/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.05.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 02:33:55,394 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 02:33:55,454 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 02:33:55,461 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 02:33:55,462 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 02:33:55,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 02:33:55,492 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 02:33:55,492 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 02:33:55,492 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 02:33:55,496 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 02:33:55,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 02:33:55,496 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 02:33:55,496 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 02:33:55,497 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 02:33:55,497 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 02:33:55,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 02:33:55,498 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 02:33:55,498 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 02:33:55,498 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 02:33:55,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 02:33:55,499 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 02:33:55,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 02:33:55,499 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 02:33:55,499 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 02:33:55,499 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 02:33:55,500 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 02:33:55,500 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 02:33:55,500 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 02:33:55,500 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 02:33:55,500 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 02:33:55,501 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 02:33:55,501 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 02:33:55,501 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 02:33:55,501 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 02:33:55,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:33:55,502 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 02:33:55,502 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 02:33:55,502 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 02:33:55,502 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 02:33:55,502 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 02:33:55,502 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 02:33:55,502 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 02:33:55,502 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 02:33:55,503 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 02:33:55,503 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 02:33:55,503 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 02:33:55,503 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 02:33:55,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 02:33:55,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 02:33:55,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 02:33:55,695 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 02:33:55,695 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 02:33:55,696 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.05.cil-1.c [2023-12-22 02:33:56,824 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 02:33:57,010 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 02:33:57,010 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.05.cil-1.c [2023-12-22 02:33:57,020 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3c788aad/d4e4d2267eb74217804ca31da6b5c68c/FLAG1efbf0b45 [2023-12-22 02:33:57,034 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3c788aad/d4e4d2267eb74217804ca31da6b5c68c [2023-12-22 02:33:57,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 02:33:57,037 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 02:33:57,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 02:33:57,039 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 02:33:57,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 02:33:57,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:33:57" (1/1) ... [2023-12-22 02:33:57,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b0b7aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:33:57, skipping insertion in model container [2023-12-22 02:33:57,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:33:57" (1/1) ... [2023-12-22 02:33:57,096 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 02:33:57,224 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.05.cil-1.c[914,927] [2023-12-22 02:33:57,267 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.05.cil-1.c[7115,7128] [2023-12-22 02:33:57,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:33:57,334 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 02:33:57,343 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.05.cil-1.c[914,927] [2023-12-22 02:33:57,355 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.05.cil-1.c[7115,7128] [2023-12-22 02:33:57,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:33:57,397 INFO L206 MainTranslator]: Completed translation [2023-12-22 02:33:57,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:33:57 WrapperNode [2023-12-22 02:33:57,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 02:33:57,399 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 02:33:57,399 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 02:33:57,399 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 02:33:57,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:33:57" (1/1) ... [2023-12-22 02:33:57,423 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:33:57" (1/1) ... [2023-12-22 02:33:57,472 INFO L138 Inliner]: procedures = 64, calls = 72, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 623 [2023-12-22 02:33:57,473 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 02:33:57,474 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 02:33:57,474 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 02:33:57,474 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 02:33:57,491 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:33:57" (1/1) ... [2023-12-22 02:33:57,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:33:57" (1/1) ... [2023-12-22 02:33:57,495 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:33:57" (1/1) ... [2023-12-22 02:33:57,511 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 02:33:57,512 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:33:57" (1/1) ... [2023-12-22 02:33:57,512 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:33:57" (1/1) ... [2023-12-22 02:33:57,539 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:33:57" (1/1) ... [2023-12-22 02:33:57,545 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:33:57" (1/1) ... [2023-12-22 02:33:57,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:33:57" (1/1) ... [2023-12-22 02:33:57,549 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:33:57" (1/1) ... [2023-12-22 02:33:57,566 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 02:33:57,569 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 02:33:57,569 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 02:33:57,569 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 02:33:57,570 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:33:57" (1/1) ... [2023-12-22 02:33:57,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:33:57,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 02:33:57,608 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 02:33:57,617 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 02:33:57,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 02:33:57,636 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-22 02:33:57,636 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-22 02:33:57,636 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-22 02:33:57,636 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-22 02:33:57,636 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-22 02:33:57,636 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-22 02:33:57,636 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-22 02:33:57,636 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-22 02:33:57,636 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-22 02:33:57,637 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-22 02:33:57,637 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-22 02:33:57,637 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-22 02:33:57,637 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-22 02:33:57,637 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-22 02:33:57,637 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-22 02:33:57,637 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-22 02:33:57,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 02:33:57,638 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-22 02:33:57,638 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-22 02:33:57,638 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-22 02:33:57,638 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-22 02:33:57,638 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-22 02:33:57,639 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-22 02:33:57,639 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-22 02:33:57,640 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-22 02:33:57,640 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-22 02:33:57,640 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-22 02:33:57,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 02:33:57,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 02:33:57,640 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-22 02:33:57,640 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-22 02:33:57,753 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 02:33:57,756 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 02:33:58,378 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 02:33:58,436 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 02:33:58,436 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-12-22 02:33:58,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:33:58 BoogieIcfgContainer [2023-12-22 02:33:58,437 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 02:33:58,438 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 02:33:58,438 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 02:33:58,440 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 02:33:58,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:33:57" (1/3) ... [2023-12-22 02:33:58,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41912ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:33:58, skipping insertion in model container [2023-12-22 02:33:58,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:33:57" (2/3) ... [2023-12-22 02:33:58,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41912ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:33:58, skipping insertion in model container [2023-12-22 02:33:58,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:33:58" (3/3) ... [2023-12-22 02:33:58,443 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.05.cil-1.c [2023-12-22 02:33:58,455 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 02:33:58,455 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 02:33:58,499 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 02:33:58,504 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;@69e055a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 02:33:58,504 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 02:33:58,510 INFO L276 IsEmpty]: Start isEmpty. Operand has 278 states, 228 states have (on average 1.6754385964912282) internal successors, (382), 234 states have internal predecessors, (382), 33 states have call successors, (33), 14 states have call predecessors, (33), 14 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-22 02:33:58,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:33:58,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:58,523 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 02:33:58,523 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:58,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:58,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1042325676, now seen corresponding path program 1 times [2023-12-22 02:33:58,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:58,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830767435] [2023-12-22 02:33:58,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:58,538 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 02:33:58,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:58,541 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 02:33:58,547 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 02:33:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:58,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:33:58,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:58,690 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 02:33:58,690 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:58,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:58,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830767435] [2023-12-22 02:33:58,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830767435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:58,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:58,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:33:58,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049580700] [2023-12-22 02:33:58,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:58,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:33:58,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:58,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:33:58,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:33:58,727 INFO L87 Difference]: Start difference. First operand has 278 states, 228 states have (on average 1.6754385964912282) internal successors, (382), 234 states have internal predecessors, (382), 33 states have call successors, (33), 14 states have call predecessors, (33), 14 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) 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), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:33:58,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:58,862 INFO L93 Difference]: Finished difference Result 539 states and 865 transitions. [2023-12-22 02:33:58,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:33:58,864 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), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-22 02:33:58,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:58,871 INFO L225 Difference]: With dead ends: 539 [2023-12-22 02:33:58,872 INFO L226 Difference]: Without dead ends: 273 [2023-12-22 02:33:58,875 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 02:33:58,878 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 118 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:58,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 654 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:33:58,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-12-22 02:33:58,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2023-12-22 02:33:58,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 225 states have (on average 1.5555555555555556) internal successors, (350), 229 states have internal predecessors, (350), 33 states have call successors, (33), 14 states have call predecessors, (33), 13 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-22 02:33:58,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 414 transitions. [2023-12-22 02:33:58,930 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 414 transitions. Word has length 58 [2023-12-22 02:33:58,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:58,931 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 414 transitions. [2023-12-22 02:33:58,931 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), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:33:58,931 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 414 transitions. [2023-12-22 02:33:58,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:33:58,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:58,933 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 02:33:58,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-22 02:33:59,137 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 02:33:59,138 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:33:59,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:33:59,140 INFO L85 PathProgramCache]: Analyzing trace with hash -561245418, now seen corresponding path program 1 times [2023-12-22 02:33:59,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:33:59,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799570738] [2023-12-22 02:33:59,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:33:59,141 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 02:33:59,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:33:59,149 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 02:33:59,151 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 02:33:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:33:59,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 02:33:59,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:33:59,315 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 02:33:59,316 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:33:59,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:33:59,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799570738] [2023-12-22 02:33:59,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799570738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:33:59,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:33:59,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:33:59,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252061515] [2023-12-22 02:33:59,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:33:59,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:33:59,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:33:59,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:33:59,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:33:59,322 INFO L87 Difference]: Start difference. First operand 273 states and 414 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:33:59,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:33:59,913 INFO L93 Difference]: Finished difference Result 449 states and 667 transitions. [2023-12-22 02:33:59,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:33:59,914 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 02:33:59,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:33:59,917 INFO L225 Difference]: With dead ends: 449 [2023-12-22 02:33:59,917 INFO L226 Difference]: Without dead ends: 368 [2023-12-22 02:33:59,918 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 02:33:59,919 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 312 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:33:59,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 802 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:33:59,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-12-22 02:33:59,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 361. [2023-12-22 02:33:59,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 293 states have (on average 1.522184300341297) internal successors, (446), 299 states have internal predecessors, (446), 44 states have call successors, (44), 21 states have call predecessors, (44), 22 states have return successors, (47), 43 states have call predecessors, (47), 42 states have call successors, (47) [2023-12-22 02:33:59,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 537 transitions. [2023-12-22 02:33:59,941 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 537 transitions. Word has length 58 [2023-12-22 02:33:59,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:33:59,941 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 537 transitions. [2023-12-22 02:33:59,942 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 02:33:59,942 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 537 transitions. [2023-12-22 02:33:59,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:33:59,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:33:59,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:33:59,958 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 02:34:00,159 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 02:34:00,159 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:00,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:00,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1652407465, now seen corresponding path program 1 times [2023-12-22 02:34:00,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:00,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700877881] [2023-12-22 02:34:00,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:00,160 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 02:34:00,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:00,161 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 02:34:00,166 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 02:34:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:00,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:34:00,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:00,257 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 02:34:00,257 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:00,257 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:00,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700877881] [2023-12-22 02:34:00,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700877881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:00,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:00,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:34:00,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106888015] [2023-12-22 02:34:00,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:00,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:34:00,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:00,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:34:00,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:34:00,259 INFO L87 Difference]: Start difference. First operand 361 states and 537 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:34:00,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:00,757 INFO L93 Difference]: Finished difference Result 720 states and 1056 transitions. [2023-12-22 02:34:00,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:34:00,758 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 02:34:00,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:00,761 INFO L225 Difference]: With dead ends: 720 [2023-12-22 02:34:00,761 INFO L226 Difference]: Without dead ends: 556 [2023-12-22 02:34:00,762 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 02:34:00,762 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 304 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:00,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 806 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:34:00,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-12-22 02:34:00,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 548. [2023-12-22 02:34:00,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 436 states have (on average 1.4724770642201834) internal successors, (642), 450 states have internal predecessors, (642), 66 states have call successors, (66), 35 states have call predecessors, (66), 44 states have return successors, (89), 67 states have call predecessors, (89), 64 states have call successors, (89) [2023-12-22 02:34:00,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 797 transitions. [2023-12-22 02:34:00,800 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 797 transitions. Word has length 58 [2023-12-22 02:34:00,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:00,801 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 797 transitions. [2023-12-22 02:34:00,801 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 02:34:00,801 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 797 transitions. [2023-12-22 02:34:00,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:34:00,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:00,804 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 02:34:00,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-22 02:34:01,007 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 02:34:01,008 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:01,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:01,008 INFO L85 PathProgramCache]: Analyzing trace with hash 698567063, now seen corresponding path program 1 times [2023-12-22 02:34:01,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:01,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773300654] [2023-12-22 02:34:01,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:01,009 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 02:34:01,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:01,022 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 02:34:01,023 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 02:34:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:01,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:34:01,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:01,121 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 02:34:01,121 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:01,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:01,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773300654] [2023-12-22 02:34:01,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [773300654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:01,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:01,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:34:01,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009376059] [2023-12-22 02:34:01,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:01,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:34:01,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:01,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:34:01,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:34:01,124 INFO L87 Difference]: Start difference. First operand 548 states and 797 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 02:34:01,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:01,238 INFO L93 Difference]: Finished difference Result 903 states and 1294 transitions. [2023-12-22 02:34:01,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:34:01,239 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 02:34:01,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:01,241 INFO L225 Difference]: With dead ends: 903 [2023-12-22 02:34:01,241 INFO L226 Difference]: Without dead ends: 566 [2023-12-22 02:34:01,242 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 02:34:01,243 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 6 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:01,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1900 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:34:01,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-12-22 02:34:01,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 556. [2023-12-22 02:34:01,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 442 states have (on average 1.4615384615384615) internal successors, (646), 456 states have internal predecessors, (646), 66 states have call successors, (66), 35 states have call predecessors, (66), 46 states have return successors, (91), 69 states have call predecessors, (91), 64 states have call successors, (91) [2023-12-22 02:34:01,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 803 transitions. [2023-12-22 02:34:01,273 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 803 transitions. Word has length 58 [2023-12-22 02:34:01,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:01,273 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 803 transitions. [2023-12-22 02:34:01,273 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 02:34:01,273 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 803 transitions. [2023-12-22 02:34:01,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:34:01,275 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:01,275 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 02:34:01,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 02:34:01,495 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 02:34:01,495 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:01,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:01,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1545416235, now seen corresponding path program 1 times [2023-12-22 02:34:01,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:01,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181212145] [2023-12-22 02:34:01,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:01,496 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:34:01,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:01,498 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 02:34:01,502 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 (6)] Waiting until timeout for monitored process [2023-12-22 02:34:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:01,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:34:01,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:01,612 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 02:34:01,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:01,612 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:01,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181212145] [2023-12-22 02:34:01,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181212145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:01,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:01,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:34:01,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111709016] [2023-12-22 02:34:01,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:01,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:34:01,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:01,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:34:01,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:34:01,614 INFO L87 Difference]: Start difference. First operand 556 states and 803 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 02:34:01,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:01,726 INFO L93 Difference]: Finished difference Result 913 states and 1296 transitions. [2023-12-22 02:34:01,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:34:01,727 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 02:34:01,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:01,729 INFO L225 Difference]: With dead ends: 913 [2023-12-22 02:34:01,729 INFO L226 Difference]: Without dead ends: 568 [2023-12-22 02:34:01,730 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 02:34:01,731 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 3 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1905 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:01,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1905 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:34:01,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-12-22 02:34:01,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 564. [2023-12-22 02:34:01,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 448 states have (on average 1.4508928571428572) internal successors, (650), 462 states have internal predecessors, (650), 66 states have call successors, (66), 35 states have call predecessors, (66), 48 states have return successors, (93), 71 states have call predecessors, (93), 64 states have call successors, (93) [2023-12-22 02:34:01,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 809 transitions. [2023-12-22 02:34:01,761 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 809 transitions. Word has length 58 [2023-12-22 02:34:01,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:01,761 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 809 transitions. [2023-12-22 02:34:01,761 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 02:34:01,762 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 809 transitions. [2023-12-22 02:34:01,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:34:01,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:01,763 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 02:34:01,770 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 02:34:01,967 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 02:34:01,967 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:01,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:01,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1483376621, now seen corresponding path program 1 times [2023-12-22 02:34:01,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:01,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630598561] [2023-12-22 02:34:01,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:01,968 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 02:34:01,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:01,970 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 02:34:01,996 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 (7)] Waiting until timeout for monitored process [2023-12-22 02:34:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:02,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:02,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:02,077 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 02:34:02,077 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:02,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:02,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630598561] [2023-12-22 02:34:02,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [630598561] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:02,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:02,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:02,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205242323] [2023-12-22 02:34:02,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:02,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:34:02,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:02,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:34:02,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:34:02,079 INFO L87 Difference]: Start difference. First operand 564 states and 809 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-22 02:34:02,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:02,460 INFO L93 Difference]: Finished difference Result 1262 states and 1752 transitions. [2023-12-22 02:34:02,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:34:02,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2023-12-22 02:34:02,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:02,465 INFO L225 Difference]: With dead ends: 1262 [2023-12-22 02:34:02,465 INFO L226 Difference]: Without dead ends: 913 [2023-12-22 02:34:02,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:34:02,466 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 548 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:02,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 430 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:34:02,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2023-12-22 02:34:02,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 909. [2023-12-22 02:34:02,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 703 states have (on average 1.395448079658606) internal successors, (981), 732 states have internal predecessors, (981), 112 states have call successors, (112), 63 states have call predecessors, (112), 92 states have return successors, (178), 122 states have call predecessors, (178), 110 states have call successors, (178) [2023-12-22 02:34:02,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1271 transitions. [2023-12-22 02:34:02,507 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1271 transitions. Word has length 58 [2023-12-22 02:34:02,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:02,507 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1271 transitions. [2023-12-22 02:34:02,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-22 02:34:02,507 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1271 transitions. [2023-12-22 02:34:02,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-22 02:34:02,509 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:02,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:34:02,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 02:34:02,712 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 02:34:02,712 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:02,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:02,713 INFO L85 PathProgramCache]: Analyzing trace with hash -795793422, now seen corresponding path program 1 times [2023-12-22 02:34:02,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:02,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521473066] [2023-12-22 02:34:02,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:02,714 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 02:34:02,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:02,717 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 02:34:02,721 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 02:34:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:02,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:34:02,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:02,845 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 02:34:02,845 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:02,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:02,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521473066] [2023-12-22 02:34:02,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521473066] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:02,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:02,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:34:02,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037687530] [2023-12-22 02:34:02,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:02,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:34:02,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:02,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:34:02,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:34:02,847 INFO L87 Difference]: Start difference. First operand 909 states and 1271 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-22 02:34:02,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:02,937 INFO L93 Difference]: Finished difference Result 2223 states and 3042 transitions. [2023-12-22 02:34:02,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:34:02,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 59 [2023-12-22 02:34:02,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:02,944 INFO L225 Difference]: With dead ends: 2223 [2023-12-22 02:34:02,945 INFO L226 Difference]: Without dead ends: 1541 [2023-12-22 02:34:02,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:34:02,948 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 352 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:02,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 488 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:34:02,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2023-12-22 02:34:03,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1497. [2023-12-22 02:34:03,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1497 states, 1143 states have (on average 1.3499562554680664) internal successors, (1543), 1194 states have internal predecessors, (1543), 178 states have call successors, (178), 119 states have call predecessors, (178), 174 states have return successors, (292), 192 states have call predecessors, (292), 176 states have call successors, (292) [2023-12-22 02:34:03,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2013 transitions. [2023-12-22 02:34:03,052 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2013 transitions. Word has length 59 [2023-12-22 02:34:03,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:03,053 INFO L495 AbstractCegarLoop]: Abstraction has 1497 states and 2013 transitions. [2023-12-22 02:34:03,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-22 02:34:03,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2013 transitions. [2023-12-22 02:34:03,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-22 02:34:03,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:03,060 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 02:34:03,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-22 02:34:03,264 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 02:34:03,264 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:03,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:03,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1190009589, now seen corresponding path program 1 times [2023-12-22 02:34:03,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:03,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475183772] [2023-12-22 02:34:03,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:03,267 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 02:34:03,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:03,268 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 02:34:03,271 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 02:34:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:03,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:34:03,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:03,432 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 02:34:03,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:03,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:03,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475183772] [2023-12-22 02:34:03,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475183772] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:03,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:03,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:34:03,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906488472] [2023-12-22 02:34:03,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:03,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:34:03,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:03,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:34:03,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:34:03,434 INFO L87 Difference]: Start difference. First operand 1497 states and 2013 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 02:34:03,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:03,615 INFO L93 Difference]: Finished difference Result 3913 states and 5180 transitions. [2023-12-22 02:34:03,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:34:03,615 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 02:34:03,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:03,624 INFO L225 Difference]: With dead ends: 3913 [2023-12-22 02:34:03,624 INFO L226 Difference]: Without dead ends: 2615 [2023-12-22 02:34:03,627 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 02:34:03,628 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 62 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:03,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 732 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:34:03,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states. [2023-12-22 02:34:03,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 2583. [2023-12-22 02:34:03,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2583 states, 1961 states have (on average 1.3197348291687914) internal successors, (2588), 2033 states have internal predecessors, (2588), 298 states have call successors, (298), 231 states have call predecessors, (298), 322 states have return successors, (470), 323 states have call predecessors, (470), 296 states have call successors, (470) [2023-12-22 02:34:03,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 3356 transitions. [2023-12-22 02:34:03,774 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 3356 transitions. Word has length 60 [2023-12-22 02:34:03,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:03,774 INFO L495 AbstractCegarLoop]: Abstraction has 2583 states and 3356 transitions. [2023-12-22 02:34:03,774 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 02:34:03,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 3356 transitions. [2023-12-22 02:34:03,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 02:34:03,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:03,775 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 02:34:03,791 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 (9)] Ended with exit code 0 [2023-12-22 02:34:03,979 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 02:34:03,979 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:03,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:03,980 INFO L85 PathProgramCache]: Analyzing trace with hash -375507862, now seen corresponding path program 1 times [2023-12-22 02:34:03,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:03,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923883432] [2023-12-22 02:34:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:03,980 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 02:34:03,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:03,981 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 02:34:03,983 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 02:34:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:04,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:34:04,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:04,099 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 02:34:04,099 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:04,099 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:04,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923883432] [2023-12-22 02:34:04,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1923883432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:04,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:04,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:34:04,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736446591] [2023-12-22 02:34:04,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:04,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:34:04,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:04,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:34:04,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:34:04,101 INFO L87 Difference]: Start difference. First operand 2583 states and 3356 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 02:34:04,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:04,241 INFO L93 Difference]: Finished difference Result 5519 states and 7094 transitions. [2023-12-22 02:34:04,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:34:04,241 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 02:34:04,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:04,253 INFO L225 Difference]: With dead ends: 5519 [2023-12-22 02:34:04,253 INFO L226 Difference]: Without dead ends: 3143 [2023-12-22 02:34:04,258 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 02:34:04,260 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 347 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:04,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 488 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:34:04,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3143 states. [2023-12-22 02:34:04,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3143 to 3099. [2023-12-22 02:34:04,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3099 states, 2349 states have (on average 1.3026819923371646) internal successors, (3060), 2429 states have internal predecessors, (3060), 362 states have call successors, (362), 287 states have call predecessors, (362), 386 states have return successors, (553), 387 states have call predecessors, (553), 360 states have call successors, (553) [2023-12-22 02:34:04,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3099 states to 3099 states and 3975 transitions. [2023-12-22 02:34:04,446 INFO L78 Accepts]: Start accepts. Automaton has 3099 states and 3975 transitions. Word has length 66 [2023-12-22 02:34:04,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:04,447 INFO L495 AbstractCegarLoop]: Abstraction has 3099 states and 3975 transitions. [2023-12-22 02:34:04,447 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 02:34:04,447 INFO L276 IsEmpty]: Start isEmpty. Operand 3099 states and 3975 transitions. [2023-12-22 02:34:04,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-22 02:34:04,451 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:04,451 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 02:34:04,455 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 02:34:04,655 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 02:34:04,656 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:04,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:04,656 INFO L85 PathProgramCache]: Analyzing trace with hash 727736232, now seen corresponding path program 1 times [2023-12-22 02:34:04,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:04,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064430751] [2023-12-22 02:34:04,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:04,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:34:04,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:04,673 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 02:34:04,715 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 02:34:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:04,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:04,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:04,766 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 02:34:04,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:04,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:04,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064430751] [2023-12-22 02:34:04,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064430751] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:04,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:04,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:04,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933308260] [2023-12-22 02:34:04,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:04,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:34:04,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:04,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:34:04,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:34:04,769 INFO L87 Difference]: Start difference. First operand 3099 states and 3975 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 02:34:05,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:05,097 INFO L93 Difference]: Finished difference Result 3719 states and 4748 transitions. [2023-12-22 02:34:05,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:34:05,098 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 02:34:05,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:05,112 INFO L225 Difference]: With dead ends: 3719 [2023-12-22 02:34:05,112 INFO L226 Difference]: Without dead ends: 3716 [2023-12-22 02:34:05,113 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 02:34:05,114 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 753 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:05,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 471 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:34:05,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3716 states. [2023-12-22 02:34:05,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3716 to 3682. [2023-12-22 02:34:05,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3682 states, 2787 states have (on average 1.294940796555436) internal successors, (3609), 2881 states have internal predecessors, (3609), 427 states have call successors, (427), 343 states have call predecessors, (427), 466 states have return successors, (656), 462 states have call predecessors, (656), 426 states have call successors, (656) [2023-12-22 02:34:05,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3682 states to 3682 states and 4692 transitions. [2023-12-22 02:34:05,283 INFO L78 Accepts]: Start accepts. Automaton has 3682 states and 4692 transitions. Word has length 67 [2023-12-22 02:34:05,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:05,284 INFO L495 AbstractCegarLoop]: Abstraction has 3682 states and 4692 transitions. [2023-12-22 02:34:05,284 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 02:34:05,284 INFO L276 IsEmpty]: Start isEmpty. Operand 3682 states and 4692 transitions. [2023-12-22 02:34:05,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-22 02:34:05,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:05,285 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 02:34:05,299 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 02:34:05,489 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 02:34:05,490 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:05,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:05,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1084060788, now seen corresponding path program 1 times [2023-12-22 02:34:05,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:05,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521308959] [2023-12-22 02:34:05,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:05,491 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 02:34:05,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:05,493 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 02:34:05,523 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 02:34:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:05,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:34:05,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:05,788 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 02:34:05,789 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 02:34:05,880 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 02:34:05,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:05,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521308959] [2023-12-22 02:34:05,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521308959] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 02:34:05,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 02:34:05,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2023-12-22 02:34:05,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022130645] [2023-12-22 02:34:05,881 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 02:34:05,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 02:34:05,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:05,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 02:34:05,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:34:05,882 INFO L87 Difference]: Start difference. First operand 3682 states and 4692 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 02:34:06,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:06,566 INFO L93 Difference]: Finished difference Result 8221 states and 10448 transitions. [2023-12-22 02:34:06,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:34:06,567 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 02:34:06,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:06,595 INFO L225 Difference]: With dead ends: 8221 [2023-12-22 02:34:06,595 INFO L226 Difference]: Without dead ends: 8218 [2023-12-22 02:34:06,598 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 02:34:06,599 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 762 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:06,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 1952 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:34:06,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8218 states. [2023-12-22 02:34:07,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8218 to 6036. [2023-12-22 02:34:07,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6036 states, 4561 states have (on average 1.2911642183731638) internal successors, (5889), 4721 states have internal predecessors, (5889), 691 states have call successors, (691), 567 states have call predecessors, (691), 782 states have return successors, (1090), 752 states have call predecessors, (1090), 690 states have call successors, (1090) [2023-12-22 02:34:07,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6036 states to 6036 states and 7670 transitions. [2023-12-22 02:34:07,094 INFO L78 Accepts]: Start accepts. Automaton has 6036 states and 7670 transitions. Word has length 68 [2023-12-22 02:34:07,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:07,094 INFO L495 AbstractCegarLoop]: Abstraction has 6036 states and 7670 transitions. [2023-12-22 02:34:07,095 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 02:34:07,095 INFO L276 IsEmpty]: Start isEmpty. Operand 6036 states and 7670 transitions. [2023-12-22 02:34:07,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-22 02:34:07,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:07,096 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 02:34:07,111 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 02:34:07,300 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 02:34:07,300 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:07,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:07,301 INFO L85 PathProgramCache]: Analyzing trace with hash 278097192, now seen corresponding path program 2 times [2023-12-22 02:34:07,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:07,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541594131] [2023-12-22 02:34:07,301 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 02:34:07,302 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 02:34:07,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:07,303 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 02:34:07,332 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 02:34:07,382 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 02:34:07,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 02:34:07,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:34:07,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:07,392 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 02:34:07,392 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:07,392 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:07,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541594131] [2023-12-22 02:34:07,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541594131] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:07,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:07,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:34:07,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92810404] [2023-12-22 02:34:07,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:07,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:34:07,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:07,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:34:07,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:34:07,394 INFO L87 Difference]: Start difference. First operand 6036 states and 7670 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 02:34:07,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:07,670 INFO L93 Difference]: Finished difference Result 9007 states and 11526 transitions. [2023-12-22 02:34:07,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:34:07,671 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 02:34:07,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:07,691 INFO L225 Difference]: With dead ends: 9007 [2023-12-22 02:34:07,692 INFO L226 Difference]: Without dead ends: 3704 [2023-12-22 02:34:07,702 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 02:34:07,703 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 384 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:07,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 545 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:34:07,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2023-12-22 02:34:07,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3680. [2023-12-22 02:34:07,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 2789 states have (on average 1.277518823951237) internal successors, (3563), 2879 states have internal predecessors, (3563), 427 states have call successors, (427), 343 states have call predecessors, (427), 462 states have return successors, (624), 462 states have call predecessors, (624), 426 states have call successors, (624) [2023-12-22 02:34:07,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 4614 transitions. [2023-12-22 02:34:07,960 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 4614 transitions. Word has length 71 [2023-12-22 02:34:07,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:07,960 INFO L495 AbstractCegarLoop]: Abstraction has 3680 states and 4614 transitions. [2023-12-22 02:34:07,960 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 02:34:07,961 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 4614 transitions. [2023-12-22 02:34:07,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-22 02:34:07,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:07,962 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 02:34:07,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-22 02:34:08,166 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 02:34:08,166 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:08,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:08,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1078257801, now seen corresponding path program 1 times [2023-12-22 02:34:08,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:08,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [933055749] [2023-12-22 02:34:08,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:08,167 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 02:34:08,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:08,168 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 02:34:08,191 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 02:34:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:08,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:34:08,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:08,292 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 02:34:08,292 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:08,293 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:08,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [933055749] [2023-12-22 02:34:08,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [933055749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:08,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:08,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:34:08,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618658115] [2023-12-22 02:34:08,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:08,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:34:08,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:08,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:34:08,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:34:08,294 INFO L87 Difference]: Start difference. First operand 3680 states and 4614 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 02:34:08,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:08,611 INFO L93 Difference]: Finished difference Result 7453 states and 9331 transitions. [2023-12-22 02:34:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:34:08,612 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 02:34:08,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:08,628 INFO L225 Difference]: With dead ends: 7453 [2023-12-22 02:34:08,628 INFO L226 Difference]: Without dead ends: 5328 [2023-12-22 02:34:08,633 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 02:34:08,633 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 77 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:08,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 823 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:34:08,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5328 states. [2023-12-22 02:34:08,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5328 to 5328. [2023-12-22 02:34:08,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 3999 states have (on average 1.2593148287071767) internal successors, (5036), 4134 states have internal predecessors, (5036), 625 states have call successors, (625), 511 states have call predecessors, (625), 702 states have return successors, (948), 687 states have call predecessors, (948), 624 states have call successors, (948) [2023-12-22 02:34:08,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 6609 transitions. [2023-12-22 02:34:08,971 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 6609 transitions. Word has length 76 [2023-12-22 02:34:08,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:08,971 INFO L495 AbstractCegarLoop]: Abstraction has 5328 states and 6609 transitions. [2023-12-22 02:34:08,972 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 02:34:08,972 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 6609 transitions. [2023-12-22 02:34:08,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-22 02:34:08,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:08,974 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 02:34:08,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-22 02:34:09,178 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 02:34:09,178 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:09,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:09,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1936154931, now seen corresponding path program 1 times [2023-12-22 02:34:09,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:09,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912486104] [2023-12-22 02:34:09,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:09,179 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 02:34:09,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:09,180 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 02:34:09,185 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 02:34:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:09,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:09,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:09,328 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 02:34:09,328 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:09,328 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:09,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912486104] [2023-12-22 02:34:09,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912486104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:09,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:09,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:09,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423593155] [2023-12-22 02:34:09,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:09,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:34:09,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:09,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:34:09,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:34:09,330 INFO L87 Difference]: Start difference. First operand 5328 states and 6609 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 02:34:10,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:10,064 INFO L93 Difference]: Finished difference Result 10475 states and 12941 transitions. [2023-12-22 02:34:10,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:34:10,065 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 02:34:10,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:10,081 INFO L225 Difference]: With dead ends: 10475 [2023-12-22 02:34:10,082 INFO L226 Difference]: Without dead ends: 5358 [2023-12-22 02:34:10,091 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 02:34:10,092 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 530 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:10,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 413 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:34:10,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5358 states. [2023-12-22 02:34:10,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5358 to 5358. [2023-12-22 02:34:10,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5358 states, 4014 states have (on average 1.2419033383158944) internal successors, (4985), 4164 states have internal predecessors, (4985), 625 states have call successors, (625), 511 states have call predecessors, (625), 717 states have return successors, (948), 687 states have call predecessors, (948), 624 states have call successors, (948) [2023-12-22 02:34:10,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5358 states to 5358 states and 6558 transitions. [2023-12-22 02:34:10,495 INFO L78 Accepts]: Start accepts. Automaton has 5358 states and 6558 transitions. Word has length 85 [2023-12-22 02:34:10,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:10,495 INFO L495 AbstractCegarLoop]: Abstraction has 5358 states and 6558 transitions. [2023-12-22 02:34:10,495 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 02:34:10,496 INFO L276 IsEmpty]: Start isEmpty. Operand 5358 states and 6558 transitions. [2023-12-22 02:34:10,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-22 02:34:10,498 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:10,499 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 02:34:10,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-22 02:34:10,703 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 02:34:10,703 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:10,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:10,704 INFO L85 PathProgramCache]: Analyzing trace with hash 959321105, now seen corresponding path program 1 times [2023-12-22 02:34:10,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:10,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344493567] [2023-12-22 02:34:10,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:10,705 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 02:34:10,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:10,707 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 02:34:10,708 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 02:34:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:10,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:34:10,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:10,827 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 02:34:10,827 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:10,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:10,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [344493567] [2023-12-22 02:34:10,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [344493567] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:10,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:10,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:34:10,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584969036] [2023-12-22 02:34:10,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:10,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:34:10,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:10,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:34:10,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:34:10,829 INFO L87 Difference]: Start difference. First operand 5358 states and 6558 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 02:34:11,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:11,253 INFO L93 Difference]: Finished difference Result 10264 states and 12496 transitions. [2023-12-22 02:34:11,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:34:11,255 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 02:34:11,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:11,270 INFO L225 Difference]: With dead ends: 10264 [2023-12-22 02:34:11,270 INFO L226 Difference]: Without dead ends: 5107 [2023-12-22 02:34:11,280 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 02:34:11,281 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 95 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:11,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 819 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:34:11,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5107 states. [2023-12-22 02:34:11,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5107 to 5104. [2023-12-22 02:34:11,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5104 states, 3830 states have (on average 1.228981723237598) internal successors, (4707), 3974 states have internal predecessors, (4707), 587 states have call successors, (587), 483 states have call predecessors, (587), 685 states have return successors, (831), 649 states have call predecessors, (831), 586 states have call successors, (831) [2023-12-22 02:34:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5104 states to 5104 states and 6125 transitions. [2023-12-22 02:34:11,689 INFO L78 Accepts]: Start accepts. Automaton has 5104 states and 6125 transitions. Word has length 86 [2023-12-22 02:34:11,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:11,690 INFO L495 AbstractCegarLoop]: Abstraction has 5104 states and 6125 transitions. [2023-12-22 02:34:11,690 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 02:34:11,690 INFO L276 IsEmpty]: Start isEmpty. Operand 5104 states and 6125 transitions. [2023-12-22 02:34:11,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:11,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:11,696 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] [2023-12-22 02:34:11,702 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 02:34:11,899 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 02:34:11,900 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:11,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:11,900 INFO L85 PathProgramCache]: Analyzing trace with hash 774305924, now seen corresponding path program 1 times [2023-12-22 02:34:11,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:11,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789556848] [2023-12-22 02:34:11,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:11,901 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 02:34:11,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:11,911 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 02:34:11,942 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 02:34:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:12,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:34:12,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:12,028 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 02:34:12,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:12,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:12,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789556848] [2023-12-22 02:34:12,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [789556848] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:12,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:12,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:34:12,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688726103] [2023-12-22 02:34:12,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:12,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:34:12,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:12,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:34:12,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:34:12,030 INFO L87 Difference]: Start difference. First operand 5104 states and 6125 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:12,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:12,265 INFO L93 Difference]: Finished difference Result 5281 states and 6402 transitions. [2023-12-22 02:34:12,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:34:12,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:12,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:12,277 INFO L225 Difference]: With dead ends: 5281 [2023-12-22 02:34:12,278 INFO L226 Difference]: Without dead ends: 5104 [2023-12-22 02:34:12,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 02:34:12,280 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 281 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:12,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 489 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:34:12,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5104 states. [2023-12-22 02:34:12,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5104 to 5104. [2023-12-22 02:34:12,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5104 states, 3830 states have (on average 1.2287206266318538) internal successors, (4706), 3974 states have internal predecessors, (4706), 587 states have call successors, (587), 483 states have call predecessors, (587), 685 states have return successors, (831), 649 states have call predecessors, (831), 586 states have call successors, (831) [2023-12-22 02:34:12,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5104 states to 5104 states and 6124 transitions. [2023-12-22 02:34:12,714 INFO L78 Accepts]: Start accepts. Automaton has 5104 states and 6124 transitions. Word has length 91 [2023-12-22 02:34:12,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:12,714 INFO L495 AbstractCegarLoop]: Abstraction has 5104 states and 6124 transitions. [2023-12-22 02:34:12,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:12,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5104 states and 6124 transitions. [2023-12-22 02:34:12,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:12,716 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:12,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:34:12,739 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 (17)] Ended with exit code 0 [2023-12-22 02:34:12,920 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 02:34:12,920 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:12,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:12,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1832144002, now seen corresponding path program 1 times [2023-12-22 02:34:12,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:12,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971087217] [2023-12-22 02:34:12,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:12,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:34:12,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:12,922 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 02:34:12,953 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 02:34:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:13,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:13,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:13,056 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 02:34:13,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:13,056 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:13,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971087217] [2023-12-22 02:34:13,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971087217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:13,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:13,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:13,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385834014] [2023-12-22 02:34:13,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:13,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:34:13,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:13,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:34:13,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:34:13,058 INFO L87 Difference]: Start difference. First operand 5104 states and 6124 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:13,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:13,856 INFO L93 Difference]: Finished difference Result 5473 states and 6711 transitions. [2023-12-22 02:34:13,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:34:13,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:13,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:13,866 INFO L225 Difference]: With dead ends: 5473 [2023-12-22 02:34:13,866 INFO L226 Difference]: Without dead ends: 5299 [2023-12-22 02:34:13,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 02:34:13,867 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 678 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:13,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 867 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:34:13,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5299 states. [2023-12-22 02:34:14,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5299 to 5284. [2023-12-22 02:34:14,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5284 states, 3989 states have (on average 1.2436700927550766) internal successors, (4961), 4134 states have internal predecessors, (4961), 601 states have call successors, (601), 489 states have call predecessors, (601), 692 states have return successors, (846), 663 states have call predecessors, (846), 600 states have call successors, (846) [2023-12-22 02:34:14,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5284 states to 5284 states and 6408 transitions. [2023-12-22 02:34:14,144 INFO L78 Accepts]: Start accepts. Automaton has 5284 states and 6408 transitions. Word has length 91 [2023-12-22 02:34:14,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:14,144 INFO L495 AbstractCegarLoop]: Abstraction has 5284 states and 6408 transitions. [2023-12-22 02:34:14,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:14,144 INFO L276 IsEmpty]: Start isEmpty. Operand 5284 states and 6408 transitions. [2023-12-22 02:34:14,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:14,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:14,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:34:14,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-22 02:34:14,351 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 02:34:14,352 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:14,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:14,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1049554298, now seen corresponding path program 1 times [2023-12-22 02:34:14,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:14,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520309884] [2023-12-22 02:34:14,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:14,353 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:34:14,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:14,370 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 02:34:14,401 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 02:34:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:14,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:14,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:14,488 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 02:34:14,488 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:14,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:14,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520309884] [2023-12-22 02:34:14,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1520309884] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:14,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:14,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:14,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008462688] [2023-12-22 02:34:14,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:14,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:34:14,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:14,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:34:14,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:34:14,491 INFO L87 Difference]: Start difference. First operand 5284 states and 6408 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:15,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:15,061 INFO L93 Difference]: Finished difference Result 5638 states and 6971 transitions. [2023-12-22 02:34:15,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:34:15,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:15,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:15,073 INFO L225 Difference]: With dead ends: 5638 [2023-12-22 02:34:15,073 INFO L226 Difference]: Without dead ends: 5284 [2023-12-22 02:34:15,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 02:34:15,075 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 525 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:15,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 592 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:34:15,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5284 states. [2023-12-22 02:34:15,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5284 to 5284. [2023-12-22 02:34:15,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5284 states, 3989 states have (on average 1.2419152669842066) internal successors, (4954), 4134 states have internal predecessors, (4954), 601 states have call successors, (601), 489 states have call predecessors, (601), 692 states have return successors, (846), 663 states have call predecessors, (846), 600 states have call successors, (846) [2023-12-22 02:34:15,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5284 states to 5284 states and 6401 transitions. [2023-12-22 02:34:15,401 INFO L78 Accepts]: Start accepts. Automaton has 5284 states and 6401 transitions. Word has length 91 [2023-12-22 02:34:15,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:15,401 INFO L495 AbstractCegarLoop]: Abstraction has 5284 states and 6401 transitions. [2023-12-22 02:34:15,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:15,401 INFO L276 IsEmpty]: Start isEmpty. Operand 5284 states and 6401 transitions. [2023-12-22 02:34:15,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:15,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:15,403 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] [2023-12-22 02:34:15,416 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 02:34:15,606 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 02:34:15,607 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:15,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:15,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1687189110, now seen corresponding path program 1 times [2023-12-22 02:34:15,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:15,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321428715] [2023-12-22 02:34:15,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:15,608 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 02:34:15,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:15,609 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 02:34:15,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-22 02:34:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:15,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:15,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:15,748 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 02:34:15,748 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:15,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:15,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321428715] [2023-12-22 02:34:15,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321428715] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:15,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:15,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:15,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007274452] [2023-12-22 02:34:15,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:15,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:34:15,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:15,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:34:15,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:34:15,750 INFO L87 Difference]: Start difference. First operand 5284 states and 6401 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:16,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:16,344 INFO L93 Difference]: Finished difference Result 5638 states and 6957 transitions. [2023-12-22 02:34:16,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:34:16,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:16,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:16,355 INFO L225 Difference]: With dead ends: 5638 [2023-12-22 02:34:16,355 INFO L226 Difference]: Without dead ends: 5284 [2023-12-22 02:34:16,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 02:34:16,358 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 519 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:16,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 585 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:34:16,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5284 states. [2023-12-22 02:34:16,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5284 to 5284. [2023-12-22 02:34:16,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5284 states, 3989 states have (on average 1.2401604412133367) internal successors, (4947), 4134 states have internal predecessors, (4947), 601 states have call successors, (601), 489 states have call predecessors, (601), 692 states have return successors, (846), 663 states have call predecessors, (846), 600 states have call successors, (846) [2023-12-22 02:34:16,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5284 states to 5284 states and 6394 transitions. [2023-12-22 02:34:16,863 INFO L78 Accepts]: Start accepts. Automaton has 5284 states and 6394 transitions. Word has length 91 [2023-12-22 02:34:16,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:16,863 INFO L495 AbstractCegarLoop]: Abstraction has 5284 states and 6394 transitions. [2023-12-22 02:34:16,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:16,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5284 states and 6394 transitions. [2023-12-22 02:34:16,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:16,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:16,865 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] [2023-12-22 02:34:16,872 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 02:34:17,069 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 02:34:17,070 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:17,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:17,070 INFO L85 PathProgramCache]: Analyzing trace with hash -737926650, now seen corresponding path program 1 times [2023-12-22 02:34:17,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:17,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339197115] [2023-12-22 02:34:17,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:17,071 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 02:34:17,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:17,072 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 02:34:17,073 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 02:34:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:17,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:17,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:17,193 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 02:34:17,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:17,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:17,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339197115] [2023-12-22 02:34:17,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339197115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:17,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:17,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:17,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849474879] [2023-12-22 02:34:17,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:17,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:34:17,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:17,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:34:17,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:34:17,195 INFO L87 Difference]: Start difference. First operand 5284 states and 6394 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:17,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:17,866 INFO L93 Difference]: Finished difference Result 5638 states and 6943 transitions. [2023-12-22 02:34:17,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:34:17,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:17,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:17,876 INFO L225 Difference]: With dead ends: 5638 [2023-12-22 02:34:17,876 INFO L226 Difference]: Without dead ends: 5284 [2023-12-22 02:34:17,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 02:34:17,878 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 513 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:17,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 578 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:34:17,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5284 states. [2023-12-22 02:34:18,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5284 to 5284. [2023-12-22 02:34:18,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5284 states, 3989 states have (on average 1.2384056154424667) internal successors, (4940), 4134 states have internal predecessors, (4940), 601 states have call successors, (601), 489 states have call predecessors, (601), 692 states have return successors, (846), 663 states have call predecessors, (846), 600 states have call successors, (846) [2023-12-22 02:34:18,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5284 states to 5284 states and 6387 transitions. [2023-12-22 02:34:18,259 INFO L78 Accepts]: Start accepts. Automaton has 5284 states and 6387 transitions. Word has length 91 [2023-12-22 02:34:18,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:18,260 INFO L495 AbstractCegarLoop]: Abstraction has 5284 states and 6387 transitions. [2023-12-22 02:34:18,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:18,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5284 states and 6387 transitions. [2023-12-22 02:34:18,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:18,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:18,261 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] [2023-12-22 02:34:18,275 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 02:34:18,468 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 02:34:18,468 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:18,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:18,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1786546698, now seen corresponding path program 1 times [2023-12-22 02:34:18,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:18,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077516960] [2023-12-22 02:34:18,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:18,469 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 02:34:18,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:18,480 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 02:34:18,535 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 02:34:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:18,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:18,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:18,643 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 02:34:18,644 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:18,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:18,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077516960] [2023-12-22 02:34:18,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077516960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:18,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:18,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:18,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175287744] [2023-12-22 02:34:18,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:18,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:34:18,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:18,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:34:18,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:34:18,645 INFO L87 Difference]: Start difference. First operand 5284 states and 6387 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:19,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:19,314 INFO L93 Difference]: Finished difference Result 5638 states and 6929 transitions. [2023-12-22 02:34:19,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:34:19,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:19,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:19,325 INFO L225 Difference]: With dead ends: 5638 [2023-12-22 02:34:19,325 INFO L226 Difference]: Without dead ends: 5284 [2023-12-22 02:34:19,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 02:34:19,328 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 507 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:19,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 571 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:34:19,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5284 states. [2023-12-22 02:34:19,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5284 to 5284. [2023-12-22 02:34:19,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5284 states, 3989 states have (on average 1.2366507896715968) internal successors, (4933), 4134 states have internal predecessors, (4933), 601 states have call successors, (601), 489 states have call predecessors, (601), 692 states have return successors, (846), 663 states have call predecessors, (846), 600 states have call successors, (846) [2023-12-22 02:34:19,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5284 states to 5284 states and 6380 transitions. [2023-12-22 02:34:19,772 INFO L78 Accepts]: Start accepts. Automaton has 5284 states and 6380 transitions. Word has length 91 [2023-12-22 02:34:19,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:19,772 INFO L495 AbstractCegarLoop]: Abstraction has 5284 states and 6380 transitions. [2023-12-22 02:34:19,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:19,772 INFO L276 IsEmpty]: Start isEmpty. Operand 5284 states and 6380 transitions. [2023-12-22 02:34:19,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:19,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:19,773 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] [2023-12-22 02:34:19,794 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 02:34:19,977 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 02:34:19,977 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:19,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:19,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1729433990, now seen corresponding path program 1 times [2023-12-22 02:34:19,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:19,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934226457] [2023-12-22 02:34:19,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:19,978 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 02:34:19,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:19,979 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 02:34:20,011 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 02:34:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:20,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:20,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:20,098 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 02:34:20,099 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:20,099 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:20,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934226457] [2023-12-22 02:34:20,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934226457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:20,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:20,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:20,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935818967] [2023-12-22 02:34:20,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:20,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:34:20,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:20,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:34:20,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:34:20,100 INFO L87 Difference]: Start difference. First operand 5284 states and 6380 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:20,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:20,830 INFO L93 Difference]: Finished difference Result 5720 states and 7047 transitions. [2023-12-22 02:34:20,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:34:20,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:20,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:20,840 INFO L225 Difference]: With dead ends: 5720 [2023-12-22 02:34:20,840 INFO L226 Difference]: Without dead ends: 5366 [2023-12-22 02:34:20,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 02:34:20,843 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 552 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:20,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 565 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:34:20,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5366 states. [2023-12-22 02:34:21,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5366 to 5366. [2023-12-22 02:34:21,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5366 states, 4065 states have (on average 1.238868388683887) internal successors, (5036), 4210 states have internal predecessors, (5036), 603 states have call successors, (603), 493 states have call predecessors, (603), 696 states have return successors, (848), 665 states have call predecessors, (848), 602 states have call successors, (848) [2023-12-22 02:34:21,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 6487 transitions. [2023-12-22 02:34:21,272 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 6487 transitions. Word has length 91 [2023-12-22 02:34:21,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:21,272 INFO L495 AbstractCegarLoop]: Abstraction has 5366 states and 6487 transitions. [2023-12-22 02:34:21,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:21,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 6487 transitions. [2023-12-22 02:34:21,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:21,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:21,273 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] [2023-12-22 02:34:21,292 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 02:34:21,477 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 02:34:21,477 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:21,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:21,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1043354998, now seen corresponding path program 1 times [2023-12-22 02:34:21,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:21,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1603802199] [2023-12-22 02:34:21,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:21,479 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 02:34:21,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:21,480 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 02:34:21,497 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 02:34:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:21,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:21,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:21,610 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 02:34:21,611 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:21,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:21,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1603802199] [2023-12-22 02:34:21,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1603802199] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:21,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:21,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:21,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630552068] [2023-12-22 02:34:21,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:21,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:34:21,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:21,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:34:21,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:34:21,612 INFO L87 Difference]: Start difference. First operand 5366 states and 6487 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:22,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:22,484 INFO L93 Difference]: Finished difference Result 5884 states and 7261 transitions. [2023-12-22 02:34:22,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:34:22,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:22,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:22,500 INFO L225 Difference]: With dead ends: 5884 [2023-12-22 02:34:22,500 INFO L226 Difference]: Without dead ends: 5448 [2023-12-22 02:34:22,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 02:34:22,504 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 545 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:22,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 558 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:34:22,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5448 states. [2023-12-22 02:34:22,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5448 to 5448. [2023-12-22 02:34:22,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5448 states, 4141 states have (on average 1.2400386380101425) internal successors, (5135), 4286 states have internal predecessors, (5135), 605 states have call successors, (605), 497 states have call predecessors, (605), 700 states have return successors, (850), 667 states have call predecessors, (850), 604 states have call successors, (850) [2023-12-22 02:34:22,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5448 states to 5448 states and 6590 transitions. [2023-12-22 02:34:22,970 INFO L78 Accepts]: Start accepts. Automaton has 5448 states and 6590 transitions. Word has length 91 [2023-12-22 02:34:22,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:22,970 INFO L495 AbstractCegarLoop]: Abstraction has 5448 states and 6590 transitions. [2023-12-22 02:34:22,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:22,970 INFO L276 IsEmpty]: Start isEmpty. Operand 5448 states and 6590 transitions. [2023-12-22 02:34:22,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:22,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:22,972 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] [2023-12-22 02:34:22,979 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 02:34:23,176 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 02:34:23,177 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:23,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:23,177 INFO L85 PathProgramCache]: Analyzing trace with hash 872853351, now seen corresponding path program 1 times [2023-12-22 02:34:23,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:23,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485960960] [2023-12-22 02:34:23,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:23,178 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 02:34:23,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:23,179 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 02:34:23,180 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 02:34:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:23,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:23,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:23,290 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 02:34:23,290 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:23,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:23,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485960960] [2023-12-22 02:34:23,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485960960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:23,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:23,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:23,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396041854] [2023-12-22 02:34:23,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:23,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:34:23,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:23,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:34:23,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:34:23,292 INFO L87 Difference]: Start difference. First operand 5448 states and 6590 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:24,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:24,177 INFO L93 Difference]: Finished difference Result 6048 states and 7467 transitions. [2023-12-22 02:34:24,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:34:24,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:24,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:24,186 INFO L225 Difference]: With dead ends: 6048 [2023-12-22 02:34:24,186 INFO L226 Difference]: Without dead ends: 5530 [2023-12-22 02:34:24,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 02:34:24,188 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 539 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:24,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 551 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:34:24,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5530 states. [2023-12-22 02:34:24,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5530 to 5530. [2023-12-22 02:34:24,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5530 states, 4217 states have (on average 1.2402181645719705) internal successors, (5230), 4362 states have internal predecessors, (5230), 607 states have call successors, (607), 501 states have call predecessors, (607), 704 states have return successors, (852), 669 states have call predecessors, (852), 606 states have call successors, (852) [2023-12-22 02:34:24,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5530 states to 5530 states and 6689 transitions. [2023-12-22 02:34:24,760 INFO L78 Accepts]: Start accepts. Automaton has 5530 states and 6689 transitions. Word has length 91 [2023-12-22 02:34:24,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:24,761 INFO L495 AbstractCegarLoop]: Abstraction has 5530 states and 6689 transitions. [2023-12-22 02:34:24,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:24,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5530 states and 6689 transitions. [2023-12-22 02:34:24,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:24,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:24,763 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] [2023-12-22 02:34:24,767 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 (25)] Ended with exit code 0 [2023-12-22 02:34:24,967 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 02:34:24,967 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:24,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:24,967 INFO L85 PathProgramCache]: Analyzing trace with hash 802929003, now seen corresponding path program 1 times [2023-12-22 02:34:24,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:24,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615578193] [2023-12-22 02:34:24,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:24,968 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 02:34:24,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:24,969 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 02:34:24,971 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 02:34:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:25,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:25,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:25,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:34:25,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:25,083 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:25,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615578193] [2023-12-22 02:34:25,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615578193] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:25,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:25,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:25,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29216228] [2023-12-22 02:34:25,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:25,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:34:25,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:25,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:34:25,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:34:25,085 INFO L87 Difference]: Start difference. First operand 5530 states and 6689 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:25,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:25,882 INFO L93 Difference]: Finished difference Result 6212 states and 7665 transitions. [2023-12-22 02:34:25,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:34:25,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:25,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:25,889 INFO L225 Difference]: With dead ends: 6212 [2023-12-22 02:34:25,889 INFO L226 Difference]: Without dead ends: 5612 [2023-12-22 02:34:25,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 02:34:25,891 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 531 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:25,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 544 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:34:25,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5612 states. [2023-12-22 02:34:26,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5612 to 5612. [2023-12-22 02:34:26,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5612 states, 4293 states have (on average 1.239459585371535) internal successors, (5321), 4438 states have internal predecessors, (5321), 609 states have call successors, (609), 505 states have call predecessors, (609), 708 states have return successors, (854), 671 states have call predecessors, (854), 608 states have call successors, (854) [2023-12-22 02:34:26,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5612 states to 5612 states and 6784 transitions. [2023-12-22 02:34:26,452 INFO L78 Accepts]: Start accepts. Automaton has 5612 states and 6784 transitions. Word has length 91 [2023-12-22 02:34:26,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:26,452 INFO L495 AbstractCegarLoop]: Abstraction has 5612 states and 6784 transitions. [2023-12-22 02:34:26,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:26,453 INFO L276 IsEmpty]: Start isEmpty. Operand 5612 states and 6784 transitions. [2023-12-22 02:34:26,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:26,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:26,469 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] [2023-12-22 02:34:26,486 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 02:34:26,684 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 02:34:26,684 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:26,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:26,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1707624112, now seen corresponding path program 1 times [2023-12-22 02:34:26,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:26,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39654827] [2023-12-22 02:34:26,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:26,685 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 02:34:26,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:26,686 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 02:34:26,687 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 02:34:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:26,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:26,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:26,820 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 02:34:26,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:26,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:26,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39654827] [2023-12-22 02:34:26,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39654827] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:26,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:26,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:26,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138274288] [2023-12-22 02:34:26,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:26,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:34:26,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:26,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:34:26,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:34:26,823 INFO L87 Difference]: Start difference. First operand 5612 states and 6784 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:27,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:27,690 INFO L93 Difference]: Finished difference Result 6376 states and 7855 transitions. [2023-12-22 02:34:27,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:34:27,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:27,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:27,697 INFO L225 Difference]: With dead ends: 6376 [2023-12-22 02:34:27,698 INFO L226 Difference]: Without dead ends: 5694 [2023-12-22 02:34:27,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 02:34:27,699 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 524 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:27,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 537 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:34:27,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5694 states. [2023-12-22 02:34:28,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5694 to 5694. [2023-12-22 02:34:28,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5694 states, 4369 states have (on average 1.2378118562600138) internal successors, (5408), 4514 states have internal predecessors, (5408), 611 states have call successors, (611), 509 states have call predecessors, (611), 712 states have return successors, (856), 673 states have call predecessors, (856), 610 states have call successors, (856) [2023-12-22 02:34:28,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5694 states to 5694 states and 6875 transitions. [2023-12-22 02:34:28,233 INFO L78 Accepts]: Start accepts. Automaton has 5694 states and 6875 transitions. Word has length 91 [2023-12-22 02:34:28,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:28,233 INFO L495 AbstractCegarLoop]: Abstraction has 5694 states and 6875 transitions. [2023-12-22 02:34:28,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:28,234 INFO L276 IsEmpty]: Start isEmpty. Operand 5694 states and 6875 transitions. [2023-12-22 02:34:28,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:28,235 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:28,235 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] [2023-12-22 02:34:28,239 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 02:34:28,441 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 02:34:28,442 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:28,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:28,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1018488020, now seen corresponding path program 1 times [2023-12-22 02:34:28,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:28,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862804163] [2023-12-22 02:34:28,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:28,443 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 02:34:28,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:28,444 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 02:34:28,445 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 02:34:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:28,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:28,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:28,550 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 02:34:28,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:28,551 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:28,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862804163] [2023-12-22 02:34:28,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862804163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:28,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:28,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:28,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085262964] [2023-12-22 02:34:28,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:28,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:34:28,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:28,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:34:28,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:34:28,552 INFO L87 Difference]: Start difference. First operand 5694 states and 6875 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:29,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:29,116 INFO L93 Difference]: Finished difference Result 6525 states and 8016 transitions. [2023-12-22 02:34:29,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:34:29,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:29,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:29,125 INFO L225 Difference]: With dead ends: 6525 [2023-12-22 02:34:29,125 INFO L226 Difference]: Without dead ends: 5762 [2023-12-22 02:34:29,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 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 02:34:29,128 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 47 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:29,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1044 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:34:29,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5762 states. [2023-12-22 02:34:29,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5762 to 5698. [2023-12-22 02:34:29,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5698 states, 4373 states have (on average 1.2353075691744797) internal successors, (5402), 4518 states have internal predecessors, (5402), 611 states have call successors, (611), 509 states have call predecessors, (611), 712 states have return successors, (856), 673 states have call predecessors, (856), 610 states have call successors, (856) [2023-12-22 02:34:29,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5698 states to 5698 states and 6869 transitions. [2023-12-22 02:34:29,656 INFO L78 Accepts]: Start accepts. Automaton has 5698 states and 6869 transitions. Word has length 91 [2023-12-22 02:34:29,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:29,656 INFO L495 AbstractCegarLoop]: Abstraction has 5698 states and 6869 transitions. [2023-12-22 02:34:29,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:29,657 INFO L276 IsEmpty]: Start isEmpty. Operand 5698 states and 6869 transitions. [2023-12-22 02:34:29,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:29,658 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:29,658 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] [2023-12-22 02:34:29,664 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 02:34:29,862 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 02:34:29,862 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:29,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:29,863 INFO L85 PathProgramCache]: Analyzing trace with hash -584758934, now seen corresponding path program 1 times [2023-12-22 02:34:29,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:29,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388316102] [2023-12-22 02:34:29,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:29,863 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 02:34:29,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:29,865 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 02:34:29,866 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 (29)] Waiting until timeout for monitored process [2023-12-22 02:34:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:29,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:29,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:29,954 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 02:34:29,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:29,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:29,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388316102] [2023-12-22 02:34:29,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388316102] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:29,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:29,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:29,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561083528] [2023-12-22 02:34:29,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:29,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:34:29,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:29,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:34:29,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:34:29,955 INFO L87 Difference]: Start difference. First operand 5698 states and 6869 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:30,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:30,522 INFO L93 Difference]: Finished difference Result 6521 states and 7988 transitions. [2023-12-22 02:34:30,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:34:30,523 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:30,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:30,532 INFO L225 Difference]: With dead ends: 6521 [2023-12-22 02:34:30,532 INFO L226 Difference]: Without dead ends: 5754 [2023-12-22 02:34:30,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 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 02:34:30,535 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 38 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:30,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1048 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:34:30,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5754 states. [2023-12-22 02:34:31,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5754 to 5702. [2023-12-22 02:34:31,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5702 states, 4377 states have (on average 1.2328078592643363) internal successors, (5396), 4522 states have internal predecessors, (5396), 611 states have call successors, (611), 509 states have call predecessors, (611), 712 states have return successors, (856), 673 states have call predecessors, (856), 610 states have call successors, (856) [2023-12-22 02:34:31,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5702 states to 5702 states and 6863 transitions. [2023-12-22 02:34:31,068 INFO L78 Accepts]: Start accepts. Automaton has 5702 states and 6863 transitions. Word has length 91 [2023-12-22 02:34:31,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:31,068 INFO L495 AbstractCegarLoop]: Abstraction has 5702 states and 6863 transitions. [2023-12-22 02:34:31,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:31,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5702 states and 6863 transitions. [2023-12-22 02:34:31,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:31,070 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:31,070 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] [2023-12-22 02:34:31,073 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 (29)] Ended with exit code 0 [2023-12-22 02:34:31,273 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 02:34:31,273 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:31,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:31,274 INFO L85 PathProgramCache]: Analyzing trace with hash -140858260, now seen corresponding path program 1 times [2023-12-22 02:34:31,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:31,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69317800] [2023-12-22 02:34:31,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:31,275 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 02:34:31,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:31,276 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 02:34:31,304 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 02:34:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:31,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:31,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:31,359 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 02:34:31,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:31,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:31,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69317800] [2023-12-22 02:34:31,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69317800] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:31,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:31,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:31,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971331384] [2023-12-22 02:34:31,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:31,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:34:31,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:31,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:34:31,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:34:31,361 INFO L87 Difference]: Start difference. First operand 5702 states and 6863 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:31,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:31,902 INFO L93 Difference]: Finished difference Result 6517 states and 7960 transitions. [2023-12-22 02:34:31,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:34:31,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:31,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:31,911 INFO L225 Difference]: With dead ends: 6517 [2023-12-22 02:34:31,911 INFO L226 Difference]: Without dead ends: 5746 [2023-12-22 02:34:31,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 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 02:34:31,913 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 29 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:31,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1046 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:34:31,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5746 states. [2023-12-22 02:34:32,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5746 to 5706. [2023-12-22 02:34:32,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5706 states, 4381 states have (on average 1.2303127139922392) internal successors, (5390), 4526 states have internal predecessors, (5390), 611 states have call successors, (611), 509 states have call predecessors, (611), 712 states have return successors, (856), 673 states have call predecessors, (856), 610 states have call successors, (856) [2023-12-22 02:34:32,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5706 states to 5706 states and 6857 transitions. [2023-12-22 02:34:32,445 INFO L78 Accepts]: Start accepts. Automaton has 5706 states and 6857 transitions. Word has length 91 [2023-12-22 02:34:32,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:32,445 INFO L495 AbstractCegarLoop]: Abstraction has 5706 states and 6857 transitions. [2023-12-22 02:34:32,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:32,446 INFO L276 IsEmpty]: Start isEmpty. Operand 5706 states and 6857 transitions. [2023-12-22 02:34:32,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:32,447 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:32,447 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] [2023-12-22 02:34:32,451 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 02:34:32,650 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 02:34:32,651 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:32,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:32,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1798303786, now seen corresponding path program 1 times [2023-12-22 02:34:32,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:32,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97777201] [2023-12-22 02:34:32,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:32,652 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 02:34:32,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:32,653 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 02:34:32,654 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 02:34:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:32,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:34:32,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:32,783 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 02:34:32,783 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:32,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:32,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97777201] [2023-12-22 02:34:32,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97777201] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:32,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:32,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:34:32,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788408527] [2023-12-22 02:34:32,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:32,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:34:32,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:32,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:34:32,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:34:32,784 INFO L87 Difference]: Start difference. First operand 5706 states and 6857 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:33,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:33,364 INFO L93 Difference]: Finished difference Result 7155 states and 8751 transitions. [2023-12-22 02:34:33,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:34:33,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:33,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:33,373 INFO L225 Difference]: With dead ends: 7155 [2023-12-22 02:34:33,373 INFO L226 Difference]: Without dead ends: 6380 [2023-12-22 02:34:33,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 02:34:33,375 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 326 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:33,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 607 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:34:33,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6380 states. [2023-12-22 02:34:33,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6380 to 6376. [2023-12-22 02:34:33,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6376 states, 4987 states have (on average 1.2374172849408462) internal successors, (6171), 5133 states have internal predecessors, (6171), 646 states have call successors, (646), 537 states have call predecessors, (646), 741 states have return successors, (892), 708 states have call predecessors, (892), 645 states have call successors, (892) [2023-12-22 02:34:33,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6376 states to 6376 states and 7709 transitions. [2023-12-22 02:34:33,946 INFO L78 Accepts]: Start accepts. Automaton has 6376 states and 7709 transitions. Word has length 91 [2023-12-22 02:34:33,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:33,946 INFO L495 AbstractCegarLoop]: Abstraction has 6376 states and 7709 transitions. [2023-12-22 02:34:33,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:33,946 INFO L276 IsEmpty]: Start isEmpty. Operand 6376 states and 7709 transitions. [2023-12-22 02:34:33,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:33,947 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:33,947 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] [2023-12-22 02:34:33,951 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 02:34:34,151 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 02:34:34,151 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:34,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:34,152 INFO L85 PathProgramCache]: Analyzing trace with hash 490299017, now seen corresponding path program 1 times [2023-12-22 02:34:34,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:34,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919904349] [2023-12-22 02:34:34,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:34,152 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 02:34:34,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:34,168 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 02:34:34,169 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 02:34:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:34,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:34,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:34,276 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 02:34:34,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:34,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:34,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919904349] [2023-12-22 02:34:34,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919904349] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:34,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:34,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:34,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704368638] [2023-12-22 02:34:34,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:34,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:34:34,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:34,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:34:34,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:34:34,278 INFO L87 Difference]: Start difference. First operand 6376 states and 7709 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:34,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:34,866 INFO L93 Difference]: Finished difference Result 8013 states and 9874 transitions. [2023-12-22 02:34:34,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:34:34,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:34,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:34,898 INFO L225 Difference]: With dead ends: 8013 [2023-12-22 02:34:34,898 INFO L226 Difference]: Without dead ends: 6568 [2023-12-22 02:34:34,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 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 02:34:34,902 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 20 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:34,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1056 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:34:34,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6568 states. [2023-12-22 02:34:35,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6568 to 6400. [2023-12-22 02:34:35,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6400 states, 5011 states have (on average 1.2342845739373378) internal successors, (6185), 5157 states have internal predecessors, (6185), 646 states have call successors, (646), 537 states have call predecessors, (646), 741 states have return successors, (892), 708 states have call predecessors, (892), 645 states have call successors, (892) [2023-12-22 02:34:35,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6400 states to 6400 states and 7723 transitions. [2023-12-22 02:34:35,498 INFO L78 Accepts]: Start accepts. Automaton has 6400 states and 7723 transitions. Word has length 91 [2023-12-22 02:34:35,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:35,499 INFO L495 AbstractCegarLoop]: Abstraction has 6400 states and 7723 transitions. [2023-12-22 02:34:35,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:35,499 INFO L276 IsEmpty]: Start isEmpty. Operand 6400 states and 7723 transitions. [2023-12-22 02:34:35,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:35,500 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:35,500 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] [2023-12-22 02:34:35,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-22 02:34:35,703 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 02:34:35,704 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:35,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:35,704 INFO L85 PathProgramCache]: Analyzing trace with hash -407094261, now seen corresponding path program 1 times [2023-12-22 02:34:35,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:35,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291992139] [2023-12-22 02:34:35,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:35,705 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 02:34:35,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:35,717 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 02:34:35,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-22 02:34:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:35,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:35,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:35,803 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 02:34:35,803 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:35,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:35,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291992139] [2023-12-22 02:34:35,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1291992139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:35,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:35,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:35,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539083608] [2023-12-22 02:34:35,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:35,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:34:35,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:35,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:34:35,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:34:35,805 INFO L87 Difference]: Start difference. First operand 6400 states and 7723 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:36,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:36,418 INFO L93 Difference]: Finished difference Result 7889 states and 9669 transitions. [2023-12-22 02:34:36,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:34:36,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:36,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:36,430 INFO L225 Difference]: With dead ends: 7889 [2023-12-22 02:34:36,430 INFO L226 Difference]: Without dead ends: 6420 [2023-12-22 02:34:36,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 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 02:34:36,433 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 11 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:36,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1047 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:34:36,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6420 states. [2023-12-22 02:34:37,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6420 to 6404. [2023-12-22 02:34:37,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6404 states, 5015 states have (on average 1.230109670987039) internal successors, (6169), 5161 states have internal predecessors, (6169), 646 states have call successors, (646), 537 states have call predecessors, (646), 741 states have return successors, (892), 708 states have call predecessors, (892), 645 states have call successors, (892) [2023-12-22 02:34:37,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6404 states to 6404 states and 7707 transitions. [2023-12-22 02:34:37,087 INFO L78 Accepts]: Start accepts. Automaton has 6404 states and 7707 transitions. Word has length 91 [2023-12-22 02:34:37,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:37,087 INFO L495 AbstractCegarLoop]: Abstraction has 6404 states and 7707 transitions. [2023-12-22 02:34:37,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:37,087 INFO L276 IsEmpty]: Start isEmpty. Operand 6404 states and 7707 transitions. [2023-12-22 02:34:37,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:37,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:37,090 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] [2023-12-22 02:34:37,094 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 02:34:37,294 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 02:34:37,294 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:37,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:37,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1436453559, now seen corresponding path program 1 times [2023-12-22 02:34:37,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:37,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193731774] [2023-12-22 02:34:37,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:37,296 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 02:34:37,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:37,297 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 02:34:37,298 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 02:34:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:37,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:34:37,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:37,498 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 02:34:37,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:37,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:37,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193731774] [2023-12-22 02:34:37,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193731774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:37,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:37,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:37,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364267855] [2023-12-22 02:34:37,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:37,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:34:37,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:37,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:34:37,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:34:37,500 INFO L87 Difference]: Start difference. First operand 6404 states and 7707 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:38,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:38,365 INFO L93 Difference]: Finished difference Result 7878 states and 9574 transitions. [2023-12-22 02:34:38,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:34:38,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:38,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:38,381 INFO L225 Difference]: With dead ends: 7878 [2023-12-22 02:34:38,381 INFO L226 Difference]: Without dead ends: 6404 [2023-12-22 02:34:38,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 02:34:38,386 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 436 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:38,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 529 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:34:38,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6404 states. [2023-12-22 02:34:38,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6404 to 6404. [2023-12-22 02:34:38,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6404 states, 5015 states have (on average 1.2273180458624127) internal successors, (6155), 5161 states have internal predecessors, (6155), 646 states have call successors, (646), 537 states have call predecessors, (646), 741 states have return successors, (892), 708 states have call predecessors, (892), 645 states have call successors, (892) [2023-12-22 02:34:39,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6404 states to 6404 states and 7693 transitions. [2023-12-22 02:34:39,005 INFO L78 Accepts]: Start accepts. Automaton has 6404 states and 7693 transitions. Word has length 91 [2023-12-22 02:34:39,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:39,005 INFO L495 AbstractCegarLoop]: Abstraction has 6404 states and 7693 transitions. [2023-12-22 02:34:39,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:39,005 INFO L276 IsEmpty]: Start isEmpty. Operand 6404 states and 7693 transitions. [2023-12-22 02:34:39,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:39,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:39,007 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] [2023-12-22 02:34:39,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-22 02:34:39,212 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 02:34:39,212 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:39,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:39,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1945926649, now seen corresponding path program 1 times [2023-12-22 02:34:39,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:39,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851604205] [2023-12-22 02:34:39,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:39,213 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 02:34:39,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:39,215 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 02:34:39,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-22 02:34:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:39,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:34:39,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:39,404 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 02:34:39,404 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:39,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:39,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851604205] [2023-12-22 02:34:39,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1851604205] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:39,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:39,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:39,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687162039] [2023-12-22 02:34:39,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:39,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:34:39,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:39,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:34:39,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:34:39,406 INFO L87 Difference]: Start difference. First operand 6404 states and 7693 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:40,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:40,376 INFO L93 Difference]: Finished difference Result 8040 states and 9751 transitions. [2023-12-22 02:34:40,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:34:40,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2023-12-22 02:34:40,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:40,389 INFO L225 Difference]: With dead ends: 8040 [2023-12-22 02:34:40,389 INFO L226 Difference]: Without dead ends: 6566 [2023-12-22 02:34:40,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 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 02:34:40,392 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 484 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:40,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 524 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:34:40,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6566 states. [2023-12-22 02:34:41,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6566 to 6534. [2023-12-22 02:34:41,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6534 states, 5141 states have (on average 1.2201906243921417) internal successors, (6273), 5287 states have internal predecessors, (6273), 646 states have call successors, (646), 541 states have call predecessors, (646), 745 states have return successors, (892), 708 states have call predecessors, (892), 645 states have call successors, (892) [2023-12-22 02:34:41,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6534 states to 6534 states and 7811 transitions. [2023-12-22 02:34:41,057 INFO L78 Accepts]: Start accepts. Automaton has 6534 states and 7811 transitions. Word has length 91 [2023-12-22 02:34:41,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:41,058 INFO L495 AbstractCegarLoop]: Abstraction has 6534 states and 7811 transitions. [2023-12-22 02:34:41,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:34:41,058 INFO L276 IsEmpty]: Start isEmpty. Operand 6534 states and 7811 transitions. [2023-12-22 02:34:41,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 02:34:41,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:41,059 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] [2023-12-22 02:34:41,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2023-12-22 02:34:41,263 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 02:34:41,264 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:41,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:41,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1531392197, now seen corresponding path program 1 times [2023-12-22 02:34:41,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:41,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450762330] [2023-12-22 02:34:41,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:41,265 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 02:34:41,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:41,266 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 02:34:41,267 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 02:34:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:41,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:34:41,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:41,423 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 02:34:41,423 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:41,423 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:41,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450762330] [2023-12-22 02:34:41,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1450762330] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:41,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:41,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:34:41,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965163436] [2023-12-22 02:34:41,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:41,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:34:41,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:41,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:34:41,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:34:41,424 INFO L87 Difference]: Start difference. First operand 6534 states and 7811 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-22 02:34:42,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:42,161 INFO L93 Difference]: Finished difference Result 9691 states and 11711 transitions. [2023-12-22 02:34:42,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:34:42,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 91 [2023-12-22 02:34:42,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:42,177 INFO L225 Difference]: With dead ends: 9691 [2023-12-22 02:34:42,177 INFO L226 Difference]: Without dead ends: 8088 [2023-12-22 02:34:42,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 02:34:42,181 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 278 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:42,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 551 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:34:42,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8088 states. [2023-12-22 02:34:43,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8088 to 8084. [2023-12-22 02:34:43,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8084 states, 6551 states have (on average 1.2182872843840635) internal successors, (7981), 6703 states have internal predecessors, (7981), 720 states have call successors, (720), 605 states have call predecessors, (720), 811 states have return successors, (968), 778 states have call predecessors, (968), 719 states have call successors, (968) [2023-12-22 02:34:43,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8084 states to 8084 states and 9669 transitions. [2023-12-22 02:34:43,037 INFO L78 Accepts]: Start accepts. Automaton has 8084 states and 9669 transitions. Word has length 91 [2023-12-22 02:34:43,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:43,037 INFO L495 AbstractCegarLoop]: Abstraction has 8084 states and 9669 transitions. [2023-12-22 02:34:43,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-22 02:34:43,037 INFO L276 IsEmpty]: Start isEmpty. Operand 8084 states and 9669 transitions. [2023-12-22 02:34:43,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-22 02:34:43,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:43,042 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:34:43,046 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 (36)] Ended with exit code 0 [2023-12-22 02:34:43,246 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 02:34:43,246 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:43,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:43,247 INFO L85 PathProgramCache]: Analyzing trace with hash 545930444, now seen corresponding path program 1 times [2023-12-22 02:34:43,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:43,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992145006] [2023-12-22 02:34:43,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:43,247 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 02:34:43,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:43,248 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 02:34:43,276 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 02:34:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:43,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:34:43,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:43,372 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-12-22 02:34:43,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:43,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:43,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992145006] [2023-12-22 02:34:43,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992145006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:43,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:43,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:43,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160719500] [2023-12-22 02:34:43,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:43,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:34:43,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:43,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:34:43,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:34:43,373 INFO L87 Difference]: Start difference. First operand 8084 states and 9669 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 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 02:34:44,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:44,809 INFO L93 Difference]: Finished difference Result 15335 states and 18355 transitions. [2023-12-22 02:34:44,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:34:44,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 145 [2023-12-22 02:34:44,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:44,828 INFO L225 Difference]: With dead ends: 15335 [2023-12-22 02:34:44,828 INFO L226 Difference]: Without dead ends: 10227 [2023-12-22 02:34:44,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-22 02:34:44,836 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 513 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:44,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 544 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:34:44,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10227 states. [2023-12-22 02:34:45,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10227 to 9907. [2023-12-22 02:34:45,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9907 states, 7885 states have (on average 1.2182625237793279) internal successors, (9606), 8073 states have internal predecessors, (9606), 940 states have call successors, (940), 794 states have call predecessors, (940), 1080 states have return successors, (1262), 1041 states have call predecessors, (1262), 939 states have call successors, (1262) [2023-12-22 02:34:45,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9907 states to 9907 states and 11808 transitions. [2023-12-22 02:34:45,835 INFO L78 Accepts]: Start accepts. Automaton has 9907 states and 11808 transitions. Word has length 145 [2023-12-22 02:34:45,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:45,835 INFO L495 AbstractCegarLoop]: Abstraction has 9907 states and 11808 transitions. [2023-12-22 02:34:45,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 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 02:34:45,835 INFO L276 IsEmpty]: Start isEmpty. Operand 9907 states and 11808 transitions. [2023-12-22 02:34:45,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-22 02:34:45,838 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:45,838 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:34:45,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2023-12-22 02:34:46,043 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 02:34:46,044 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:46,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:46,044 INFO L85 PathProgramCache]: Analyzing trace with hash -229267839, now seen corresponding path program 1 times [2023-12-22 02:34:46,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:46,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829046115] [2023-12-22 02:34:46,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:46,045 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 02:34:46,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:46,046 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 02:34:46,048 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 02:34:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:46,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:34:46,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:46,235 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-22 02:34:46,235 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:46,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:46,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829046115] [2023-12-22 02:34:46,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1829046115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:46,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:46,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:34:46,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323183658] [2023-12-22 02:34:46,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:46,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:34:46,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:46,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:34:46,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:34:46,237 INFO L87 Difference]: Start difference. First operand 9907 states and 11808 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:34:47,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:47,340 INFO L93 Difference]: Finished difference Result 15784 states and 19005 transitions. [2023-12-22 02:34:47,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:34:47,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 147 [2023-12-22 02:34:47,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:47,364 INFO L225 Difference]: With dead ends: 15784 [2023-12-22 02:34:47,364 INFO L226 Difference]: Without dead ends: 12631 [2023-12-22 02:34:47,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 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 02:34:47,370 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 272 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:47,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 591 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:34:47,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12631 states. [2023-12-22 02:34:48,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12631 to 12621. [2023-12-22 02:34:48,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12621 states, 10351 states have (on average 1.214761858757608) internal successors, (12574), 10547 states have internal predecessors, (12574), 1072 states have call successors, (1072), 906 states have call predecessors, (1072), 1196 states have return successors, (1398), 1169 states have call predecessors, (1398), 1071 states have call successors, (1398) [2023-12-22 02:34:48,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12621 states to 12621 states and 15044 transitions. [2023-12-22 02:34:48,613 INFO L78 Accepts]: Start accepts. Automaton has 12621 states and 15044 transitions. Word has length 147 [2023-12-22 02:34:48,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:48,613 INFO L495 AbstractCegarLoop]: Abstraction has 12621 states and 15044 transitions. [2023-12-22 02:34:48,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:34:48,615 INFO L276 IsEmpty]: Start isEmpty. Operand 12621 states and 15044 transitions. [2023-12-22 02:34:48,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-22 02:34:48,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:48,627 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:34:48,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2023-12-22 02:34:48,828 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 02:34:48,828 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:48,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:48,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1982274018, now seen corresponding path program 1 times [2023-12-22 02:34:48,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:48,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [951333250] [2023-12-22 02:34:48,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:48,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:34:48,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:48,843 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 02:34:48,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-22 02:34:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:48,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:34:48,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:49,088 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-22 02:34:49,089 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:49,089 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:49,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [951333250] [2023-12-22 02:34:49,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [951333250] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:49,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:49,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:49,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437553418] [2023-12-22 02:34:49,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:49,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:34:49,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:49,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:34:49,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:34:49,090 INFO L87 Difference]: Start difference. First operand 12621 states and 15044 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:34:50,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:50,780 INFO L93 Difference]: Finished difference Result 24101 states and 28868 transitions. [2023-12-22 02:34:50,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:34:50,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 147 [2023-12-22 02:34:50,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:50,811 INFO L225 Difference]: With dead ends: 24101 [2023-12-22 02:34:50,811 INFO L226 Difference]: Without dead ends: 18235 [2023-12-22 02:34:50,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 145 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 02:34:50,817 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 457 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:50,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 735 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:34:50,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18235 states. [2023-12-22 02:34:52,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18235 to 18233. [2023-12-22 02:34:52,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18233 states, 15448 states have (on average 1.208052822371828) internal successors, (18662), 15669 states have internal predecessors, (18662), 1339 states have call successors, (1339), 1130 states have call predecessors, (1339), 1444 states have return successors, (1737), 1436 states have call predecessors, (1737), 1338 states have call successors, (1737) [2023-12-22 02:34:52,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18233 states to 18233 states and 21738 transitions. [2023-12-22 02:34:52,285 INFO L78 Accepts]: Start accepts. Automaton has 18233 states and 21738 transitions. Word has length 147 [2023-12-22 02:34:52,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:52,285 INFO L495 AbstractCegarLoop]: Abstraction has 18233 states and 21738 transitions. [2023-12-22 02:34:52,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:34:52,285 INFO L276 IsEmpty]: Start isEmpty. Operand 18233 states and 21738 transitions. [2023-12-22 02:34:52,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-22 02:34:52,291 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:52,291 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:34:52,296 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 02:34:52,495 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 02:34:52,495 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:52,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:52,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1902082912, now seen corresponding path program 1 times [2023-12-22 02:34:52,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:52,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111986350] [2023-12-22 02:34:52,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:52,496 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:34:52,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:52,497 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 02:34:52,499 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 02:34:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:52,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:34:52,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:52,600 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-22 02:34:52,600 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:52,600 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:52,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111986350] [2023-12-22 02:34:52,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1111986350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:52,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:52,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:34:52,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698332596] [2023-12-22 02:34:52,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:52,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:34:52,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:52,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:34:52,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:34:52,602 INFO L87 Difference]: Start difference. First operand 18233 states and 21738 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:34:53,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:53,981 INFO L93 Difference]: Finished difference Result 27013 states and 32239 transitions. [2023-12-22 02:34:53,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:34:53,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 147 [2023-12-22 02:34:53,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:54,007 INFO L225 Difference]: With dead ends: 27013 [2023-12-22 02:34:54,007 INFO L226 Difference]: Without dead ends: 15535 [2023-12-22 02:34:54,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 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 02:34:54,016 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 250 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:54,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 455 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:34:54,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15535 states. [2023-12-22 02:34:55,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15535 to 15535. [2023-12-22 02:34:55,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15535 states, 13001 states have (on average 1.208907007153296) internal successors, (15717), 13213 states have internal predecessors, (15717), 1204 states have call successors, (1204), 1018 states have call predecessors, (1204), 1328 states have return successors, (1574), 1305 states have call predecessors, (1574), 1203 states have call successors, (1574) [2023-12-22 02:34:55,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15535 states to 15535 states and 18495 transitions. [2023-12-22 02:34:55,529 INFO L78 Accepts]: Start accepts. Automaton has 15535 states and 18495 transitions. Word has length 147 [2023-12-22 02:34:55,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:55,529 INFO L495 AbstractCegarLoop]: Abstraction has 15535 states and 18495 transitions. [2023-12-22 02:34:55,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:34:55,529 INFO L276 IsEmpty]: Start isEmpty. Operand 15535 states and 18495 transitions. [2023-12-22 02:34:55,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-22 02:34:55,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:55,533 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:34:55,537 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 (40)] Ended with exit code 0 [2023-12-22 02:34:55,737 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 02:34:55,738 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:34:55,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:34:55,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1467673693, now seen corresponding path program 1 times [2023-12-22 02:34:55,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:34:55,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577228480] [2023-12-22 02:34:55,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:34:55,739 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 02:34:55,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:34:55,740 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 02:34:55,741 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 02:34:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:34:55,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:34:55,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:34:55,970 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-22 02:34:55,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:34:55,970 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:34:55,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577228480] [2023-12-22 02:34:55,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577228480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:34:55,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:34:55,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:34:55,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505905273] [2023-12-22 02:34:55,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:34:55,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:34:55,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:34:55,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:34:55,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:34:55,983 INFO L87 Difference]: Start difference. First operand 15535 states and 18495 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:34:57,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:34:57,875 INFO L93 Difference]: Finished difference Result 32106 states and 38333 transitions. [2023-12-22 02:34:57,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:34:57,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 149 [2023-12-22 02:34:57,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:34:57,907 INFO L225 Difference]: With dead ends: 32106 [2023-12-22 02:34:57,907 INFO L226 Difference]: Without dead ends: 23326 [2023-12-22 02:34:57,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 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 02:34:57,916 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 448 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:34:57,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 714 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:34:57,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23326 states. [2023-12-22 02:34:59,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23326 to 23324. [2023-12-22 02:34:59,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23324 states, 20075 states have (on average 1.2040348692403486) internal successors, (24171), 20328 states have internal predecessors, (24171), 1571 states have call successors, (1571), 1322 states have call predecessors, (1571), 1676 states have return successors, (2033), 1676 states have call predecessors, (2033), 1570 states have call successors, (2033) [2023-12-22 02:34:59,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23324 states to 23324 states and 27775 transitions. [2023-12-22 02:34:59,893 INFO L78 Accepts]: Start accepts. Automaton has 23324 states and 27775 transitions. Word has length 149 [2023-12-22 02:34:59,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:34:59,893 INFO L495 AbstractCegarLoop]: Abstraction has 23324 states and 27775 transitions. [2023-12-22 02:34:59,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:34:59,893 INFO L276 IsEmpty]: Start isEmpty. Operand 23324 states and 27775 transitions. [2023-12-22 02:34:59,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-22 02:34:59,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:34:59,901 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:34:59,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2023-12-22 02:35:00,106 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 02:35:00,106 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:35:00,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:35:00,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1311693151, now seen corresponding path program 1 times [2023-12-22 02:35:00,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:35:00,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166317019] [2023-12-22 02:35:00,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:35:00,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:35:00,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:35:00,108 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 02:35:00,110 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 02:35:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:35:00,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:35:00,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:35:00,213 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-22 02:35:00,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:35:00,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:35:00,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166317019] [2023-12-22 02:35:00,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166317019] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:35:00,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:35:00,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:35:00,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852736162] [2023-12-22 02:35:00,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:35:00,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:35:00,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:35:00,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:35:00,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:35:00,214 INFO L87 Difference]: Start difference. First operand 23324 states and 27775 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:35:01,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:35:01,925 INFO L93 Difference]: Finished difference Result 39886 states and 47544 transitions. [2023-12-22 02:35:01,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:35:01,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 149 [2023-12-22 02:35:01,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:35:01,961 INFO L225 Difference]: With dead ends: 39886 [2023-12-22 02:35:01,961 INFO L226 Difference]: Without dead ends: 23317 [2023-12-22 02:35:01,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:35:01,975 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 248 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:35:01,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 454 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:35:01,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23317 states. [2023-12-22 02:35:03,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23317 to 23317. [2023-12-22 02:35:03,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23317 states, 20071 states have (on average 1.2039260624782024) internal successors, (24164), 20323 states have internal predecessors, (24164), 1568 states have call successors, (1568), 1322 states have call predecessors, (1568), 1676 states have return successors, (2030), 1673 states have call predecessors, (2030), 1567 states have call successors, (2030) [2023-12-22 02:35:03,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23317 states to 23317 states and 27762 transitions. [2023-12-22 02:35:03,884 INFO L78 Accepts]: Start accepts. Automaton has 23317 states and 27762 transitions. Word has length 149 [2023-12-22 02:35:03,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:35:03,884 INFO L495 AbstractCegarLoop]: Abstraction has 23317 states and 27762 transitions. [2023-12-22 02:35:03,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:35:03,884 INFO L276 IsEmpty]: Start isEmpty. Operand 23317 states and 27762 transitions. [2023-12-22 02:35:03,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-22 02:35:03,892 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:35:03,892 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:35:03,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2023-12-22 02:35:04,097 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 02:35:04,098 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:35:04,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:35:04,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1029306014, now seen corresponding path program 1 times [2023-12-22 02:35:04,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:35:04,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068621982] [2023-12-22 02:35:04,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:35:04,098 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 02:35:04,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:35:04,100 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 02:35:04,100 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 02:35:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:35:04,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:35:04,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:35:04,320 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-22 02:35:04,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:35:04,320 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:35:04,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068621982] [2023-12-22 02:35:04,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068621982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:35:04,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:35:04,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:35:04,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685205988] [2023-12-22 02:35:04,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:35:04,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:35:04,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:35:04,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:35:04,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:35:04,322 INFO L87 Difference]: Start difference. First operand 23317 states and 27762 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:35:07,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:35:07,044 INFO L93 Difference]: Finished difference Result 55371 states and 66010 transitions. [2023-12-22 02:35:07,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:35:07,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 151 [2023-12-22 02:35:07,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:35:07,126 INFO L225 Difference]: With dead ends: 55371 [2023-12-22 02:35:07,126 INFO L226 Difference]: Without dead ends: 38809 [2023-12-22 02:35:07,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 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 02:35:07,148 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 444 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:35:07,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 678 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:35:07,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38809 states. [2023-12-22 02:35:09,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38809 to 38807. [2023-12-22 02:35:10,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38807 states, 34126 states have (on average 1.1987341030299479) internal successors, (40908), 34463 states have internal predecessors, (40908), 2299 states have call successors, (2299), 1930 states have call predecessors, (2299), 2380 states have return successors, (2953), 2416 states have call predecessors, (2953), 2298 states have call successors, (2953) [2023-12-22 02:35:10,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38807 states to 38807 states and 46160 transitions. [2023-12-22 02:35:10,079 INFO L78 Accepts]: Start accepts. Automaton has 38807 states and 46160 transitions. Word has length 151 [2023-12-22 02:35:10,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:35:10,079 INFO L495 AbstractCegarLoop]: Abstraction has 38807 states and 46160 transitions. [2023-12-22 02:35:10,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:35:10,079 INFO L276 IsEmpty]: Start isEmpty. Operand 38807 states and 46160 transitions. [2023-12-22 02:35:10,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-22 02:35:10,092 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:35:10,092 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:35:10,097 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 (43)] Ended with exit code 0 [2023-12-22 02:35:10,296 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 02:35:10,296 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:35:10,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:35:10,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1569735520, now seen corresponding path program 1 times [2023-12-22 02:35:10,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:35:10,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893550672] [2023-12-22 02:35:10,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:35:10,297 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 02:35:10,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:35:10,299 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 02:35:10,300 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 02:35:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:35:10,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:35:10,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:35:10,398 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-22 02:35:10,399 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:35:10,399 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:35:10,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893550672] [2023-12-22 02:35:10,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893550672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:35:10,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:35:10,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:35:10,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082313941] [2023-12-22 02:35:10,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:35:10,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:35:10,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:35:10,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:35:10,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:35:10,400 INFO L87 Difference]: Start difference. First operand 38807 states and 46160 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:35:13,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:35:13,051 INFO L93 Difference]: Finished difference Result 63287 states and 75357 transitions. [2023-12-22 02:35:13,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:35:13,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 151 [2023-12-22 02:35:13,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:35:13,147 INFO L225 Difference]: With dead ends: 63287 [2023-12-22 02:35:13,148 INFO L226 Difference]: Without dead ends: 31235 [2023-12-22 02:35:13,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 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 02:35:13,170 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 246 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:35:13,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 453 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:35:13,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31235 states. [2023-12-22 02:35:15,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31235 to 31235. [2023-12-22 02:35:15,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31235 states, 27261 states have (on average 1.2015333259968453) internal successors, (32755), 27561 states have internal predecessors, (32755), 1932 states have call successors, (1932), 1626 states have call predecessors, (1932), 2040 states have return successors, (2502), 2049 states have call predecessors, (2502), 1931 states have call successors, (2502) [2023-12-22 02:35:15,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31235 states to 31235 states and 37189 transitions. [2023-12-22 02:35:15,813 INFO L78 Accepts]: Start accepts. Automaton has 31235 states and 37189 transitions. Word has length 151 [2023-12-22 02:35:15,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:35:15,815 INFO L495 AbstractCegarLoop]: Abstraction has 31235 states and 37189 transitions. [2023-12-22 02:35:15,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:35:15,815 INFO L276 IsEmpty]: Start isEmpty. Operand 31235 states and 37189 transitions. [2023-12-22 02:35:15,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-22 02:35:15,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:35:15,832 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:35:15,841 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 02:35:16,042 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 02:35:16,043 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:35:16,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:35:16,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1602082147, now seen corresponding path program 1 times [2023-12-22 02:35:16,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:35:16,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906902599] [2023-12-22 02:35:16,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:35:16,044 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 02:35:16,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:35:16,045 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 02:35:16,047 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 02:35:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:35:16,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:35:16,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:35:16,368 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-22 02:35:16,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:35:16,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:35:16,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906902599] [2023-12-22 02:35:16,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906902599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:35:16,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:35:16,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:35:16,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585542784] [2023-12-22 02:35:16,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:35:16,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:35:16,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:35:16,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:35:16,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:35:16,370 INFO L87 Difference]: Start difference. First operand 31235 states and 37189 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:35:20,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:35:20,949 INFO L93 Difference]: Finished difference Result 77059 states and 91807 transitions. [2023-12-22 02:35:20,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:35:20,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 153 [2023-12-22 02:35:20,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:35:21,075 INFO L225 Difference]: With dead ends: 77059 [2023-12-22 02:35:21,075 INFO L226 Difference]: Without dead ends: 52579 [2023-12-22 02:35:21,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:35:21,104 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 454 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:35:21,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 528 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:35:21,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52579 states. [2023-12-22 02:35:25,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52579 to 52577. [2023-12-22 02:35:25,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52577 states, 46611 states have (on average 1.1967775846903093) internal successors, (55783), 47055 states have internal predecessors, (55783), 2928 states have call successors, (2928), 2442 states have call predecessors, (2928), 3036 states have return successors, (3810), 3081 states have call predecessors, (3810), 2927 states have call successors, (3810) [2023-12-22 02:35:25,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52577 states to 52577 states and 62521 transitions. [2023-12-22 02:35:25,378 INFO L78 Accepts]: Start accepts. Automaton has 52577 states and 62521 transitions. Word has length 153 [2023-12-22 02:35:25,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:35:25,379 INFO L495 AbstractCegarLoop]: Abstraction has 52577 states and 62521 transitions. [2023-12-22 02:35:25,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:35:25,379 INFO L276 IsEmpty]: Start isEmpty. Operand 52577 states and 62521 transitions. [2023-12-22 02:35:25,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-22 02:35:25,392 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:35:25,392 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:35:25,400 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 (45)] Forceful destruction successful, exit code 0 [2023-12-22 02:35:25,597 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 02:35:25,597 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:35:25,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:35:25,597 INFO L85 PathProgramCache]: Analyzing trace with hash 426750178, now seen corresponding path program 1 times [2023-12-22 02:35:25,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:35:25,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230323309] [2023-12-22 02:35:25,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:35:25,598 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 02:35:25,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:35:25,599 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 02:35:25,605 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 02:35:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:35:25,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:35:25,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:35:25,829 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-22 02:35:25,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:35:25,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:35:25,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230323309] [2023-12-22 02:35:25,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230323309] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:35:25,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:35:25,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:35:25,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852312606] [2023-12-22 02:35:25,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:35:25,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:35:25,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:35:25,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:35:25,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:35:25,831 INFO L87 Difference]: Start difference. First operand 52577 states and 62521 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:35:32,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:35:32,217 INFO L93 Difference]: Finished difference Result 140505 states and 166547 transitions. [2023-12-22 02:35:32,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:35:32,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 155 [2023-12-22 02:35:32,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:35:32,411 INFO L225 Difference]: With dead ends: 140505 [2023-12-22 02:35:32,412 INFO L226 Difference]: Without dead ends: 94683 [2023-12-22 02:35:32,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 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 02:35:32,454 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 437 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:35:32,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 632 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:35:32,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94683 states. [2023-12-22 02:35:38,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94683 to 93817. [2023-12-22 02:35:38,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93817 states, 83048 states have (on average 1.1890954628648494) internal successors, (98752), 84405 states have internal predecessors, (98752), 4779 states have call successors, (4779), 3930 states have call predecessors, (4779), 5988 states have return successors, (7462), 5484 states have call predecessors, (7462), 4778 states have call successors, (7462) [2023-12-22 02:35:39,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93817 states to 93817 states and 110993 transitions. [2023-12-22 02:35:39,054 INFO L78 Accepts]: Start accepts. Automaton has 93817 states and 110993 transitions. Word has length 155 [2023-12-22 02:35:39,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:35:39,054 INFO L495 AbstractCegarLoop]: Abstraction has 93817 states and 110993 transitions. [2023-12-22 02:35:39,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:35:39,054 INFO L276 IsEmpty]: Start isEmpty. Operand 93817 states and 110993 transitions. [2023-12-22 02:35:39,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-22 02:35:39,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:35:39,080 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:35:39,086 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 02:35:39,285 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 02:35:39,285 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:35:39,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:35:39,286 INFO L85 PathProgramCache]: Analyzing trace with hash 765037728, now seen corresponding path program 1 times [2023-12-22 02:35:39,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:35:39,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821428277] [2023-12-22 02:35:39,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:35:39,286 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 02:35:39,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:35:39,288 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 02:35:39,461 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 02:35:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:35:39,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:35:39,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:35:39,581 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-22 02:35:39,581 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:35:39,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:35:39,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821428277] [2023-12-22 02:35:39,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [821428277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:35:39,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:35:39,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:35:39,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507574091] [2023-12-22 02:35:39,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:35:39,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:35:39,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:35:39,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:35:39,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:35:39,583 INFO L87 Difference]: Start difference. First operand 93817 states and 110993 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:35:46,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:35:46,036 INFO L93 Difference]: Finished difference Result 180876 states and 213988 transitions. [2023-12-22 02:35:46,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:35:46,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 155 [2023-12-22 02:35:46,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:35:46,383 INFO L225 Difference]: With dead ends: 180876 [2023-12-22 02:35:46,383 INFO L226 Difference]: Without dead ends: 93813 [2023-12-22 02:35:46,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 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 02:35:46,467 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 243 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:35:46,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 452 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:35:46,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93813 states.