:08,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:08,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [890094778] [2023-12-22 02:38:08,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:08,115 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 02:38:08,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:08,117 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 02:38:08,152 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 02:38:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:08,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:38:08,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:08,270 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 02:38:08,270 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:08,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:08,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [890094778] [2023-12-22 02:38:08,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [890094778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:08,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:08,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:38:08,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603952083] [2023-12-22 02:38:08,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:08,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:38:08,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:08,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:38:08,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:08,272 INFO L87 Difference]: Start difference. First operand 8209 states and 9858 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 02:38:08,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:08,963 INFO L93 Difference]: Finished difference Result 9809 states and 11767 transitions. [2023-12-22 02:38:08,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:38:08,964 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 02:38:08,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:08,978 INFO L225 Difference]: With dead ends: 9809 [2023-12-22 02:38:08,978 INFO L226 Difference]: Without dead ends: 8185 [2023-12-22 02:38:08,980 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 02:38:08,980 INFO L413 NwaCegarLoop]: 644 mSDtfsCounter, 65 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:08,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1192 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:38:08,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8185 states. [2023-12-22 02:38:09,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8185 to 8011. [2023-12-22 02:38:09,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8011 states, 7407 states have (on average 1.2084514648305658) internal successors, (8951), 7437 states have internal predecessors, (8951), 297 states have call successors, (297), 251 states have call predecessors, (297), 305 states have return successors, (350), 323 states have call predecessors, (350), 294 states have call successors, (350) [2023-12-22 02:38:09,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8011 states to 8011 states and 9598 transitions. [2023-12-22 02:38:09,622 INFO L78 Accepts]: Start accepts. Automaton has 8011 states and 9598 transitions. Word has length 229 [2023-12-22 02:38:09,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:09,622 INFO L495 AbstractCegarLoop]: Abstraction has 8011 states and 9598 transitions. [2023-12-22 02:38:09,622 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 02:38:09,622 INFO L276 IsEmpty]: Start isEmpty. Operand 8011 states and 9598 transitions. [2023-12-22 02:38:09,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-12-22 02:38:09,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:09,625 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:38:09,636 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 02:38:09,830 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 02:38:09,830 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:09,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:09,831 INFO L85 PathProgramCache]: Analyzing trace with hash 495491357, now seen corresponding path program 1 times [2023-12-22 02:38:09,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:09,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1846755128] [2023-12-22 02:38:09,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:09,832 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 02:38:09,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:09,833 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 02:38:09,835 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 02:38:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:09,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:38:09,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:10,002 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 02:38:10,002 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:10,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:10,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1846755128] [2023-12-22 02:38:10,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1846755128] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:10,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:10,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:38:10,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713004889] [2023-12-22 02:38:10,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:10,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:38:10,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:10,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:38:10,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:38:10,004 INFO L87 Difference]: Start difference. First operand 8011 states and 9598 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 02:38:11,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:11,186 INFO L93 Difference]: Finished difference Result 8766 states and 10475 transitions. [2023-12-22 02:38:11,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:38:11,186 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 02:38:11,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:11,197 INFO L225 Difference]: With dead ends: 8766 [2023-12-22 02:38:11,197 INFO L226 Difference]: Without dead ends: 7324 [2023-12-22 02:38:11,199 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 02:38:11,200 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 289 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:11,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 1242 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1155 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 02:38:11,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7324 states. [2023-12-22 02:38:11,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7324 to 7242. [2023-12-22 02:38:11,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7242 states, 6790 states have (on average 1.2098674521354933) internal successors, (8215), 6807 states have internal predecessors, (8215), 228 states have call successors, (228), 202 states have call predecessors, (228), 222 states have return successors, (257), 233 states have call predecessors, (257), 225 states have call successors, (257) [2023-12-22 02:38:11,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7242 states to 7242 states and 8700 transitions. [2023-12-22 02:38:11,671 INFO L78 Accepts]: Start accepts. Automaton has 7242 states and 8700 transitions. Word has length 230 [2023-12-22 02:38:11,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:11,671 INFO L495 AbstractCegarLoop]: Abstraction has 7242 states and 8700 transitions. [2023-12-22 02:38:11,671 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 02:38:11,672 INFO L276 IsEmpty]: Start isEmpty. Operand 7242 states and 8700 transitions. [2023-12-22 02:38:11,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-22 02:38:11,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:11,674 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 4, 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, 1, 1] [2023-12-22 02:38:11,680 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 (64)] Ended with exit code 0 [2023-12-22 02:38:11,879 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 02:38:11,880 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:11,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:11,880 INFO L85 PathProgramCache]: Analyzing trace with hash 340864250, now seen corresponding path program 1 times [2023-12-22 02:38:11,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:11,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [975650264] [2023-12-22 02:38:11,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:11,881 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 02:38:11,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:11,882 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 02:38:11,883 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 02:38:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:12,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:38:12,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:12,056 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-22 02:38:12,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:12,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:12,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [975650264] [2023-12-22 02:38:12,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [975650264] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:12,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:12,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:38:12,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689998934] [2023-12-22 02:38:12,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:12,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:38:12,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:12,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:38:12,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:38:12,058 INFO L87 Difference]: Start difference. First operand 7242 states and 8700 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-22 02:38:13,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:13,016 INFO L93 Difference]: Finished difference Result 7921 states and 9476 transitions. [2023-12-22 02:38:13,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:38:13,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 233 [2023-12-22 02:38:13,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:13,026 INFO L225 Difference]: With dead ends: 7921 [2023-12-22 02:38:13,026 INFO L226 Difference]: Without dead ends: 7266 [2023-12-22 02:38:13,027 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 02:38:13,028 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 771 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:13,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 957 Invalid, 884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:38:13,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7266 states. [2023-12-22 02:38:13,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7266 to 7248. [2023-12-22 02:38:13,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7248 states, 6794 states have (on average 1.2097438916691199) internal successors, (8219), 6811 states have internal predecessors, (8219), 229 states have call successors, (229), 203 states have call predecessors, (229), 223 states have return successors, (259), 234 states have call predecessors, (259), 226 states have call successors, (259) [2023-12-22 02:38:13,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7248 states to 7248 states and 8707 transitions. [2023-12-22 02:38:13,540 INFO L78 Accepts]: Start accepts. Automaton has 7248 states and 8707 transitions. Word has length 233 [2023-12-22 02:38:13,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:13,540 INFO L495 AbstractCegarLoop]: Abstraction has 7248 states and 8707 transitions. [2023-12-22 02:38:13,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-22 02:38:13,540 INFO L276 IsEmpty]: Start isEmpty. Operand 7248 states and 8707 transitions. [2023-12-22 02:38:13,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-22 02:38:13,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:13,543 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 4, 4, 4, 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, 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] [2023-12-22 02:38:13,548 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 02:38:13,750 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 02:38:13,751 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:13,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:13,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1818219844, now seen corresponding path program 1 times [2023-12-22 02:38:13,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:13,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705635992] [2023-12-22 02:38:13,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:13,752 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 02:38:13,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:13,754 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 02:38:13,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2023-12-22 02:38:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:13,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:38:13,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:13,917 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-12-22 02:38:13,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:13,917 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:13,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [705635992] [2023-12-22 02:38:13,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [705635992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:13,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:13,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:38:13,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301735805] [2023-12-22 02:38:13,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:13,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:38:13,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:13,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:38:13,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:13,919 INFO L87 Difference]: Start difference. First operand 7248 states and 8707 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-22 02:38:14,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:14,443 INFO L93 Difference]: Finished difference Result 7903 states and 9469 transitions. [2023-12-22 02:38:14,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:38:14,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 233 [2023-12-22 02:38:14,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:14,454 INFO L225 Difference]: With dead ends: 7903 [2023-12-22 02:38:14,454 INFO L226 Difference]: Without dead ends: 7242 [2023-12-22 02:38:14,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 231 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 02:38:14,456 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 70 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:14,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1177 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:38:14,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7242 states. [2023-12-22 02:38:14,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7242 to 7239. [2023-12-22 02:38:14,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7239 states, 6786 states have (on average 1.2083701738874153) internal successors, (8200), 6803 states have internal predecessors, (8200), 229 states have call successors, (229), 203 states have call predecessors, (229), 222 states have return successors, (258), 233 states have call predecessors, (258), 226 states have call successors, (258) [2023-12-22 02:38:14,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7239 states to 7239 states and 8687 transitions. [2023-12-22 02:38:14,952 INFO L78 Accepts]: Start accepts. Automaton has 7239 states and 8687 transitions. Word has length 233 [2023-12-22 02:38:14,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:14,952 INFO L495 AbstractCegarLoop]: Abstraction has 7239 states and 8687 transitions. [2023-12-22 02:38:14,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-22 02:38:14,953 INFO L276 IsEmpty]: Start isEmpty. Operand 7239 states and 8687 transitions. [2023-12-22 02:38:14,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-12-22 02:38:14,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:14,955 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 4, 4, 4, 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, 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 02:38:14,960 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 02:38:15,160 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 02:38:15,160 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:15,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:15,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2146967845, now seen corresponding path program 1 times [2023-12-22 02:38:15,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:15,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575512785] [2023-12-22 02:38:15,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:15,161 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 02:38:15,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:15,163 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 02:38:15,164 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 02:38:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:15,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:38:15,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:15,365 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-22 02:38:15,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:15,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:15,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575512785] [2023-12-22 02:38:15,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575512785] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:15,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:15,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:38:15,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794547163] [2023-12-22 02:38:15,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:15,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:38:15,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:15,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:38:15,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:38:15,367 INFO L87 Difference]: Start difference. First operand 7239 states and 8687 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 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 02:38:16,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:16,312 INFO L93 Difference]: Finished difference Result 7450 states and 8920 transitions. [2023-12-22 02:38:16,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:38:16,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 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 234 [2023-12-22 02:38:16,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:16,321 INFO L225 Difference]: With dead ends: 7450 [2023-12-22 02:38:16,321 INFO L226 Difference]: Without dead ends: 6498 [2023-12-22 02:38:16,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 231 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 02:38:16,323 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 270 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:16,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 955 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:38:16,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6498 states. [2023-12-22 02:38:16,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6498 to 6498. [2023-12-22 02:38:16,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6498 states, 6215 states have (on average 1.2168946098149638) internal successors, (7563), 6221 states have internal predecessors, (7563), 148 states have call successors, (148), 133 states have call predecessors, (148), 134 states have return successors, (148), 144 states have call predecessors, (148), 146 states have call successors, (148) [2023-12-22 02:38:16,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6498 states to 6498 states and 7859 transitions. [2023-12-22 02:38:16,698 INFO L78 Accepts]: Start accepts. Automaton has 6498 states and 7859 transitions. Word has length 234 [2023-12-22 02:38:16,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:16,698 INFO L495 AbstractCegarLoop]: Abstraction has 6498 states and 7859 transitions. [2023-12-22 02:38:16,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 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 02:38:16,699 INFO L276 IsEmpty]: Start isEmpty. Operand 6498 states and 7859 transitions. [2023-12-22 02:38:16,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-12-22 02:38:16,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:16,702 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:16,710 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 (67)] Forceful destruction successful, exit code 0 [2023-12-22 02:38:16,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:38:16,908 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:16,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:16,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1907212817, now seen corresponding path program 1 times [2023-12-22 02:38:16,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:16,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442135489] [2023-12-22 02:38:16,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:16,909 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 02:38:16,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:16,911 INFO L229 MonitoredProcess]: Starting monitored process 68 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 02:38:16,945 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 (68)] Waiting until timeout for monitored process [2023-12-22 02:38:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:17,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:38:17,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:17,223 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-22 02:38:17,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:17,224 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:17,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442135489] [2023-12-22 02:38:17,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442135489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:17,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:17,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:38:17,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090514751] [2023-12-22 02:38:17,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:17,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:38:17,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:17,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:38:17,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:17,225 INFO L87 Difference]: Start difference. First operand 6498 states and 7859 transitions. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 2 states have internal predecessors, (253), 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 02:38:17,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:17,848 INFO L93 Difference]: Finished difference Result 19009 states and 23090 transitions. [2023-12-22 02:38:17,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:38:17,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 2 states have internal predecessors, (253), 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 276 [2023-12-22 02:38:17,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:17,866 INFO L225 Difference]: With dead ends: 19009 [2023-12-22 02:38:17,866 INFO L226 Difference]: Without dead ends: 12532 [2023-12-22 02:38:17,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 274 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 02:38:17,872 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 348 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:17,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 983 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:38:17,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12532 states. [2023-12-22 02:38:18,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12532 to 12524. [2023-12-22 02:38:18,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12524 states, 11981 states have (on average 1.2121692680076788) internal successors, (14523), 11991 states have internal predecessors, (14523), 282 states have call successors, (282), 257 states have call predecessors, (282), 260 states have return successors, (284), 276 states have call predecessors, (284), 280 states have call successors, (284) [2023-12-22 02:38:18,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12524 states to 12524 states and 15089 transitions. [2023-12-22 02:38:18,462 INFO L78 Accepts]: Start accepts. Automaton has 12524 states and 15089 transitions. Word has length 276 [2023-12-22 02:38:18,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:18,462 INFO L495 AbstractCegarLoop]: Abstraction has 12524 states and 15089 transitions. [2023-12-22 02:38:18,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 2 states have internal predecessors, (253), 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 02:38:18,462 INFO L276 IsEmpty]: Start isEmpty. Operand 12524 states and 15089 transitions. [2023-12-22 02:38:18,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-12-22 02:38:18,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:18,468 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, 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, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:18,473 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 (68)] Ended with exit code 0 [2023-12-22 02:38:18,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:38:18,674 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:18,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:18,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1260085040, now seen corresponding path program 1 times [2023-12-22 02:38:18,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:18,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875885850] [2023-12-22 02:38:18,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:18,675 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 02:38:18,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:18,676 INFO L229 MonitoredProcess]: Starting monitored process 69 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 02:38:18,678 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 (69)] Waiting until timeout for monitored process [2023-12-22 02:38:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:18,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:38:18,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-22 02:38:19,134 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:19,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:19,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875885850] [2023-12-22 02:38:19,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875885850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:19,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:19,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:38:19,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584916466] [2023-12-22 02:38:19,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:19,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:38:19,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:19,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:38:19,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:38:19,135 INFO L87 Difference]: Start difference. First operand 12524 states and 15089 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 02:38:20,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:20,561 INFO L93 Difference]: Finished difference Result 37350 states and 44949 transitions. [2023-12-22 02:38:20,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:38:20,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 276 [2023-12-22 02:38:20,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:20,609 INFO L225 Difference]: With dead ends: 37350 [2023-12-22 02:38:20,609 INFO L226 Difference]: Without dead ends: 24848 [2023-12-22 02:38:20,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 274 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 02:38:20,628 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 705 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 1437 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:20,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 1437 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:38:20,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24848 states. [2023-12-22 02:38:21,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24848 to 24844. [2023-12-22 02:38:21,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24844 states, 23770 states have (on average 1.2078670593184686) internal successors, (28711), 23793 states have internal predecessors, (28711), 553 states have call successors, (553), 505 states have call predecessors, (553), 520 states have return successors, (591), 547 states have call predecessors, (591), 551 states have call successors, (591) [2023-12-22 02:38:22,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24844 states to 24844 states and 29855 transitions. [2023-12-22 02:38:22,038 INFO L78 Accepts]: Start accepts. Automaton has 24844 states and 29855 transitions. Word has length 276 [2023-12-22 02:38:22,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:22,039 INFO L495 AbstractCegarLoop]: Abstraction has 24844 states and 29855 transitions. [2023-12-22 02:38:22,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 02:38:22,039 INFO L276 IsEmpty]: Start isEmpty. Operand 24844 states and 29855 transitions. [2023-12-22 02:38:22,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-12-22 02:38:22,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:22,051 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, 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, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:22,059 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 (69)] Ended with exit code 0 [2023-12-22 02:38:22,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:38:22,259 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:22,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:22,259 INFO L85 PathProgramCache]: Analyzing trace with hash 122056146, now seen corresponding path program 1 times [2023-12-22 02:38:22,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:22,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410052306] [2023-12-22 02:38:22,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:22,260 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 02:38:22,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:22,261 INFO L229 MonitoredProcess]: Starting monitored process 70 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 02:38:22,294 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 (70)] Waiting until timeout for monitored process [2023-12-22 02:38:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:22,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:38:22,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:22,474 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-22 02:38:22,474 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:22,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:22,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410052306] [2023-12-22 02:38:22,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410052306] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:22,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:22,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:38:22,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623387282] [2023-12-22 02:38:22,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:22,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:38:22,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:22,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:38:22,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:22,476 INFO L87 Difference]: Start difference. First operand 24844 states and 29855 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 02:38:23,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:23,627 INFO L93 Difference]: Finished difference Result 43636 states and 52416 transitions. [2023-12-22 02:38:23,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:38:23,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 276 [2023-12-22 02:38:23,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:23,656 INFO L225 Difference]: With dead ends: 43636 [2023-12-22 02:38:23,656 INFO L226 Difference]: Without dead ends: 18814 [2023-12-22 02:38:23,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 274 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 02:38:23,676 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 525 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:23,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 484 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:38:23,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18814 states. [2023-12-22 02:38:24,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18814 to 18814. [2023-12-22 02:38:24,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18814 states, 18003 states have (on average 1.207687607620952) internal successors, (21742), 18021 states have internal predecessors, (21742), 416 states have call successors, (416), 381 states have call predecessors, (416), 394 states have return successors, (440), 412 states have call predecessors, (440), 414 states have call successors, (440) [2023-12-22 02:38:24,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18814 states to 18814 states and 22598 transitions. [2023-12-22 02:38:24,648 INFO L78 Accepts]: Start accepts. Automaton has 18814 states and 22598 transitions. Word has length 276 [2023-12-22 02:38:24,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:24,648 INFO L495 AbstractCegarLoop]: Abstraction has 18814 states and 22598 transitions. [2023-12-22 02:38:24,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 02:38:24,648 INFO L276 IsEmpty]: Start isEmpty. Operand 18814 states and 22598 transitions. [2023-12-22 02:38:24,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-12-22 02:38:24,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:24,654 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:24,659 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 (70)] Ended with exit code 0 [2023-12-22 02:38:24,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:38:24,860 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:24,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:24,860 INFO L85 PathProgramCache]: Analyzing trace with hash -64470411, now seen corresponding path program 1 times [2023-12-22 02:38:24,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:24,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638266281] [2023-12-22 02:38:24,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:24,861 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 02:38:24,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:24,862 INFO L229 MonitoredProcess]: Starting monitored process 71 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 02:38:24,863 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 (71)] Waiting until timeout for monitored process [2023-12-22 02:38:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:25,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:38:25,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:25,327 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-22 02:38:25,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:25,328 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:25,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638266281] [2023-12-22 02:38:25,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638266281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:25,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:25,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:38:25,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884780374] [2023-12-22 02:38:25,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:25,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:38:25,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:25,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:38:25,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:38:25,329 INFO L87 Difference]: Start difference. First operand 18814 states and 22598 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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 02:38:27,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:27,396 INFO L93 Difference]: Finished difference Result 55483 states and 66608 transitions. [2023-12-22 02:38:27,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:38:27,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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 278 [2023-12-22 02:38:27,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:27,472 INFO L225 Difference]: With dead ends: 55483 [2023-12-22 02:38:27,472 INFO L226 Difference]: Without dead ends: 36691 [2023-12-22 02:38:27,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 276 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 02:38:27,497 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 696 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:27,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 1416 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:38:27,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36691 states. [2023-12-22 02:38:29,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36691 to 36687. [2023-12-22 02:38:29,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36687 states, 35109 states have (on average 1.205844655216611) internal successors, (42336), 35148 states have internal predecessors, (42336), 805 states have call successors, (805), 737 states have call predecessors, (805), 772 states have return successors, (875), 803 states have call predecessors, (875), 803 states have call successors, (875) [2023-12-22 02:38:29,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36687 states to 36687 states and 44016 transitions. [2023-12-22 02:38:29,673 INFO L78 Accepts]: Start accepts. Automaton has 36687 states and 44016 transitions. Word has length 278 [2023-12-22 02:38:29,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:29,674 INFO L495 AbstractCegarLoop]: Abstraction has 36687 states and 44016 transitions. [2023-12-22 02:38:29,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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 02:38:29,674 INFO L276 IsEmpty]: Start isEmpty. Operand 36687 states and 44016 transitions. [2023-12-22 02:38:29,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-12-22 02:38:29,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:29,687 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:29,696 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 (71)] Forceful destruction successful, exit code 0 [2023-12-22 02:38:29,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:38:29,891 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:29,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:29,892 INFO L85 PathProgramCache]: Analyzing trace with hash -167766605, now seen corresponding path program 1 times [2023-12-22 02:38:29,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:29,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567393472] [2023-12-22 02:38:29,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:29,892 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 02:38:29,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:29,894 INFO L229 MonitoredProcess]: Starting monitored process 72 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 02:38:29,927 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 (72)] Waiting until timeout for monitored process [2023-12-22 02:38:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:30,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:38:30,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:30,093 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-22 02:38:30,093 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:30,093 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:30,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567393472] [2023-12-22 02:38:30,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567393472] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:30,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:30,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:38:30,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154148146] [2023-12-22 02:38:30,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:30,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:38:30,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:30,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:38:30,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:30,095 INFO L87 Difference]: Start difference. First operand 36687 states and 44016 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 02:38:32,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:32,138 INFO L93 Difference]: Finished difference Result 73337 states and 87967 transitions. [2023-12-22 02:38:32,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:38:32,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 278 [2023-12-22 02:38:32,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:32,197 INFO L225 Difference]: With dead ends: 73337 [2023-12-22 02:38:32,197 INFO L226 Difference]: Without dead ends: 36672 [2023-12-22 02:38:32,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 276 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 02:38:32,219 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 523 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:32,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 483 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:38:32,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36672 states. [2023-12-22 02:38:34,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36672 to 36672. [2023-12-22 02:38:34,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36672 states, 35097 states have (on average 1.2056016183719407) internal successors, (42313), 35135 states have internal predecessors, (42313), 802 states have call successors, (802), 737 states have call predecessors, (802), 772 states have return successors, (872), 800 states have call predecessors, (872), 800 states have call successors, (872) [2023-12-22 02:38:34,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36672 states to 36672 states and 43987 transitions. [2023-12-22 02:38:34,551 INFO L78 Accepts]: Start accepts. Automaton has 36672 states and 43987 transitions. Word has length 278 [2023-12-22 02:38:34,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:34,552 INFO L495 AbstractCegarLoop]: Abstraction has 36672 states and 43987 transitions. [2023-12-22 02:38:34,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 02:38:34,552 INFO L276 IsEmpty]: Start isEmpty. Operand 36672 states and 43987 transitions. [2023-12-22 02:38:34,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-22 02:38:34,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:34,565 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:34,574 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 (72)] Forceful destruction successful, exit code 0 [2023-12-22 02:38:34,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:38:34,772 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:34,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:34,773 INFO L85 PathProgramCache]: Analyzing trace with hash 78603472, now seen corresponding path program 1 times [2023-12-22 02:38:34,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:34,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025268127] [2023-12-22 02:38:34,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:34,773 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 02:38:34,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:34,775 INFO L229 MonitoredProcess]: Starting monitored process 73 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 02:38:34,776 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 (73)] Waiting until timeout for monitored process [2023-12-22 02:38:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:34,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:38:34,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:35,284 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-22 02:38:35,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:35,284 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:35,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025268127] [2023-12-22 02:38:35,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2025268127] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:35,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:35,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:38:35,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889213099] [2023-12-22 02:38:35,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:35,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:38:35,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:35,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:38:35,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:38:35,286 INFO L87 Difference]: Start difference. First operand 36672 states and 43987 transitions. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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 02:38:39,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:39,487 INFO L93 Difference]: Finished difference Result 108382 states and 129955 transitions. [2023-12-22 02:38:39,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:38:39,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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 280 [2023-12-22 02:38:39,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:39,718 INFO L225 Difference]: With dead ends: 108382 [2023-12-22 02:38:39,718 INFO L226 Difference]: Without dead ends: 71732 [2023-12-22 02:38:39,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 278 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 02:38:39,756 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 693 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:39,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 1378 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:38:39,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71732 states. [2023-12-22 02:38:43,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71732 to 71728. [2023-12-22 02:38:43,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71728 states, 68654 states have (on average 1.2042561249162467) internal successors, (82677), 68741 states have internal predecessors, (82677), 1553 states have call successors, (1553), 1425 states have call predecessors, (1553), 1520 states have return successors, (1731), 1563 states have call predecessors, (1731), 1551 states have call successors, (1731) [2023-12-22 02:38:43,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71728 states to 71728 states and 85961 transitions. [2023-12-22 02:38:43,557 INFO L78 Accepts]: Start accepts. Automaton has 71728 states and 85961 transitions. Word has length 280 [2023-12-22 02:38:43,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:43,558 INFO L495 AbstractCegarLoop]: Abstraction has 71728 states and 85961 transitions. [2023-12-22 02:38:43,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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 02:38:43,558 INFO L276 IsEmpty]: Start isEmpty. Operand 71728 states and 85961 transitions. [2023-12-22 02:38:43,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-22 02:38:43,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:43,613 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:43,621 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 (73)] Ended with exit code 0 [2023-12-22 02:38:43,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:38:43,820 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:43,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:43,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1171388754, now seen corresponding path program 1 times [2023-12-22 02:38:43,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:43,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788097015] [2023-12-22 02:38:43,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:43,821 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 02:38:43,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:43,823 INFO L229 MonitoredProcess]: Starting monitored process 74 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 02:38:43,824 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 (74)] Waiting until timeout for monitored process [2023-12-22 02:38:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:44,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:38:44,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:44,019 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-22 02:38:44,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:44,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:44,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788097015] [2023-12-22 02:38:44,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788097015] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:44,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:44,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:38:44,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109832383] [2023-12-22 02:38:44,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:44,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:38:44,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:44,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:38:44,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:38:44,021 INFO L87 Difference]: Start difference. First operand 71728 states and 85961 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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 02:38:47,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:38:47,914 INFO L93 Difference]: Finished difference Result 143420 states and 171860 transitions. [2023-12-22 02:38:47,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:38:47,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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 280 [2023-12-22 02:38:47,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:38:48,065 INFO L225 Difference]: With dead ends: 143420 [2023-12-22 02:38:48,065 INFO L226 Difference]: Without dead ends: 71714 [2023-12-22 02:38:48,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 278 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 02:38:48,139 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 521 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:38:48,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 482 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:38:48,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71714 states. [2023-12-22 02:38:52,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71714 to 71714. [2023-12-22 02:38:52,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71714 states, 68643 states have (on average 1.2041431755605088) internal successors, (82656), 68729 states have internal predecessors, (82656), 1550 states have call successors, (1550), 1425 states have call predecessors, (1550), 1520 states have return successors, (1728), 1560 states have call predecessors, (1728), 1548 states have call successors, (1728) [2023-12-22 02:38:52,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71714 states to 71714 states and 85934 transitions. [2023-12-22 02:38:52,208 INFO L78 Accepts]: Start accepts. Automaton has 71714 states and 85934 transitions. Word has length 280 [2023-12-22 02:38:52,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:38:52,209 INFO L495 AbstractCegarLoop]: Abstraction has 71714 states and 85934 transitions. [2023-12-22 02:38:52,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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 02:38:52,209 INFO L276 IsEmpty]: Start isEmpty. Operand 71714 states and 85934 transitions. [2023-12-22 02:38:52,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-12-22 02:38:52,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:38:52,231 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:38:52,237 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 (74)] Forceful destruction successful, exit code 0 [2023-12-22 02:38:52,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:38:52,438 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:38:52,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:38:52,439 INFO L85 PathProgramCache]: Analyzing trace with hash 66351029, now seen corresponding path program 1 times [2023-12-22 02:38:52,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:38:52,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444776537] [2023-12-22 02:38:52,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:38:52,439 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 02:38:52,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:38:52,440 INFO L229 MonitoredProcess]: Starting monitored process 75 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 02:38:52,442 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 (75)] Waiting until timeout for monitored process [2023-12-22 02:38:52,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:38:52,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:38:52,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:38:52,878 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-22 02:38:52,878 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:38:52,878 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:38:52,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444776537] [2023-12-22 02:38:52,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1444776537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:38:52,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:38:52,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:38:52,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557266065] [2023-12-22 02:38:52,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:38:52,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:38:52,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:38:52,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:38:52,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:38:52,880 INFO L87 Difference]: Start difference. First operand 71714 states and 85934 transitions. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 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 02:39:00,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:00,301 INFO L93 Difference]: Finished difference Result 211899 states and 253876 transitions. [2023-12-22 02:39:00,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:39:00,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 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 282 [2023-12-22 02:39:00,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:00,754 INFO L225 Difference]: With dead ends: 211899 [2023-12-22 02:39:00,755 INFO L226 Difference]: Without dead ends: 140207 [2023-12-22 02:39:00,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 280 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 02:39:00,831 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 688 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:00,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1347 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:39:00,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140207 states. [2023-12-22 02:39:08,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140207 to 140203. [2023-12-22 02:39:08,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140203 states, 134209 states have (on average 1.2032725078049906) internal successors, (161490), 134404 states have internal predecessors, (161490), 3001 states have call successors, (3001), 2753 states have call predecessors, (3001), 2992 states have return successors, (3419), 3047 states have call predecessors, (3419), 2999 states have call successors, (3419) [2023-12-22 02:39:08,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140203 states to 140203 states and 167910 transitions. [2023-12-22 02:39:08,778 INFO L78 Accepts]: Start accepts. Automaton has 140203 states and 167910 transitions. Word has length 282 [2023-12-22 02:39:08,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:08,779 INFO L495 AbstractCegarLoop]: Abstraction has 140203 states and 167910 transitions. [2023-12-22 02:39:08,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 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 02:39:08,779 INFO L276 IsEmpty]: Start isEmpty. Operand 140203 states and 167910 transitions. [2023-12-22 02:39:08,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-12-22 02:39:08,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:08,822 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:39:08,831 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 (75)] Forceful destruction successful, exit code 0 [2023-12-22 02:39:09,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:39:09,029 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:09,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:09,029 INFO L85 PathProgramCache]: Analyzing trace with hash -417043597, now seen corresponding path program 1 times [2023-12-22 02:39:09,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:09,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368679624] [2023-12-22 02:39:09,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:09,030 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 02:39:09,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:09,031 INFO L229 MonitoredProcess]: Starting monitored process 76 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 02:39:09,032 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 (76)] Waiting until timeout for monitored process [2023-12-22 02:39:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:09,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:39:09,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:09,266 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-22 02:39:09,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:09,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:09,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368679624] [2023-12-22 02:39:09,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368679624] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:09,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:09,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:39:09,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751996953] [2023-12-22 02:39:09,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:09,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:39:09,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:09,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:39:09,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:09,269 INFO L87 Difference]: Start difference. First operand 140203 states and 167910 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 02:39:16,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:16,813 INFO L93 Difference]: Finished difference Result 280371 states and 335761 transitions. [2023-12-22 02:39:16,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:39:16,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 282 [2023-12-22 02:39:16,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:17,162 INFO L225 Difference]: With dead ends: 280371 [2023-12-22 02:39:17,162 INFO L226 Difference]: Without dead ends: 140190 [2023-12-22 02:39:17,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 280 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 02:39:17,249 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 519 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:17,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 481 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:39:17,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140190 states. [2023-12-22 02:39:25,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140190 to 140190. [2023-12-22 02:39:25,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140190 states, 134199 states have (on average 1.2032205903173645) internal successors, (161471), 134393 states have internal predecessors, (161471), 2998 states have call successors, (2998), 2753 states have call predecessors, (2998), 2992 states have return successors, (3416), 3044 states have call predecessors, (3416), 2996 states have call successors, (3416) [2023-12-22 02:39:25,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140190 states to 140190 states and 167885 transitions. [2023-12-22 02:39:25,682 INFO L78 Accepts]: Start accepts. Automaton has 140190 states and 167885 transitions. Word has length 282 [2023-12-22 02:39:25,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:25,682 INFO L495 AbstractCegarLoop]: Abstraction has 140190 states and 167885 transitions. [2023-12-22 02:39:25,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 02:39:25,683 INFO L276 IsEmpty]: Start isEmpty. Operand 140190 states and 167885 transitions. [2023-12-22 02:39:25,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-12-22 02:39:25,752 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:25,752 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:39:25,760 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 (76)] Forceful destruction successful, exit code 0 [2023-12-22 02:39:25,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:39:25,955 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:25,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:25,956 INFO L85 PathProgramCache]: Analyzing trace with hash 66105552, now seen corresponding path program 1 times [2023-12-22 02:39:25,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:25,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746647687] [2023-12-22 02:39:25,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:25,956 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 02:39:25,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:25,958 INFO L229 MonitoredProcess]: Starting monitored process 77 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 02:39:25,959 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 (77)] Waiting until timeout for monitored process [2023-12-22 02:39:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:26,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:39:26,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-22 02:39:26,414 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:26,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:26,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746647687] [2023-12-22 02:39:26,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746647687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:26,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:26,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:26,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564987807] [2023-12-22 02:39:26,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:26,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:39:26,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:26,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:39:26,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:39:26,415 INFO L87 Difference]: Start difference. First operand 140190 states and 167885 transitions. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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)