/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_3.cil+token_ring.04.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 02:39:11,516 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 02:39:11,583 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 02:39:11,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 02:39:11,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 02:39:11,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 02:39:11,619 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 02:39:11,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 02:39:11,619 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 02:39:11,620 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 02:39:11,620 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 02:39:11,620 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 02:39:11,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 02:39:11,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 02:39:11,621 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 02:39:11,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 02:39:11,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 02:39:11,622 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 02:39:11,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 02:39:11,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 02:39:11,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 02:39:11,626 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 02:39:11,626 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 02:39:11,627 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 02:39:11,630 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 02:39:11,630 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 02:39:11,630 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 02:39:11,631 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 02:39:11,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 02:39:11,631 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 02:39:11,632 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 02:39:11,632 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 02:39:11,632 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 02:39:11,633 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 02:39:11,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:39:11,633 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 02:39:11,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 02:39:11,633 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 02:39:11,633 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 02:39:11,633 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 02:39:11,633 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 02:39:11,634 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 02:39:11,634 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 02:39:11,634 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 02:39:11,634 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 02:39:11,634 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 02:39:11,635 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 02:39:11,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 02:39:11,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 02:39:11,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 02:39:11,863 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 02:39:11,868 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 02:39:11,869 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c [2023-12-22 02:39:12,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 02:39:13,130 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 02:39:13,130 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c [2023-12-22 02:39:13,146 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12331676/1d034367883e459b9853f6a2ca910717/FLAG4c233d52c [2023-12-22 02:39:13,158 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12331676/1d034367883e459b9853f6a2ca910717 [2023-12-22 02:39:13,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 02:39:13,161 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 02:39:13,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 02:39:13,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 02:39:13,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 02:39:13,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:39:13" (1/1) ... [2023-12-22 02:39:13,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bc25048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:13, skipping insertion in model container [2023-12-22 02:39:13,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:39:13" (1/1) ... [2023-12-22 02:39:13,201 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 02:39:13,298 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_3.cil+token_ring.04.cil-1.c[911,924] [2023-12-22 02:39:13,343 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_3.cil+token_ring.04.cil-1.c[8416,8429] [2023-12-22 02:39:13,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:39:13,423 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 02:39:13,431 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_3.cil+token_ring.04.cil-1.c[911,924] [2023-12-22 02:39:13,449 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_3.cil+token_ring.04.cil-1.c[8416,8429] [2023-12-22 02:39:13,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:39:13,510 INFO L206 MainTranslator]: Completed translation [2023-12-22 02:39:13,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:13 WrapperNode [2023-12-22 02:39:13,510 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 02:39:13,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 02:39:13,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 02:39:13,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 02:39:13,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:13" (1/1) ... [2023-12-22 02:39:13,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:13" (1/1) ... [2023-12-22 02:39:13,555 INFO L138 Inliner]: procedures = 64, calls = 73, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 602 [2023-12-22 02:39:13,556 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 02:39:13,556 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 02:39:13,557 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 02:39:13,557 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 02:39:13,583 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:13" (1/1) ... [2023-12-22 02:39:13,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:13" (1/1) ... [2023-12-22 02:39:13,587 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:13" (1/1) ... [2023-12-22 02:39:13,601 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 02:39:13,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:13" (1/1) ... [2023-12-22 02:39:13,602 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:13" (1/1) ... [2023-12-22 02:39:13,617 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:13" (1/1) ... [2023-12-22 02:39:13,640 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:13" (1/1) ... [2023-12-22 02:39:13,643 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:13" (1/1) ... [2023-12-22 02:39:13,645 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:13" (1/1) ... [2023-12-22 02:39:13,649 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 02:39:13,649 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 02:39:13,650 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 02:39:13,650 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 02:39:13,650 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:13" (1/1) ... [2023-12-22 02:39:13,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:39:13,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 02:39:13,677 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 02:39:13,693 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 02:39:13,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 02:39:13,706 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-22 02:39:13,707 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-22 02:39:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-22 02:39:13,707 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-22 02:39:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-22 02:39:13,707 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-22 02:39:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-22 02:39:13,707 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-22 02:39:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-22 02:39:13,707 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-22 02:39:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-22 02:39:13,707 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-22 02:39:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-22 02:39:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-22 02:39:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-22 02:39:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-22 02:39:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 02:39:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-22 02:39:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-22 02:39:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-22 02:39:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-22 02:39:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-22 02:39:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-22 02:39:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-22 02:39:13,709 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-22 02:39:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-22 02:39:13,709 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-22 02:39:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 02:39:13,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 02:39:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-22 02:39:13,709 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-22 02:39:13,791 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 02:39:13,794 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 02:39:14,296 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1bv32 == ~q_free~0); [2023-12-22 02:39:14,296 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1bv32 == ~q_free~0;~c_dr_st~0 := 2bv32;~c_dr_pc~0 := 2bv32;~a_t~0 := do_read_c_~a~0#1; [2023-12-22 02:39:14,374 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 02:39:14,426 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 02:39:14,427 INFO L309 CfgBuilder]: Removed 11 assume(true) statements. [2023-12-22 02:39:14,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:39:14 BoogieIcfgContainer [2023-12-22 02:39:14,427 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 02:39:14,429 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 02:39:14,429 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 02:39:14,432 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 02:39:14,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:39:13" (1/3) ... [2023-12-22 02:39:14,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6798e5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:39:14, skipping insertion in model container [2023-12-22 02:39:14,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:39:13" (2/3) ... [2023-12-22 02:39:14,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6798e5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:39:14, skipping insertion in model container [2023-12-22 02:39:14,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:39:14" (3/3) ... [2023-12-22 02:39:14,434 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.04.cil-1.c [2023-12-22 02:39:14,446 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 02:39:14,447 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 02:39:14,499 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 02:39:14,504 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;@dac21e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 02:39:14,504 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 02:39:14,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 268 states, 217 states have (on average 1.6682027649769586) internal successors, (362), 223 states have internal predecessors, (362), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-22 02:39:14,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-22 02:39:14,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:14,530 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] [2023-12-22 02:39:14,530 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:14,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:14,534 INFO L85 PathProgramCache]: Analyzing trace with hash 759238749, now seen corresponding path program 1 times [2023-12-22 02:39:14,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:14,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1895729820] [2023-12-22 02:39:14,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:14,547 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:14,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:14,551 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 02:39:14,554 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 02:39:14,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:14,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:39:14,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:14,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:39:14,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:14,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:14,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1895729820] [2023-12-22 02:39:14,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1895729820] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:14,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:14,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:39:14,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919278007] [2023-12-22 02:39:14,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:14,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:39:14,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:14,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:39:14,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:14,806 INFO L87 Difference]: Start difference. First operand has 268 states, 217 states have (on average 1.6682027649769586) internal successors, (362), 223 states have internal predecessors, (362), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 02:39:15,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:15,454 INFO L93 Difference]: Finished difference Result 626 states and 1005 transitions. [2023-12-22 02:39:15,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:39:15,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 57 [2023-12-22 02:39:15,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:15,465 INFO L225 Difference]: With dead ends: 626 [2023-12-22 02:39:15,465 INFO L226 Difference]: Without dead ends: 370 [2023-12-22 02:39:15,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 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 02:39:15,470 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 329 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:15,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 787 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:39:15,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-12-22 02:39:15,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 364. [2023-12-22 02:39:15,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 293 states have (on average 1.5324232081911262) internal successors, (449), 299 states have internal predecessors, (449), 47 states have call successors, (47), 21 states have call predecessors, (47), 22 states have return successors, (50), 46 states have call predecessors, (50), 45 states have call successors, (50) [2023-12-22 02:39:15,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 546 transitions. [2023-12-22 02:39:15,516 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 546 transitions. Word has length 57 [2023-12-22 02:39:15,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:15,517 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 546 transitions. [2023-12-22 02:39:15,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 02:39:15,517 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 546 transitions. [2023-12-22 02:39:15,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-22 02:39:15,519 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:15,519 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] [2023-12-22 02:39:15,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 02:39:15,724 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 02:39:15,725 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:15,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:15,727 INFO L85 PathProgramCache]: Analyzing trace with hash 835076637, now seen corresponding path program 1 times [2023-12-22 02:39:15,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:15,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [733871941] [2023-12-22 02:39:15,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:15,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:15,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:15,729 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 02:39:15,758 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 02:39:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:15,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:39:15,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:15,830 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 02:39:15,830 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:15,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:15,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [733871941] [2023-12-22 02:39:15,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [733871941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:15,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:15,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:39:15,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708395758] [2023-12-22 02:39:15,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:15,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:39:15,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:15,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:39:15,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:15,838 INFO L87 Difference]: Start difference. First operand 364 states and 546 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:39:15,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:15,920 INFO L93 Difference]: Finished difference Result 724 states and 1063 transitions. [2023-12-22 02:39:15,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:39:15,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 57 [2023-12-22 02:39:15,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:15,923 INFO L225 Difference]: With dead ends: 724 [2023-12-22 02:39:15,923 INFO L226 Difference]: Without dead ends: 536 [2023-12-22 02:39:15,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:15,925 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 364 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:15,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 505 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:39:15,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2023-12-22 02:39:15,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 530. [2023-12-22 02:39:15,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 423 states have (on average 1.5011820330969268) internal successors, (635), 431 states have internal predecessors, (635), 67 states have call successors, (67), 35 states have call predecessors, (67), 38 states have return successors, (73), 66 states have call predecessors, (73), 65 states have call successors, (73) [2023-12-22 02:39:15,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 775 transitions. [2023-12-22 02:39:15,956 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 775 transitions. Word has length 57 [2023-12-22 02:39:15,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:15,957 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 775 transitions. [2023-12-22 02:39:15,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:39:15,957 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 775 transitions. [2023-12-22 02:39:15,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:39:15,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:15,959 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 02:39:15,978 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 02:39:16,163 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 02:39:16,164 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:16,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:16,164 INFO L85 PathProgramCache]: Analyzing trace with hash -995947880, now seen corresponding path program 1 times [2023-12-22 02:39:16,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:16,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734006107] [2023-12-22 02:39:16,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:16,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:16,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:16,166 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 02:39:16,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 02:39:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:16,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:39:16,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:16,272 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 02:39:16,273 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:16,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:16,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734006107] [2023-12-22 02:39:16,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1734006107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:16,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:16,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:39:16,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007140531] [2023-12-22 02:39:16,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:16,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:39:16,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:16,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:39:16,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:39:16,275 INFO L87 Difference]: Start difference. First operand 530 states and 775 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 02:39:16,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:16,390 INFO L93 Difference]: Finished difference Result 902 states and 1309 transitions. [2023-12-22 02:39:16,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:39:16,391 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 02:39:16,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:16,394 INFO L225 Difference]: With dead ends: 902 [2023-12-22 02:39:16,394 INFO L226 Difference]: Without dead ends: 548 [2023-12-22 02:39:16,395 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 02:39:16,396 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 6 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:16,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1839 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:39:16,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-12-22 02:39:16,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 538. [2023-12-22 02:39:16,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 429 states have (on average 1.4895104895104896) internal successors, (639), 437 states have internal predecessors, (639), 67 states have call successors, (67), 35 states have call predecessors, (67), 40 states have return successors, (75), 68 states have call predecessors, (75), 65 states have call successors, (75) [2023-12-22 02:39:16,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 781 transitions. [2023-12-22 02:39:16,427 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 781 transitions. Word has length 58 [2023-12-22 02:39:16,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:16,428 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 781 transitions. [2023-12-22 02:39:16,428 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 02:39:16,428 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 781 transitions. [2023-12-22 02:39:16,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:39:16,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:16,431 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 02:39:16,448 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 02:39:16,635 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 02:39:16,636 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:16,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:16,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1068334438, now seen corresponding path program 1 times [2023-12-22 02:39:16,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:16,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220551929] [2023-12-22 02:39:16,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:16,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:16,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:16,653 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 02:39:16,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 02:39:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:16,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:39:16,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:16,786 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 02:39:16,800 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:16,800 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:16,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220551929] [2023-12-22 02:39:16,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1220551929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:16,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:16,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:39:16,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475933932] [2023-12-22 02:39:16,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:16,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:39:16,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:16,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:39:16,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:16,802 INFO L87 Difference]: Start difference. First operand 538 states and 781 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:39:16,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:16,889 INFO L93 Difference]: Finished difference Result 1232 states and 1753 transitions. [2023-12-22 02:39:16,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:39:16,890 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 02:39:16,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:16,893 INFO L225 Difference]: With dead ends: 1232 [2023-12-22 02:39:16,893 INFO L226 Difference]: Without dead ends: 870 [2023-12-22 02:39:16,894 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 02:39:16,895 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 353 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:16,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 481 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:39:16,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2023-12-22 02:39:16,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 866. [2023-12-22 02:39:16,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 683 states have (on average 1.4480234260614935) internal successors, (989), 695 states have internal predecessors, (989), 107 states have call successors, (107), 63 states have call predecessors, (107), 74 states have return successors, (123), 110 states have call predecessors, (123), 105 states have call successors, (123) [2023-12-22 02:39:16,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1219 transitions. [2023-12-22 02:39:16,933 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1219 transitions. Word has length 58 [2023-12-22 02:39:16,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:16,933 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 1219 transitions. [2023-12-22 02:39:16,934 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 02:39:16,934 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1219 transitions. [2023-12-22 02:39:16,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-22 02:39:16,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:16,935 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 02:39:16,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-22 02:39:17,141 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 02:39:17,142 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:17,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:17,143 INFO L85 PathProgramCache]: Analyzing trace with hash 551503546, now seen corresponding path program 1 times [2023-12-22 02:39:17,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:17,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340194360] [2023-12-22 02:39:17,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:17,144 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:17,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:17,146 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 02:39:17,162 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 02:39:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:17,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:39:17,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:17,250 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-22 02:39:17,250 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:17,250 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:17,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340194360] [2023-12-22 02:39:17,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340194360] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:17,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:17,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:39:17,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102835574] [2023-12-22 02:39:17,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:17,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:39:17,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:17,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:39:17,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:39:17,252 INFO L87 Difference]: Start difference. First operand 866 states and 1219 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 02:39:17,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:17,370 INFO L93 Difference]: Finished difference Result 1580 states and 2211 transitions. [2023-12-22 02:39:17,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:39:17,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 73 [2023-12-22 02:39:17,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:17,373 INFO L225 Difference]: With dead ends: 1580 [2023-12-22 02:39:17,373 INFO L226 Difference]: Without dead ends: 890 [2023-12-22 02:39:17,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 68 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 02:39:17,375 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 3 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:17,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1829 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:39:17,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2023-12-22 02:39:17,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 882. [2023-12-22 02:39:17,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 695 states have (on average 1.4345323741007194) internal successors, (997), 707 states have internal predecessors, (997), 107 states have call successors, (107), 63 states have call predecessors, (107), 78 states have return successors, (127), 114 states have call predecessors, (127), 105 states have call successors, (127) [2023-12-22 02:39:17,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1231 transitions. [2023-12-22 02:39:17,432 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1231 transitions. Word has length 73 [2023-12-22 02:39:17,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:17,432 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 1231 transitions. [2023-12-22 02:39:17,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 02:39:17,432 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1231 transitions. [2023-12-22 02:39:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-22 02:39:17,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:17,434 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 02:39:17,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-22 02:39:17,637 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 02:39:17,637 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:17,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:17,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1293863620, now seen corresponding path program 1 times [2023-12-22 02:39:17,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:17,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [912807000] [2023-12-22 02:39:17,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:17,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:17,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:17,639 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 02:39:17,641 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 02:39:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:17,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:39:17,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:17,772 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-22 02:39:17,772 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:17,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:17,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [912807000] [2023-12-22 02:39:17,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [912807000] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:17,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:17,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:17,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867102075] [2023-12-22 02:39:17,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:17,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:39:17,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:17,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:39:17,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:39:17,775 INFO L87 Difference]: Start difference. First operand 882 states and 1231 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 02:39:18,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:18,142 INFO L93 Difference]: Finished difference Result 2276 states and 3152 transitions. [2023-12-22 02:39:18,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:39:18,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 73 [2023-12-22 02:39:18,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:18,150 INFO L225 Difference]: With dead ends: 2276 [2023-12-22 02:39:18,150 INFO L226 Difference]: Without dead ends: 1572 [2023-12-22 02:39:18,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:18,160 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 523 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:18,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 423 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:39:18,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2023-12-22 02:39:18,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1568. [2023-12-22 02:39:18,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1215 states have (on average 1.3917695473251028) internal successors, (1691), 1239 states have internal predecessors, (1691), 197 states have call successors, (197), 119 states have call predecessors, (197), 154 states have return successors, (272), 214 states have call predecessors, (272), 195 states have call successors, (272) [2023-12-22 02:39:18,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2160 transitions. [2023-12-22 02:39:18,271 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2160 transitions. Word has length 73 [2023-12-22 02:39:18,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:18,273 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2160 transitions. [2023-12-22 02:39:18,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 02:39:18,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2160 transitions. [2023-12-22 02:39:18,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-22 02:39:18,276 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:18,276 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] [2023-12-22 02:39:18,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-22 02:39:18,480 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 02:39:18,481 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:18,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:18,481 INFO L85 PathProgramCache]: Analyzing trace with hash -100141796, now seen corresponding path program 1 times [2023-12-22 02:39:18,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:18,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219914398] [2023-12-22 02:39:18,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:18,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:18,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:18,484 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 02:39:18,490 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 02:39:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:18,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:39:18,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:18,613 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 02:39:18,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:18,613 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:18,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219914398] [2023-12-22 02:39:18,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219914398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:18,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:18,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:39:18,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570232332] [2023-12-22 02:39:18,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:18,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:39:18,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:18,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:39:18,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:18,615 INFO L87 Difference]: Start difference. First operand 1568 states and 2160 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 02:39:18,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:18,819 INFO L93 Difference]: Finished difference Result 4268 states and 5829 transitions. [2023-12-22 02:39:18,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:39:18,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 75 [2023-12-22 02:39:18,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:18,829 INFO L225 Difference]: With dead ends: 4268 [2023-12-22 02:39:18,829 INFO L226 Difference]: Without dead ends: 2246 [2023-12-22 02:39:18,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:18,835 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 110 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:18,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 833 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:39:18,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2023-12-22 02:39:18,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2246. [2023-12-22 02:39:18,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2246 states, 1733 states have (on average 1.375072129255626) internal successors, (2383), 1765 states have internal predecessors, (2383), 279 states have call successors, (279), 175 states have call predecessors, (279), 232 states have return successors, (416), 310 states have call predecessors, (416), 277 states have call successors, (416) [2023-12-22 02:39:18,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 3078 transitions. [2023-12-22 02:39:18,963 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 3078 transitions. Word has length 75 [2023-12-22 02:39:18,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:18,964 INFO L495 AbstractCegarLoop]: Abstraction has 2246 states and 3078 transitions. [2023-12-22 02:39:18,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 02:39:18,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 3078 transitions. [2023-12-22 02:39:18,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:39:18,971 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:18,971 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] [2023-12-22 02:39:18,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 02:39:19,175 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 02:39:19,176 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:19,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:19,178 INFO L85 PathProgramCache]: Analyzing trace with hash -468735642, now seen corresponding path program 1 times [2023-12-22 02:39:19,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:19,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450624795] [2023-12-22 02:39:19,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:19,179 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 02:39:19,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:19,181 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 02:39:19,182 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 02:39:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:19,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:39:19,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:19,286 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 02:39:19,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:19,286 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:19,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450624795] [2023-12-22 02:39:19,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1450624795] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:19,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:19,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:39:19,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960003395] [2023-12-22 02:39:19,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:19,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:39:19,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:19,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:39:19,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:19,288 INFO L87 Difference]: Start difference. First operand 2246 states and 3078 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 02:39:19,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:19,385 INFO L93 Difference]: Finished difference Result 2400 states and 3316 transitions. [2023-12-22 02:39:19,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:39:19,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 81 [2023-12-22 02:39:19,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:19,394 INFO L225 Difference]: With dead ends: 2400 [2023-12-22 02:39:19,394 INFO L226 Difference]: Without dead ends: 2246 [2023-12-22 02:39:19,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:19,395 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 242 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:19,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 501 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:39:19,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2023-12-22 02:39:19,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2246. [2023-12-22 02:39:19,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2246 states, 1733 states have (on average 1.3744950952106174) internal successors, (2382), 1765 states have internal predecessors, (2382), 279 states have call successors, (279), 175 states have call predecessors, (279), 232 states have return successors, (416), 310 states have call predecessors, (416), 277 states have call successors, (416) [2023-12-22 02:39:19,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 3077 transitions. [2023-12-22 02:39:19,490 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 3077 transitions. Word has length 81 [2023-12-22 02:39:19,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:19,491 INFO L495 AbstractCegarLoop]: Abstraction has 2246 states and 3077 transitions. [2023-12-22 02:39:19,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 02:39:19,491 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 3077 transitions. [2023-12-22 02:39:19,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:39:19,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:19,493 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] [2023-12-22 02:39:19,498 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 02:39:19,697 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 02:39:19,721 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:19,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:19,721 INFO L85 PathProgramCache]: Analyzing trace with hash 498615012, now seen corresponding path program 1 times [2023-12-22 02:39:19,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:19,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206296401] [2023-12-22 02:39:19,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:19,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:19,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:19,737 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 02:39:19,781 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 02:39:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:19,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:39:19,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:19,866 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 02:39:19,866 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:19,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:19,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206296401] [2023-12-22 02:39:19,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206296401] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:19,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:19,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:19,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562813682] [2023-12-22 02:39:19,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:19,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:39:19,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:19,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:39:19,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:19,868 INFO L87 Difference]: Start difference. First operand 2246 states and 3077 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 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 02:39:20,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:20,376 INFO L93 Difference]: Finished difference Result 2567 states and 3582 transitions. [2023-12-22 02:39:20,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:39:20,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 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 81 [2023-12-22 02:39:20,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:20,386 INFO L225 Difference]: With dead ends: 2567 [2023-12-22 02:39:20,386 INFO L226 Difference]: Without dead ends: 2415 [2023-12-22 02:39:20,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 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 02:39:20,388 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 629 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:20,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 799 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:39:20,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2415 states. [2023-12-22 02:39:20,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2415 to 2402. [2023-12-22 02:39:20,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2402 states, 1869 states have (on average 1.390048154093098) internal successors, (2598), 1902 states have internal predecessors, (2598), 292 states have call successors, (292), 181 states have call predecessors, (292), 239 states have return successors, (430), 323 states have call predecessors, (430), 290 states have call successors, (430) [2023-12-22 02:39:20,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2402 states to 2402 states and 3320 transitions. [2023-12-22 02:39:20,495 INFO L78 Accepts]: Start accepts. Automaton has 2402 states and 3320 transitions. Word has length 81 [2023-12-22 02:39:20,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:20,495 INFO L495 AbstractCegarLoop]: Abstraction has 2402 states and 3320 transitions. [2023-12-22 02:39:20,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 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 02:39:20,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2402 states and 3320 transitions. [2023-12-22 02:39:20,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:39:20,498 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:20,498 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] [2023-12-22 02:39:20,515 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 02:39:20,703 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 02:39:20,704 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:20,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:20,704 INFO L85 PathProgramCache]: Analyzing trace with hash -919184092, now seen corresponding path program 1 times [2023-12-22 02:39:20,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:20,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335981590] [2023-12-22 02:39:20,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:20,705 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 02:39:20,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:20,713 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 02:39:20,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 02:39:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:20,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:39:20,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:20,834 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 02:39:20,835 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:20,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:20,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335981590] [2023-12-22 02:39:20,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335981590] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:20,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:20,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:20,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702162198] [2023-12-22 02:39:20,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:20,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:39:20,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:20,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:39:20,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:20,837 INFO L87 Difference]: Start difference. First operand 2402 states and 3320 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:21,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:21,267 INFO L93 Difference]: Finished difference Result 2710 states and 3805 transitions. [2023-12-22 02:39:21,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:39:21,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:39:21,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:21,277 INFO L225 Difference]: With dead ends: 2710 [2023-12-22 02:39:21,277 INFO L226 Difference]: Without dead ends: 2402 [2023-12-22 02:39:21,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 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 02:39:21,279 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 502 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:21,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 563 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:39:21,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2023-12-22 02:39:21,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 2402. [2023-12-22 02:39:21,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2402 states, 1869 states have (on average 1.386302835741038) internal successors, (2591), 1902 states have internal predecessors, (2591), 292 states have call successors, (292), 181 states have call predecessors, (292), 239 states have return successors, (430), 323 states have call predecessors, (430), 290 states have call successors, (430) [2023-12-22 02:39:21,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2402 states to 2402 states and 3313 transitions. [2023-12-22 02:39:21,392 INFO L78 Accepts]: Start accepts. Automaton has 2402 states and 3313 transitions. Word has length 81 [2023-12-22 02:39:21,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:21,392 INFO L495 AbstractCegarLoop]: Abstraction has 2402 states and 3313 transitions. [2023-12-22 02:39:21,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:21,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2402 states and 3313 transitions. [2023-12-22 02:39:21,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:39:21,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:21,394 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] [2023-12-22 02:39:21,411 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 02:39:21,598 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 02:39:21,599 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:21,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:21,599 INFO L85 PathProgramCache]: Analyzing trace with hash -2073298204, now seen corresponding path program 1 times [2023-12-22 02:39:21,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:21,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825343433] [2023-12-22 02:39:21,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:21,600 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:21,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:21,601 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 02:39:21,630 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 02:39:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:21,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:39:21,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:21,729 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 02:39:21,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:21,730 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:21,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825343433] [2023-12-22 02:39:21,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825343433] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:21,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:21,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:21,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556086218] [2023-12-22 02:39:21,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:21,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:39:21,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:21,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:39:21,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:21,763 INFO L87 Difference]: Start difference. First operand 2402 states and 3313 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:22,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:22,135 INFO L93 Difference]: Finished difference Result 2710 states and 3791 transitions. [2023-12-22 02:39:22,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:39:22,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:39:22,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:22,145 INFO L225 Difference]: With dead ends: 2710 [2023-12-22 02:39:22,146 INFO L226 Difference]: Without dead ends: 2402 [2023-12-22 02:39:22,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 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 02:39:22,147 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 496 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:22,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 556 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:39:22,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2023-12-22 02:39:22,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 2402. [2023-12-22 02:39:22,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2402 states, 1869 states have (on average 1.3825575173889781) internal successors, (2584), 1902 states have internal predecessors, (2584), 292 states have call successors, (292), 181 states have call predecessors, (292), 239 states have return successors, (430), 323 states have call predecessors, (430), 290 states have call successors, (430) [2023-12-22 02:39:22,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2402 states to 2402 states and 3306 transitions. [2023-12-22 02:39:22,321 INFO L78 Accepts]: Start accepts. Automaton has 2402 states and 3306 transitions. Word has length 81 [2023-12-22 02:39:22,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:22,321 INFO L495 AbstractCegarLoop]: Abstraction has 2402 states and 3306 transitions. [2023-12-22 02:39:22,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:22,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2402 states and 3306 transitions. [2023-12-22 02:39:22,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:39:22,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:22,324 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] [2023-12-22 02:39:22,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-22 02:39:22,528 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 02:39:22,528 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:22,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:22,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1630250276, now seen corresponding path program 1 times [2023-12-22 02:39:22,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:22,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7043185] [2023-12-22 02:39:22,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:22,530 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:22,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:22,531 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 02:39:22,547 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 (13)] Waiting until timeout for monitored process [2023-12-22 02:39:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:22,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:39:22,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:22,664 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 02:39:22,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:22,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:22,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7043185] [2023-12-22 02:39:22,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7043185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:22,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:22,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:22,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596171580] [2023-12-22 02:39:22,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:22,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:39:22,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:22,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:39:22,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:22,666 INFO L87 Difference]: Start difference. First operand 2402 states and 3306 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:23,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:23,094 INFO L93 Difference]: Finished difference Result 2710 states and 3777 transitions. [2023-12-22 02:39:23,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:39:23,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:39:23,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:23,103 INFO L225 Difference]: With dead ends: 2710 [2023-12-22 02:39:23,104 INFO L226 Difference]: Without dead ends: 2402 [2023-12-22 02:39:23,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 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 02:39:23,106 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 490 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:23,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 549 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:39:23,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2023-12-22 02:39:23,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 2402. [2023-12-22 02:39:23,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2402 states, 1869 states have (on average 1.3788121990369182) internal successors, (2577), 1902 states have internal predecessors, (2577), 292 states have call successors, (292), 181 states have call predecessors, (292), 239 states have return successors, (430), 323 states have call predecessors, (430), 290 states have call successors, (430) [2023-12-22 02:39:23,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2402 states to 2402 states and 3299 transitions. [2023-12-22 02:39:23,291 INFO L78 Accepts]: Start accepts. Automaton has 2402 states and 3299 transitions. Word has length 81 [2023-12-22 02:39:23,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:23,292 INFO L495 AbstractCegarLoop]: Abstraction has 2402 states and 3299 transitions. [2023-12-22 02:39:23,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:23,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2402 states and 3299 transitions. [2023-12-22 02:39:23,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:39:23,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:23,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:39:23,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-22 02:39:23,499 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 02:39:23,499 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:23,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:23,500 INFO L85 PathProgramCache]: Analyzing trace with hash -55929562, now seen corresponding path program 1 times [2023-12-22 02:39:23,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:23,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887491979] [2023-12-22 02:39:23,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:23,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:23,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:23,517 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 02:39:23,592 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 02:39:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:23,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:39:23,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:23,680 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 02:39:23,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:23,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:23,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887491979] [2023-12-22 02:39:23,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887491979] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:23,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:23,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:23,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312029726] [2023-12-22 02:39:23,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:23,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:39:23,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:23,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:39:23,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:23,682 INFO L87 Difference]: Start difference. First operand 2402 states and 3299 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:24,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:24,153 INFO L93 Difference]: Finished difference Result 2710 states and 3763 transitions. [2023-12-22 02:39:24,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:39:24,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:39:24,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:24,163 INFO L225 Difference]: With dead ends: 2710 [2023-12-22 02:39:24,164 INFO L226 Difference]: Without dead ends: 2402 [2023-12-22 02:39:24,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 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 02:39:24,167 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 484 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:24,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 542 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:39:24,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2023-12-22 02:39:24,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 2402. [2023-12-22 02:39:24,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2402 states, 1869 states have (on average 1.3750668806848583) internal successors, (2570), 1902 states have internal predecessors, (2570), 292 states have call successors, (292), 181 states have call predecessors, (292), 239 states have return successors, (430), 323 states have call predecessors, (430), 290 states have call successors, (430) [2023-12-22 02:39:24,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2402 states to 2402 states and 3292 transitions. [2023-12-22 02:39:24,351 INFO L78 Accepts]: Start accepts. Automaton has 2402 states and 3292 transitions. Word has length 81 [2023-12-22 02:39:24,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:24,351 INFO L495 AbstractCegarLoop]: Abstraction has 2402 states and 3292 transitions. [2023-12-22 02:39:24,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:24,352 INFO L276 IsEmpty]: Start isEmpty. Operand 2402 states and 3292 transitions. [2023-12-22 02:39:24,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:39:24,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:24,354 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] [2023-12-22 02:39:24,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-22 02:39:24,557 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 02:39:24,558 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:24,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:24,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1915760794, now seen corresponding path program 1 times [2023-12-22 02:39:24,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:24,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728248197] [2023-12-22 02:39:24,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:24,559 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:24,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:24,573 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 02:39:24,587 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 02:39:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:24,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:39:24,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:24,727 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 02:39:24,728 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:24,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:24,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728248197] [2023-12-22 02:39:24,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728248197] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:24,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:24,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:24,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064170544] [2023-12-22 02:39:24,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:24,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:39:24,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:24,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:39:24,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:24,729 INFO L87 Difference]: Start difference. First operand 2402 states and 3292 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:25,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:25,235 INFO L93 Difference]: Finished difference Result 2780 states and 3861 transitions. [2023-12-22 02:39:25,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:39:25,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:39:25,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:25,244 INFO L225 Difference]: With dead ends: 2780 [2023-12-22 02:39:25,244 INFO L226 Difference]: Without dead ends: 2472 [2023-12-22 02:39:25,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 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 02:39:25,246 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 519 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 536 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 02:39:25,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 536 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:39:25,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2472 states. [2023-12-22 02:39:25,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2472 to 2472. [2023-12-22 02:39:25,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2472 states, 1933 states have (on average 1.373512674599069) internal successors, (2655), 1966 states have internal predecessors, (2655), 294 states have call successors, (294), 185 states have call predecessors, (294), 243 states have return successors, (432), 325 states have call predecessors, (432), 292 states have call successors, (432) [2023-12-22 02:39:25,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2472 states to 2472 states and 3381 transitions. [2023-12-22 02:39:25,424 INFO L78 Accepts]: Start accepts. Automaton has 2472 states and 3381 transitions. Word has length 81 [2023-12-22 02:39:25,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:25,425 INFO L495 AbstractCegarLoop]: Abstraction has 2472 states and 3381 transitions. [2023-12-22 02:39:25,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:25,425 INFO L276 IsEmpty]: Start isEmpty. Operand 2472 states and 3381 transitions. [2023-12-22 02:39:25,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:39:25,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:25,428 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] [2023-12-22 02:39:25,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-22 02:39:25,632 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 02:39:25,632 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:25,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:25,633 INFO L85 PathProgramCache]: Analyzing trace with hash 654416615, now seen corresponding path program 1 times [2023-12-22 02:39:25,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:25,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64033309] [2023-12-22 02:39:25,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:25,634 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:25,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:25,649 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 02:39:25,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-22 02:39:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:25,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:39:25,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:25,772 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 02:39:25,772 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:25,772 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:25,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64033309] [2023-12-22 02:39:25,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64033309] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:25,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:25,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:25,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724804668] [2023-12-22 02:39:25,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:25,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:39:25,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:25,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:39:25,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:25,774 INFO L87 Difference]: Start difference. First operand 2472 states and 3381 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:26,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:26,295 INFO L93 Difference]: Finished difference Result 2920 states and 4039 transitions. [2023-12-22 02:39:26,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:39:26,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:39:26,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:26,313 INFO L225 Difference]: With dead ends: 2920 [2023-12-22 02:39:26,313 INFO L226 Difference]: Without dead ends: 2542 [2023-12-22 02:39:26,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 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 02:39:26,317 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 513 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:26,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 529 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:39:26,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2023-12-22 02:39:26,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2542. [2023-12-22 02:39:26,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2542 states, 1997 states have (on average 1.370055082623936) internal successors, (2736), 2030 states have internal predecessors, (2736), 296 states have call successors, (296), 189 states have call predecessors, (296), 247 states have return successors, (434), 327 states have call predecessors, (434), 294 states have call successors, (434) [2023-12-22 02:39:26,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2542 states to 2542 states and 3466 transitions. [2023-12-22 02:39:26,513 INFO L78 Accepts]: Start accepts. Automaton has 2542 states and 3466 transitions. Word has length 81 [2023-12-22 02:39:26,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:26,513 INFO L495 AbstractCegarLoop]: Abstraction has 2542 states and 3466 transitions. [2023-12-22 02:39:26,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:26,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2542 states and 3466 transitions. [2023-12-22 02:39:26,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:39:26,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:26,516 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] [2023-12-22 02:39:26,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-22 02:39:26,720 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 02:39:26,720 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:26,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:26,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1798342823, now seen corresponding path program 1 times [2023-12-22 02:39:26,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:26,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167796804] [2023-12-22 02:39:26,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:26,721 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:26,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:26,722 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 02:39:26,724 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 02:39:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:26,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:39:26,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:26,837 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 02:39:26,837 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:26,837 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:26,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167796804] [2023-12-22 02:39:26,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167796804] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:26,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:26,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:26,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742239689] [2023-12-22 02:39:26,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:26,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:39:26,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:26,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:39:26,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:26,839 INFO L87 Difference]: Start difference. First operand 2542 states and 3466 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:27,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:27,366 INFO L93 Difference]: Finished difference Result 3060 states and 4209 transitions. [2023-12-22 02:39:27,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:39:27,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:39:27,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:27,374 INFO L225 Difference]: With dead ends: 3060 [2023-12-22 02:39:27,374 INFO L226 Difference]: Without dead ends: 2612 [2023-12-22 02:39:27,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 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 02:39:27,376 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 506 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:27,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 522 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:39:27,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2612 states. [2023-12-22 02:39:27,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2612 to 2612. [2023-12-22 02:39:27,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2612 states, 2061 states have (on average 1.3648714216399807) internal successors, (2813), 2094 states have internal predecessors, (2813), 298 states have call successors, (298), 193 states have call predecessors, (298), 251 states have return successors, (436), 329 states have call predecessors, (436), 296 states have call successors, (436) [2023-12-22 02:39:27,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 3547 transitions. [2023-12-22 02:39:27,563 INFO L78 Accepts]: Start accepts. Automaton has 2612 states and 3547 transitions. Word has length 81 [2023-12-22 02:39:27,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:27,563 INFO L495 AbstractCegarLoop]: Abstraction has 2612 states and 3547 transitions. [2023-12-22 02:39:27,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:27,563 INFO L276 IsEmpty]: Start isEmpty. Operand 2612 states and 3547 transitions. [2023-12-22 02:39:27,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:39:27,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:27,566 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] [2023-12-22 02:39:27,574 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 02:39:27,770 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 02:39:27,770 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:27,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:27,770 INFO L85 PathProgramCache]: Analyzing trace with hash -645705368, now seen corresponding path program 1 times [2023-12-22 02:39:27,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:27,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [56762689] [2023-12-22 02:39:27,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:27,771 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:27,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:27,772 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 02:39:27,798 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 02:39:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:27,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:39:27,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:27,889 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 02:39:27,889 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:27,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:27,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [56762689] [2023-12-22 02:39:27,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [56762689] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:27,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:27,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:27,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990254873] [2023-12-22 02:39:27,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:27,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:39:27,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:27,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:39:27,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:27,891 INFO L87 Difference]: Start difference. First operand 2612 states and 3547 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:28,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:28,414 INFO L93 Difference]: Finished difference Result 3200 states and 4371 transitions. [2023-12-22 02:39:28,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:39:28,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:39:28,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:28,427 INFO L225 Difference]: With dead ends: 3200 [2023-12-22 02:39:28,427 INFO L226 Difference]: Without dead ends: 2682 [2023-12-22 02:39:28,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 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 02:39:28,430 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 499 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:28,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 515 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:39:28,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2023-12-22 02:39:28,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2682. [2023-12-22 02:39:28,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2682 states, 2125 states have (on average 1.3581176470588234) internal successors, (2886), 2158 states have internal predecessors, (2886), 300 states have call successors, (300), 197 states have call predecessors, (300), 255 states have return successors, (438), 331 states have call predecessors, (438), 298 states have call successors, (438) [2023-12-22 02:39:28,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 3624 transitions. [2023-12-22 02:39:28,681 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 3624 transitions. Word has length 81 [2023-12-22 02:39:28,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:28,681 INFO L495 AbstractCegarLoop]: Abstraction has 2682 states and 3624 transitions. [2023-12-22 02:39:28,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:28,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 3624 transitions. [2023-12-22 02:39:28,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:39:28,683 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:28,683 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] [2023-12-22 02:39:28,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-22 02:39:28,887 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 02:39:28,888 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:28,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:28,888 INFO L85 PathProgramCache]: Analyzing trace with hash 587166727, now seen corresponding path program 1 times [2023-12-22 02:39:28,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:28,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953693085] [2023-12-22 02:39:28,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:28,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:28,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:28,891 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 02:39:28,892 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 02:39:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:29,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:39:29,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:29,015 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 02:39:29,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:29,015 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:29,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953693085] [2023-12-22 02:39:29,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953693085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:29,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:29,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:29,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220938698] [2023-12-22 02:39:29,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:29,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:39:29,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:29,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:39:29,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:39:29,017 INFO L87 Difference]: Start difference. First operand 2682 states and 3624 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:29,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:29,228 INFO L93 Difference]: Finished difference Result 3549 states and 4810 transitions. [2023-12-22 02:39:29,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:39:29,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:39:29,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:29,238 INFO L225 Difference]: With dead ends: 3549 [2023-12-22 02:39:29,238 INFO L226 Difference]: Without dead ends: 2962 [2023-12-22 02:39:29,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 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 02:39:29,241 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 38 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:29,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1021 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:39:29,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2023-12-22 02:39:29,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 2702. [2023-12-22 02:39:29,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2702 states, 2145 states have (on average 1.3547785547785547) internal successors, (2906), 2178 states have internal predecessors, (2906), 300 states have call successors, (300), 197 states have call predecessors, (300), 255 states have return successors, (438), 331 states have call predecessors, (438), 298 states have call successors, (438) [2023-12-22 02:39:29,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2702 states to 2702 states and 3644 transitions. [2023-12-22 02:39:29,457 INFO L78 Accepts]: Start accepts. Automaton has 2702 states and 3644 transitions. Word has length 81 [2023-12-22 02:39:29,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:29,458 INFO L495 AbstractCegarLoop]: Abstraction has 2702 states and 3644 transitions. [2023-12-22 02:39:29,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:29,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2702 states and 3644 transitions. [2023-12-22 02:39:29,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:39:29,460 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:29,460 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] [2023-12-22 02:39:29,464 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 02:39:29,664 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 02:39:29,664 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:29,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:29,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1441419383, now seen corresponding path program 1 times [2023-12-22 02:39:29,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:29,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801256956] [2023-12-22 02:39:29,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:29,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:29,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:29,674 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 02:39:29,677 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 02:39:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:29,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:39:29,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:29,768 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 02:39:29,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:29,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:29,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801256956] [2023-12-22 02:39:29,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801256956] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:29,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:29,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:29,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101143095] [2023-12-22 02:39:29,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:29,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:39:29,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:29,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:39:29,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:39:29,770 INFO L87 Difference]: Start difference. First operand 2702 states and 3644 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:29,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:29,986 INFO L93 Difference]: Finished difference Result 3353 states and 4526 transitions. [2023-12-22 02:39:29,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:39:29,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:39:29,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:29,994 INFO L225 Difference]: With dead ends: 3353 [2023-12-22 02:39:29,994 INFO L226 Difference]: Without dead ends: 2746 [2023-12-22 02:39:29,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 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 02:39:29,996 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 29 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:29,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1021 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:39:29,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2023-12-22 02:39:30,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2706. [2023-12-22 02:39:30,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2706 states, 2149 states have (on average 1.3503955328059563) internal successors, (2902), 2182 states have internal predecessors, (2902), 300 states have call successors, (300), 197 states have call predecessors, (300), 255 states have return successors, (438), 331 states have call predecessors, (438), 298 states have call successors, (438) [2023-12-22 02:39:30,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 3640 transitions. [2023-12-22 02:39:30,170 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 3640 transitions. Word has length 81 [2023-12-22 02:39:30,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:30,170 INFO L495 AbstractCegarLoop]: Abstraction has 2706 states and 3640 transitions. [2023-12-22 02:39:30,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:30,170 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 3640 transitions. [2023-12-22 02:39:30,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:39:30,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:30,174 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] [2023-12-22 02:39:30,197 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 (20)] Ended with exit code 0 [2023-12-22 02:39:30,378 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 02:39:30,379 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:30,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:30,379 INFO L85 PathProgramCache]: Analyzing trace with hash 486853319, now seen corresponding path program 1 times [2023-12-22 02:39:30,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:30,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135707012] [2023-12-22 02:39:30,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:30,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:30,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:30,381 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 02:39:30,387 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 02:39:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:30,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:39:30,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:30,461 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 02:39:30,461 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:30,462 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:30,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135707012] [2023-12-22 02:39:30,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135707012] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:30,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:30,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:30,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84985395] [2023-12-22 02:39:30,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:30,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:39:30,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:30,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:39:30,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:39:30,463 INFO L87 Difference]: Start difference. First operand 2706 states and 3640 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:30,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:30,692 INFO L93 Difference]: Finished difference Result 3349 states and 4502 transitions. [2023-12-22 02:39:30,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:39:30,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:39:30,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:30,699 INFO L225 Difference]: With dead ends: 3349 [2023-12-22 02:39:30,699 INFO L226 Difference]: Without dead ends: 2738 [2023-12-22 02:39:30,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 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 02:39:30,701 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 20 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:30,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1019 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:39:30,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2738 states. [2023-12-22 02:39:30,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2738 to 2710. [2023-12-22 02:39:30,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2710 states, 2153 states have (on average 1.3460287970274036) internal successors, (2898), 2186 states have internal predecessors, (2898), 300 states have call successors, (300), 197 states have call predecessors, (300), 255 states have return successors, (438), 331 states have call predecessors, (438), 298 states have call successors, (438) [2023-12-22 02:39:30,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2710 states to 2710 states and 3636 transitions. [2023-12-22 02:39:30,865 INFO L78 Accepts]: Start accepts. Automaton has 2710 states and 3636 transitions. Word has length 81 [2023-12-22 02:39:30,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:30,865 INFO L495 AbstractCegarLoop]: Abstraction has 2710 states and 3636 transitions. [2023-12-22 02:39:30,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:30,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2710 states and 3636 transitions. [2023-12-22 02:39:30,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:39:30,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:30,868 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] [2023-12-22 02:39:30,874 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 02:39:31,073 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 02:39:31,073 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:31,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:31,074 INFO L85 PathProgramCache]: Analyzing trace with hash 910500041, now seen corresponding path program 1 times [2023-12-22 02:39:31,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:31,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514722174] [2023-12-22 02:39:31,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:31,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:31,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:31,085 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 02:39:31,113 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 02:39:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:31,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:39:31,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:31,166 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 02:39:31,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:31,166 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:31,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514722174] [2023-12-22 02:39:31,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514722174] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:31,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:31,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:31,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390316457] [2023-12-22 02:39:31,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:31,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:39:31,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:31,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:39:31,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:39:31,168 INFO L87 Difference]: Start difference. First operand 2710 states and 3636 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:31,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:31,445 INFO L93 Difference]: Finished difference Result 3345 states and 4478 transitions. [2023-12-22 02:39:31,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:39:31,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:39:31,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:31,452 INFO L225 Difference]: With dead ends: 3345 [2023-12-22 02:39:31,452 INFO L226 Difference]: Without dead ends: 2730 [2023-12-22 02:39:31,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 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 02:39:31,454 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 11 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:31,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1020 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:39:31,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2730 states. [2023-12-22 02:39:31,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2730 to 2714. [2023-12-22 02:39:31,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2714 states, 2157 states have (on average 1.3416782568382013) internal successors, (2894), 2190 states have internal predecessors, (2894), 300 states have call successors, (300), 197 states have call predecessors, (300), 255 states have return successors, (438), 331 states have call predecessors, (438), 298 states have call successors, (438) [2023-12-22 02:39:31,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2714 states to 2714 states and 3632 transitions. [2023-12-22 02:39:31,622 INFO L78 Accepts]: Start accepts. Automaton has 2714 states and 3632 transitions. Word has length 81 [2023-12-22 02:39:31,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:31,623 INFO L495 AbstractCegarLoop]: Abstraction has 2714 states and 3632 transitions. [2023-12-22 02:39:31,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:31,623 INFO L276 IsEmpty]: Start isEmpty. Operand 2714 states and 3632 transitions. [2023-12-22 02:39:31,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:39:31,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:31,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:39:31,653 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 02:39:31,830 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 02:39:31,830 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:31,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:31,831 INFO L85 PathProgramCache]: Analyzing trace with hash 516133255, now seen corresponding path program 1 times [2023-12-22 02:39:31,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:31,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461584122] [2023-12-22 02:39:31,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:31,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:31,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:31,832 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 02:39:31,855 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 02:39:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:31,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:39:31,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:31,913 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 02:39:31,914 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:31,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:31,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461584122] [2023-12-22 02:39:31,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461584122] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:31,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:31,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:31,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36923267] [2023-12-22 02:39:31,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:31,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:39:31,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:31,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:39:31,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:39:31,916 INFO L87 Difference]: Start difference. First operand 2714 states and 3632 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:32,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:32,156 INFO L93 Difference]: Finished difference Result 3341 states and 4454 transitions. [2023-12-22 02:39:32,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:39:32,156 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:39:32,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:32,163 INFO L225 Difference]: With dead ends: 3341 [2023-12-22 02:39:32,163 INFO L226 Difference]: Without dead ends: 2722 [2023-12-22 02:39:32,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 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 02:39:32,165 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 2 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:32,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1021 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:39:32,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2023-12-22 02:39:32,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 2718. [2023-12-22 02:39:32,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2718 states, 2161 states have (on average 1.3373438223044887) internal successors, (2890), 2194 states have internal predecessors, (2890), 300 states have call successors, (300), 197 states have call predecessors, (300), 255 states have return successors, (438), 331 states have call predecessors, (438), 298 states have call successors, (438) [2023-12-22 02:39:32,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2718 states to 2718 states and 3628 transitions. [2023-12-22 02:39:32,337 INFO L78 Accepts]: Start accepts. Automaton has 2718 states and 3628 transitions. Word has length 81 [2023-12-22 02:39:32,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:32,337 INFO L495 AbstractCegarLoop]: Abstraction has 2718 states and 3628 transitions. [2023-12-22 02:39:32,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:32,337 INFO L276 IsEmpty]: Start isEmpty. Operand 2718 states and 3628 transitions. [2023-12-22 02:39:32,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:39:32,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:32,339 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] [2023-12-22 02:39:32,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2023-12-22 02:39:32,543 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 02:39:32,543 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:32,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:32,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1217733129, now seen corresponding path program 1 times [2023-12-22 02:39:32,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:32,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920010704] [2023-12-22 02:39:32,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:32,544 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:32,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:32,557 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 02:39:32,584 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 02:39:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:32,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:39:32,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:32,701 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 02:39:32,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:32,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:32,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920010704] [2023-12-22 02:39:32,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920010704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:32,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:32,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:32,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638490233] [2023-12-22 02:39:32,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:32,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:39:32,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:32,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:39:32,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:32,702 INFO L87 Difference]: Start difference. First operand 2718 states and 3628 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:33,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:33,245 INFO L93 Difference]: Finished difference Result 3446 states and 4555 transitions. [2023-12-22 02:39:33,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:39:33,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 81 [2023-12-22 02:39:33,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:33,252 INFO L225 Difference]: With dead ends: 3446 [2023-12-22 02:39:33,252 INFO L226 Difference]: Without dead ends: 2822 [2023-12-22 02:39:33,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 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 02:39:33,254 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 486 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:33,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 509 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:39:33,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2023-12-22 02:39:33,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 2766. [2023-12-22 02:39:33,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2207 states have (on average 1.3244222927050295) internal successors, (2923), 2240 states have internal predecessors, (2923), 300 states have call successors, (300), 199 states have call predecessors, (300), 257 states have return successors, (438), 331 states have call predecessors, (438), 298 states have call successors, (438) [2023-12-22 02:39:33,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3661 transitions. [2023-12-22 02:39:33,433 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3661 transitions. Word has length 81 [2023-12-22 02:39:33,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:33,433 INFO L495 AbstractCegarLoop]: Abstraction has 2766 states and 3661 transitions. [2023-12-22 02:39:33,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 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 02:39:33,433 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3661 transitions. [2023-12-22 02:39:33,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-22 02:39:33,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:33,435 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] [2023-12-22 02:39:33,442 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 02:39:33,639 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 02:39:33,640 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:33,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:33,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1436587847, now seen corresponding path program 1 times [2023-12-22 02:39:33,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:33,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1563189562] [2023-12-22 02:39:33,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:33,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:33,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:33,642 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 02:39:33,662 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 02:39:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:33,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:39:33,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:33,798 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 02:39:33,798 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:33,798 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:33,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1563189562] [2023-12-22 02:39:33,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1563189562] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:33,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:33,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:39:33,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749043630] [2023-12-22 02:39:33,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:33,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:39:33,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:33,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:39:33,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:33,800 INFO L87 Difference]: Start difference. First operand 2766 states and 3661 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 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 02:39:34,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:34,069 INFO L93 Difference]: Finished difference Result 4083 states and 5286 transitions. [2023-12-22 02:39:34,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:39:34,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 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 81 [2023-12-22 02:39:34,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:34,076 INFO L225 Difference]: With dead ends: 4083 [2023-12-22 02:39:34,076 INFO L226 Difference]: Without dead ends: 3412 [2023-12-22 02:39:34,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:34,078 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 281 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:34,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 553 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:39:34,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3412 states. [2023-12-22 02:39:34,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3412 to 3410. [2023-12-22 02:39:34,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 2785 states have (on average 1.2998204667863555) internal successors, (3620), 2821 states have internal predecessors, (3620), 335 states have call successors, (335), 229 states have call predecessors, (335), 288 states have return successors, (474), 364 states have call predecessors, (474), 333 states have call successors, (474) [2023-12-22 02:39:34,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 4429 transitions. [2023-12-22 02:39:34,278 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 4429 transitions. Word has length 81 [2023-12-22 02:39:34,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:34,278 INFO L495 AbstractCegarLoop]: Abstraction has 3410 states and 4429 transitions. [2023-12-22 02:39:34,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 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 02:39:34,278 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 4429 transitions. [2023-12-22 02:39:34,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-22 02:39:34,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:34,284 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:39:34,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-22 02:39:34,488 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 02:39:34,488 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:34,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:34,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1087765725, now seen corresponding path program 1 times [2023-12-22 02:39:34,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:34,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163766686] [2023-12-22 02:39:34,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:34,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:34,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:34,491 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 02:39:34,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-22 02:39:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:34,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:39:34,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:34,628 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-22 02:39:34,628 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:34,629 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:34,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163766686] [2023-12-22 02:39:34,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163766686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:34,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:34,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:39:34,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950226918] [2023-12-22 02:39:34,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:34,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:39:34,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:34,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:39:34,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:39:34,630 INFO L87 Difference]: Start difference. First operand 3410 states and 4429 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-22 02:39:34,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:34,965 INFO L93 Difference]: Finished difference Result 5526 states and 7350 transitions. [2023-12-22 02:39:34,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:39:34,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2023-12-22 02:39:34,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:34,976 INFO L225 Difference]: With dead ends: 5526 [2023-12-22 02:39:34,976 INFO L226 Difference]: Without dead ends: 3468 [2023-12-22 02:39:34,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-22 02:39:34,981 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 32 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:34,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 1696 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:39:34,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3468 states. [2023-12-22 02:39:35,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3468 to 3224. [2023-12-22 02:39:35,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3224 states, 2671 states have (on average 1.286035192811681) internal successors, (3435), 2688 states have internal predecessors, (3435), 287 states have call successors, (287), 204 states have call predecessors, (287), 264 states have return successors, (431), 336 states have call predecessors, (431), 285 states have call successors, (431) [2023-12-22 02:39:35,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3224 states to 3224 states and 4153 transitions. [2023-12-22 02:39:35,248 INFO L78 Accepts]: Start accepts. Automaton has 3224 states and 4153 transitions. Word has length 138 [2023-12-22 02:39:35,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:35,248 INFO L495 AbstractCegarLoop]: Abstraction has 3224 states and 4153 transitions. [2023-12-22 02:39:35,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-22 02:39:35,248 INFO L276 IsEmpty]: Start isEmpty. Operand 3224 states and 4153 transitions. [2023-12-22 02:39:35,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-22 02:39:35,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:35,254 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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] [2023-12-22 02:39:35,261 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 02:39:35,458 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 02:39:35,459 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:35,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:35,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1319378042, now seen corresponding path program 1 times [2023-12-22 02:39:35,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:35,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364735119] [2023-12-22 02:39:35,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:35,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:35,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:35,485 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 02:39:35,524 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 02:39:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:35,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:39:35,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:35,605 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-12-22 02:39:35,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:35,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:35,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364735119] [2023-12-22 02:39:35,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364735119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:35,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:35,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:39:35,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574036564] [2023-12-22 02:39:35,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:35,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:39:35,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:35,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:39:35,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:35,608 INFO L87 Difference]: Start difference. First operand 3224 states and 4153 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-22 02:39:35,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:35,915 INFO L93 Difference]: Finished difference Result 4342 states and 5653 transitions. [2023-12-22 02:39:35,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:39:35,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 139 [2023-12-22 02:39:35,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:35,924 INFO L225 Difference]: With dead ends: 4342 [2023-12-22 02:39:35,924 INFO L226 Difference]: Without dead ends: 2488 [2023-12-22 02:39:35,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:35,947 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 138 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:35,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 543 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:39:35,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2023-12-22 02:39:36,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2488. [2023-12-22 02:39:36,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 2097 states have (on average 1.274201239866476) internal successors, (2672), 2110 states have internal predecessors, (2672), 199 states have call successors, (199), 148 states have call predecessors, (199), 190 states have return successors, (289), 230 states have call predecessors, (289), 197 states have call successors, (289) [2023-12-22 02:39:36,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3160 transitions. [2023-12-22 02:39:36,165 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3160 transitions. Word has length 139 [2023-12-22 02:39:36,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:36,165 INFO L495 AbstractCegarLoop]: Abstraction has 2488 states and 3160 transitions. [2023-12-22 02:39:36,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-22 02:39:36,165 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3160 transitions. [2023-12-22 02:39:36,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-22 02:39:36,168 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:36,168 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:39:36,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-22 02:39:36,372 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 02:39:36,374 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:36,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:36,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1764740713, now seen corresponding path program 1 times [2023-12-22 02:39:36,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:36,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608902219] [2023-12-22 02:39:36,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:36,375 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:36,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:36,377 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 02:39:36,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-22 02:39:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:36,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:39:36,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:36,608 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-22 02:39:36,608 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:36,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:36,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608902219] [2023-12-22 02:39:36,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608902219] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:36,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:36,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:39:36,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892853453] [2023-12-22 02:39:36,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:36,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:39:36,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:36,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:39:36,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:36,610 INFO L87 Difference]: Start difference. First operand 2488 states and 3160 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 02:39:36,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:36,917 INFO L93 Difference]: Finished difference Result 4927 states and 6139 transitions. [2023-12-22 02:39:36,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:39:36,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 131 [2023-12-22 02:39:36,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:36,928 INFO L225 Difference]: With dead ends: 4927 [2023-12-22 02:39:36,928 INFO L226 Difference]: Without dead ends: 3612 [2023-12-22 02:39:36,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:36,931 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 274 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:36,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 554 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:39:36,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3612 states. [2023-12-22 02:39:37,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3612 to 3606. [2023-12-22 02:39:37,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3606 states, 3099 states have (on average 1.249435301710229) internal successors, (3872), 3116 states have internal predecessors, (3872), 261 states have call successors, (261), 200 states have call predecessors, (261), 244 states have return successors, (353), 290 states have call predecessors, (353), 259 states have call successors, (353) [2023-12-22 02:39:37,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3606 states to 3606 states and 4486 transitions. [2023-12-22 02:39:37,122 INFO L78 Accepts]: Start accepts. Automaton has 3606 states and 4486 transitions. Word has length 131 [2023-12-22 02:39:37,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:37,122 INFO L495 AbstractCegarLoop]: Abstraction has 3606 states and 4486 transitions. [2023-12-22 02:39:37,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 02:39:37,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3606 states and 4486 transitions. [2023-12-22 02:39:37,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-22 02:39:37,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:37,126 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:39:37,131 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 (28)] Ended with exit code 0 [2023-12-22 02:39:37,330 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 02:39:37,331 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:37,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:37,331 INFO L85 PathProgramCache]: Analyzing trace with hash 913284746, now seen corresponding path program 1 times [2023-12-22 02:39:37,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:37,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779879533] [2023-12-22 02:39:37,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:37,332 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:37,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:37,333 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 02:39:37,361 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 02:39:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:37,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:39:37,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:37,614 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 02:39:37,614 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:37,614 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:37,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779879533] [2023-12-22 02:39:37,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779879533] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:37,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:37,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:37,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479597127] [2023-12-22 02:39:37,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:37,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:39:37,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:37,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:39:37,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:39:37,616 INFO L87 Difference]: Start difference. First operand 3606 states and 4486 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 02:39:38,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:38,304 INFO L93 Difference]: Finished difference Result 8355 states and 10188 transitions. [2023-12-22 02:39:38,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:39:38,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 131 [2023-12-22 02:39:38,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:38,337 INFO L225 Difference]: With dead ends: 8355 [2023-12-22 02:39:38,337 INFO L226 Difference]: Without dead ends: 5923 [2023-12-22 02:39:38,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:38,355 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 440 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:38,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 662 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:39:38,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5923 states. [2023-12-22 02:39:38,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5923 to 5921. [2023-12-22 02:39:38,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5921 states, 5171 states have (on average 1.2249081415586927) internal successors, (6334), 5201 states have internal predecessors, (6334), 388 states have call successors, (388), 304 states have call predecessors, (388), 360 states have return successors, (516), 417 states have call predecessors, (516), 386 states have call successors, (516) [2023-12-22 02:39:38,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5921 states to 5921 states and 7238 transitions. [2023-12-22 02:39:38,656 INFO L78 Accepts]: Start accepts. Automaton has 5921 states and 7238 transitions. Word has length 131 [2023-12-22 02:39:38,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:38,656 INFO L495 AbstractCegarLoop]: Abstraction has 5921 states and 7238 transitions. [2023-12-22 02:39:38,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 02:39:38,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5921 states and 7238 transitions. [2023-12-22 02:39:38,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-22 02:39:38,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:38,662 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:39:38,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-22 02:39:38,867 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 02:39:38,867 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:38,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:38,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1860322632, now seen corresponding path program 1 times [2023-12-22 02:39:38,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:38,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385883967] [2023-12-22 02:39:38,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:38,868 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:38,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:38,879 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 02:39:38,882 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 02:39:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:38,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:39:38,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:38,984 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-22 02:39:38,984 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:38,984 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:38,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385883967] [2023-12-22 02:39:38,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385883967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:38,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:38,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:39:38,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108851578] [2023-12-22 02:39:38,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:38,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:39:38,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:38,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:39:38,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:38,986 INFO L87 Difference]: Start difference. First operand 5921 states and 7238 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, (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 02:39:39,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:39,332 INFO L93 Difference]: Finished difference Result 9555 states and 11565 transitions. [2023-12-22 02:39:39,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:39:39,333 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, (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 131 [2023-12-22 02:39:39,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:39,345 INFO L225 Difference]: With dead ends: 9555 [2023-12-22 02:39:39,345 INFO L226 Difference]: Without dead ends: 4808 [2023-12-22 02:39:39,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:39,355 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 217 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:39,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 471 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:39:39,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4808 states. [2023-12-22 02:39:39,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4808 to 4808. [2023-12-22 02:39:39,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4808 states, 4177 states have (on average 1.2312664591812306) internal successors, (5143), 4202 states have internal predecessors, (5143), 323 states have call successors, (323), 252 states have call predecessors, (323), 306 states have return successors, (437), 354 states have call predecessors, (437), 321 states have call successors, (437) [2023-12-22 02:39:39,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4808 states to 4808 states and 5903 transitions. [2023-12-22 02:39:39,715 INFO L78 Accepts]: Start accepts. Automaton has 4808 states and 5903 transitions. Word has length 131 [2023-12-22 02:39:39,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:39,716 INFO L495 AbstractCegarLoop]: Abstraction has 4808 states and 5903 transitions. [2023-12-22 02:39:39,716 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, (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 02:39:39,716 INFO L276 IsEmpty]: Start isEmpty. Operand 4808 states and 5903 transitions. [2023-12-22 02:39:39,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-22 02:39:39,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:39,721 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:39:39,728 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 (30)] Forceful destruction successful, exit code 0 [2023-12-22 02:39:39,925 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 02:39:39,926 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:39,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:39,926 INFO L85 PathProgramCache]: Analyzing trace with hash 822111322, now seen corresponding path program 1 times [2023-12-22 02:39:39,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:39,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510340022] [2023-12-22 02:39:39,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:39,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:39,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:39,928 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 02:39:39,929 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 02:39:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:40,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:39:40,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:40,137 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-22 02:39:40,137 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:40,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:40,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [510340022] [2023-12-22 02:39:40,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [510340022] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:40,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:40,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:39:40,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563703097] [2023-12-22 02:39:40,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:40,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:39:40,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:40,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:39:40,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:40,139 INFO L87 Difference]: Start difference. First operand 4808 states and 5903 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-22 02:39:40,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:40,463 INFO L93 Difference]: Finished difference Result 6662 states and 8457 transitions. [2023-12-22 02:39:40,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:39:40,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 141 [2023-12-22 02:39:40,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:40,475 INFO L225 Difference]: With dead ends: 6662 [2023-12-22 02:39:40,475 INFO L226 Difference]: Without dead ends: 5644 [2023-12-22 02:39:40,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:40,478 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 64 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:40,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 671 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:39:40,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5644 states. [2023-12-22 02:39:40,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5644 to 5628. [2023-12-22 02:39:40,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5628 states, 4820 states have (on average 1.2477178423236515) internal successors, (6014), 4854 states have internal predecessors, (6014), 407 states have call successors, (407), 312 states have call predecessors, (407), 399 states have return successors, (587), 462 states have call predecessors, (587), 405 states have call successors, (587) [2023-12-22 02:39:40,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5628 states to 5628 states and 7008 transitions. [2023-12-22 02:39:40,870 INFO L78 Accepts]: Start accepts. Automaton has 5628 states and 7008 transitions. Word has length 141 [2023-12-22 02:39:40,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:40,870 INFO L495 AbstractCegarLoop]: Abstraction has 5628 states and 7008 transitions. [2023-12-22 02:39:40,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-22 02:39:40,870 INFO L276 IsEmpty]: Start isEmpty. Operand 5628 states and 7008 transitions. [2023-12-22 02:39:40,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-22 02:39:40,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:40,874 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:39:40,892 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 02:39:41,078 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 02:39:41,078 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:41,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:41,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1264955440, now seen corresponding path program 1 times [2023-12-22 02:39:41,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:41,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217286251] [2023-12-22 02:39:41,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:41,079 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:41,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:41,080 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 02:39:41,081 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 02:39:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:41,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:39:41,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:41,204 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-22 02:39:41,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:41,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:41,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217286251] [2023-12-22 02:39:41,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217286251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:41,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:41,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:39:41,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768151894] [2023-12-22 02:39:41,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:41,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:39:41,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:41,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:39:41,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:41,205 INFO L87 Difference]: Start difference. First operand 5628 states and 7008 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-22 02:39:41,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:41,771 INFO L93 Difference]: Finished difference Result 9088 states and 11957 transitions. [2023-12-22 02:39:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:39:41,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 142 [2023-12-22 02:39:41,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:41,786 INFO L225 Difference]: With dead ends: 9088 [2023-12-22 02:39:41,786 INFO L226 Difference]: Without dead ends: 7250 [2023-12-22 02:39:41,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:41,790 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 94 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:41,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 709 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:39:41,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7250 states. [2023-12-22 02:39:42,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7250 to 7222. [2023-12-22 02:39:42,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7222 states, 6067 states have (on average 1.2582825119498928) internal successors, (7634), 6106 states have internal predecessors, (7634), 581 states have call successors, (581), 432 states have call predecessors, (581), 572 states have return successors, (972), 684 states have call predecessors, (972), 579 states have call successors, (972) [2023-12-22 02:39:42,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7222 states to 7222 states and 9187 transitions. [2023-12-22 02:39:42,253 INFO L78 Accepts]: Start accepts. Automaton has 7222 states and 9187 transitions. Word has length 142 [2023-12-22 02:39:42,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:42,253 INFO L495 AbstractCegarLoop]: Abstraction has 7222 states and 9187 transitions. [2023-12-22 02:39:42,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-22 02:39:42,253 INFO L276 IsEmpty]: Start isEmpty. Operand 7222 states and 9187 transitions. [2023-12-22 02:39:42,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-22 02:39:42,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:42,258 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:39:42,262 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 02:39:42,462 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 02:39:42,463 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:42,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:42,463 INFO L85 PathProgramCache]: Analyzing trace with hash 638172751, now seen corresponding path program 1 times [2023-12-22 02:39:42,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:42,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886691468] [2023-12-22 02:39:42,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:42,464 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:42,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:42,465 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 02:39:42,467 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 02:39:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:42,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:39:42,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:42,682 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 02:39:42,683 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:42,683 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:42,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886691468] [2023-12-22 02:39:42,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886691468] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:42,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:42,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:42,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951591467] [2023-12-22 02:39:42,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:42,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:39:42,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:42,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:39:42,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:39:42,684 INFO L87 Difference]: Start difference. First operand 7222 states and 9187 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 02:39:43,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:43,515 INFO L93 Difference]: Finished difference Result 14034 states and 17303 transitions. [2023-12-22 02:39:43,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:39:43,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 133 [2023-12-22 02:39:43,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:43,539 INFO L225 Difference]: With dead ends: 14034 [2023-12-22 02:39:43,539 INFO L226 Difference]: Without dead ends: 10400 [2023-12-22 02:39:43,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:43,547 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 431 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:43,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 641 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:39:43,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10400 states. [2023-12-22 02:39:44,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10400 to 10398. [2023-12-22 02:39:44,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10398 states, 8908 states have (on average 1.2350696003592276) internal successors, (11002), 8968 states have internal predecessors, (11002), 754 states have call successors, (754), 572 states have call predecessors, (754), 734 states have return successors, (1191), 859 states have call predecessors, (1191), 752 states have call successors, (1191) [2023-12-22 02:39:44,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10398 states to 10398 states and 12947 transitions. [2023-12-22 02:39:44,194 INFO L78 Accepts]: Start accepts. Automaton has 10398 states and 12947 transitions. Word has length 133 [2023-12-22 02:39:44,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:44,196 INFO L495 AbstractCegarLoop]: Abstraction has 10398 states and 12947 transitions. [2023-12-22 02:39:44,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 02:39:44,196 INFO L276 IsEmpty]: Start isEmpty. Operand 10398 states and 12947 transitions. [2023-12-22 02:39:44,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-22 02:39:44,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:44,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:39:44,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-22 02:39:44,408 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 02:39:44,408 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:44,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:44,409 INFO L85 PathProgramCache]: Analyzing trace with hash -68423855, now seen corresponding path program 1 times [2023-12-22 02:39:44,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:44,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193078042] [2023-12-22 02:39:44,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:44,409 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:44,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:44,411 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 02:39:44,412 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 02:39:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:44,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:39:44,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:44,517 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-22 02:39:44,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:44,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:44,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193078042] [2023-12-22 02:39:44,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [193078042] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:44,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:44,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:39:44,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840297710] [2023-12-22 02:39:44,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:44,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:39:44,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:44,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:39:44,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:44,519 INFO L87 Difference]: Start difference. First operand 10398 states and 12947 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 02:39:45,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:45,121 INFO L93 Difference]: Finished difference Result 17202 states and 21024 transitions. [2023-12-22 02:39:45,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:39:45,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 133 [2023-12-22 02:39:45,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:45,148 INFO L225 Difference]: With dead ends: 17202 [2023-12-22 02:39:45,148 INFO L226 Difference]: Without dead ends: 10392 [2023-12-22 02:39:45,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:45,164 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 215 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:45,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 470 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:39:45,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10392 states. [2023-12-22 02:39:45,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10392 to 10392. [2023-12-22 02:39:45,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10392 states, 8905 states have (on average 1.2349241998877036) internal successors, (10997), 8964 states have internal predecessors, (10997), 751 states have call successors, (751), 572 states have call predecessors, (751), 734 states have return successors, (1188), 856 states have call predecessors, (1188), 749 states have call successors, (1188) [2023-12-22 02:39:45,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10392 states to 10392 states and 12936 transitions. [2023-12-22 02:39:45,866 INFO L78 Accepts]: Start accepts. Automaton has 10392 states and 12936 transitions. Word has length 133 [2023-12-22 02:39:45,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:45,866 INFO L495 AbstractCegarLoop]: Abstraction has 10392 states and 12936 transitions. [2023-12-22 02:39:45,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 02:39:45,866 INFO L276 IsEmpty]: Start isEmpty. Operand 10392 states and 12936 transitions. [2023-12-22 02:39:45,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-22 02:39:45,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:45,875 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:39:45,881 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 02:39:46,079 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 02:39:46,079 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:46,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:46,080 INFO L85 PathProgramCache]: Analyzing trace with hash 887078848, now seen corresponding path program 1 times [2023-12-22 02:39:46,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:46,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408904131] [2023-12-22 02:39:46,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:46,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:46,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:46,082 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 02:39:46,082 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 02:39:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:46,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:39:46,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:46,274 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-22 02:39:46,274 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:46,274 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:46,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408904131] [2023-12-22 02:39:46,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408904131] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:46,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:46,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:39:46,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455147034] [2023-12-22 02:39:46,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:46,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:39:46,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:46,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:39:46,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:46,276 INFO L87 Difference]: Start difference. First operand 10392 states and 12936 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-22 02:39:47,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:47,302 INFO L93 Difference]: Finished difference Result 17192 states and 22337 transitions. [2023-12-22 02:39:47,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:39:47,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 143 [2023-12-22 02:39:47,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:47,337 INFO L225 Difference]: With dead ends: 17192 [2023-12-22 02:39:47,338 INFO L226 Difference]: Without dead ends: 13760 [2023-12-22 02:39:47,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:47,349 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 68 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:47,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 674 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:39:47,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13760 states. [2023-12-22 02:39:48,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13760 to 13756. [2023-12-22 02:39:48,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13756 states, 11540 states have (on average 1.2505199306759098) internal successors, (14431), 11622 states have internal predecessors, (14431), 1117 states have call successors, (1117), 824 states have call predecessors, (1117), 1097 states have return successors, (1882), 1310 states have call predecessors, (1882), 1115 states have call successors, (1882) [2023-12-22 02:39:48,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13756 states to 13756 states and 17430 transitions. [2023-12-22 02:39:48,331 INFO L78 Accepts]: Start accepts. Automaton has 13756 states and 17430 transitions. Word has length 143 [2023-12-22 02:39:48,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:48,332 INFO L495 AbstractCegarLoop]: Abstraction has 13756 states and 17430 transitions. [2023-12-22 02:39:48,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-22 02:39:48,332 INFO L276 IsEmpty]: Start isEmpty. Operand 13756 states and 17430 transitions. [2023-12-22 02:39:48,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-22 02:39:48,340 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:48,340 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:39:48,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-22 02:39:48,544 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 02:39:48,545 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:48,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:48,545 INFO L85 PathProgramCache]: Analyzing trace with hash 681521738, now seen corresponding path program 1 times [2023-12-22 02:39:48,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:48,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832371331] [2023-12-22 02:39:48,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:48,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:48,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:48,547 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 02:39:48,575 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 02:39:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:48,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:39:48,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:48,746 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 02:39:48,747 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:48,747 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:48,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832371331] [2023-12-22 02:39:48,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1832371331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:48,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:48,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:48,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967892583] [2023-12-22 02:39:48,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:48,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:39:48,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:48,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:39:48,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:39:48,748 INFO L87 Difference]: Start difference. First operand 13756 states and 17430 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 02:39:50,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:50,247 INFO L93 Difference]: Finished difference Result 26449 states and 32484 transitions. [2023-12-22 02:39:50,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:39:50,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 135 [2023-12-22 02:39:50,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:50,288 INFO L225 Difference]: With dead ends: 26449 [2023-12-22 02:39:50,288 INFO L226 Difference]: Without dead ends: 19645 [2023-12-22 02:39:50,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:50,346 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 428 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:50,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 603 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:39:50,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19645 states. [2023-12-22 02:39:51,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19645 to 19643. [2023-12-22 02:39:51,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19643 states, 16792 states have (on average 1.2280252501191042) internal successors, (20621), 16923 states have internal predecessors, (20621), 1436 states have call successors, (1436), 1080 states have call predecessors, (1436), 1413 states have return successors, (2309), 1641 states have call predecessors, (2309), 1434 states have call successors, (2309) [2023-12-22 02:39:51,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19643 states to 19643 states and 24366 transitions. [2023-12-22 02:39:51,572 INFO L78 Accepts]: Start accepts. Automaton has 19643 states and 24366 transitions. Word has length 135 [2023-12-22 02:39:51,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:51,573 INFO L495 AbstractCegarLoop]: Abstraction has 19643 states and 24366 transitions. [2023-12-22 02:39:51,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 02:39:51,573 INFO L276 IsEmpty]: Start isEmpty. Operand 19643 states and 24366 transitions. [2023-12-22 02:39:51,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-22 02:39:51,583 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:51,584 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:39:51,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-22 02:39:51,787 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 02:39:51,788 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:51,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:51,788 INFO L85 PathProgramCache]: Analyzing trace with hash 251863432, now seen corresponding path program 1 times [2023-12-22 02:39:51,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:51,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914463558] [2023-12-22 02:39:51,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:51,788 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:51,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:51,790 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 02:39:51,792 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 02:39:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:51,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:39:51,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:51,883 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-22 02:39:51,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:51,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:51,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914463558] [2023-12-22 02:39:51,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914463558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:51,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:51,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:39:51,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651488308] [2023-12-22 02:39:51,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:51,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:39:51,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:51,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:39:51,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:51,901 INFO L87 Difference]: Start difference. First operand 19643 states and 24366 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 02:39:53,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:53,225 INFO L93 Difference]: Finished difference Result 32329 states and 39371 transitions. [2023-12-22 02:39:53,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:39:53,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 135 [2023-12-22 02:39:53,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:53,265 INFO L225 Difference]: With dead ends: 32329 [2023-12-22 02:39:53,265 INFO L226 Difference]: Without dead ends: 19638 [2023-12-22 02:39:53,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:39:53,280 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 213 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:53,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 469 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:39:53,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19638 states. [2023-12-22 02:39:54,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19638 to 19638. [2023-12-22 02:39:54,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19638 states, 16790 states have (on average 1.2279928528886241) internal successors, (20618), 16920 states have internal predecessors, (20618), 1433 states have call successors, (1433), 1080 states have call predecessors, (1433), 1413 states have return successors, (2306), 1638 states have call predecessors, (2306), 1431 states have call successors, (2306) [2023-12-22 02:39:54,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19638 states to 19638 states and 24357 transitions. [2023-12-22 02:39:54,521 INFO L78 Accepts]: Start accepts. Automaton has 19638 states and 24357 transitions. Word has length 135 [2023-12-22 02:39:54,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:54,521 INFO L495 AbstractCegarLoop]: Abstraction has 19638 states and 24357 transitions. [2023-12-22 02:39:54,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 02:39:54,521 INFO L276 IsEmpty]: Start isEmpty. Operand 19638 states and 24357 transitions. [2023-12-22 02:39:54,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-22 02:39:54,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:54,531 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:39:54,540 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 02:39:54,735 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 02:39:54,736 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:54,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:54,736 INFO L85 PathProgramCache]: Analyzing trace with hash 2101107535, now seen corresponding path program 1 times [2023-12-22 02:39:54,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:54,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303105393] [2023-12-22 02:39:54,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:54,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:54,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:54,738 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 02:39:54,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-22 02:39:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:54,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:39:54,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:55,011 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 02:39:55,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:55,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:55,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303105393] [2023-12-22 02:39:55,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303105393] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:55,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:55,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:55,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412089101] [2023-12-22 02:39:55,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:55,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:39:55,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:55,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:39:55,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:39:55,013 INFO L87 Difference]: Start difference. First operand 19638 states and 24357 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 02:39:57,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:39:57,018 INFO L93 Difference]: Finished difference Result 43082 states and 52071 transitions. [2023-12-22 02:39:57,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:39:57,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 137 [2023-12-22 02:39:57,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:39:57,092 INFO L225 Difference]: With dead ends: 43082 [2023-12-22 02:39:57,092 INFO L226 Difference]: Without dead ends: 30396 [2023-12-22 02:39:57,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:57,116 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 434 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:39:57,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 484 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:39:57,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30396 states. [2023-12-22 02:39:58,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30396 to 30394. [2023-12-22 02:39:58,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30394 states, 26354 states have (on average 1.208696971996661) internal successors, (31854), 26592 states have internal predecessors, (31854), 2017 states have call successors, (2017), 1544 states have call predecessors, (2017), 2021 states have return successors, (3130), 2258 states have call predecessors, (3130), 2015 states have call successors, (3130) [2023-12-22 02:39:59,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30394 states to 30394 states and 37001 transitions. [2023-12-22 02:39:59,032 INFO L78 Accepts]: Start accepts. Automaton has 30394 states and 37001 transitions. Word has length 137 [2023-12-22 02:39:59,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:39:59,032 INFO L495 AbstractCegarLoop]: Abstraction has 30394 states and 37001 transitions. [2023-12-22 02:39:59,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 02:39:59,033 INFO L276 IsEmpty]: Start isEmpty. Operand 30394 states and 37001 transitions. [2023-12-22 02:39:59,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-22 02:39:59,048 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:39:59,049 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:39:59,056 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 02:39:59,256 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 02:39:59,257 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:39:59,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:39:59,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1890436321, now seen corresponding path program 1 times [2023-12-22 02:39:59,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:39:59,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503203897] [2023-12-22 02:39:59,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:39:59,257 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:39:59,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:39:59,259 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 02:39:59,260 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 02:39:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:39:59,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:39:59,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:39:59,386 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-12-22 02:39:59,386 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:39:59,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:39:59,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503203897] [2023-12-22 02:39:59,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503203897] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:39:59,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:39:59,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:39:59,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429116065] [2023-12-22 02:39:59,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:39:59,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:39:59,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:39:59,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:39:59,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:39:59,390 INFO L87 Difference]: Start difference. First operand 30394 states and 37001 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-22 02:40:02,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:40:02,186 INFO L93 Difference]: Finished difference Result 43841 states and 55095 transitions. [2023-12-22 02:40:02,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:40:02,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 147 [2023-12-22 02:40:02,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:40:02,387 INFO L225 Difference]: With dead ends: 43841 [2023-12-22 02:40:02,388 INFO L226 Difference]: Without dead ends: 36904 [2023-12-22 02:40:02,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 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 02:40:02,405 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 505 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:40:02,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 526 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:40:02,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36904 states. [2023-12-22 02:40:05,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36904 to 36880. [2023-12-22 02:40:05,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36880 states, 31360 states have (on average 1.2215561224489795) internal successors, (38308), 31663 states have internal predecessors, (38308), 2742 states have call successors, (2742), 2041 states have call predecessors, (2742), 2776 states have return successors, (4546), 3176 states have call predecessors, (4546), 2740 states have call successors, (4546) [2023-12-22 02:40:05,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36880 states to 36880 states and 45596 transitions. [2023-12-22 02:40:05,316 INFO L78 Accepts]: Start accepts. Automaton has 36880 states and 45596 transitions. Word has length 147 [2023-12-22 02:40:05,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:40:05,317 INFO L495 AbstractCegarLoop]: Abstraction has 36880 states and 45596 transitions. [2023-12-22 02:40:05,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-22 02:40:05,317 INFO L276 IsEmpty]: Start isEmpty. Operand 36880 states and 45596 transitions. [2023-12-22 02:40:05,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-22 02:40:05,328 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:40:05,328 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:40:05,334 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 02:40:05,532 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 02:40:05,532 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:40:05,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:40:05,533 INFO L85 PathProgramCache]: Analyzing trace with hash 56716810, now seen corresponding path program 1 times [2023-12-22 02:40:05,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:40:05,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886653878] [2023-12-22 02:40:05,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:40:05,533 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 02:40:05,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:40:05,535 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 02:40:05,631 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 02:40:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:40:05,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:40:05,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:40:05,743 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 02:40:05,743 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:40:05,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:40:05,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886653878] [2023-12-22 02:40:05,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886653878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:40:05,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:40:05,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:40:05,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012067005] [2023-12-22 02:40:05,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:40:05,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:40:05,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:40:05,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:40:05,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:40:05,745 INFO L87 Difference]: Start difference. First operand 36880 states and 45596 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 02:40:09,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:40:09,216 INFO L93 Difference]: Finished difference Result 79034 states and 95640 transitions. [2023-12-22 02:40:09,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:40:09,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 139 [2023-12-22 02:40:09,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:40:09,325 INFO L225 Difference]: With dead ends: 79034 [2023-12-22 02:40:09,325 INFO L226 Difference]: Without dead ends: 46348 [2023-12-22 02:40:09,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 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 02:40:09,359 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 176 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:40:09,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 835 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:40:09,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46348 states. [2023-12-22 02:40:13,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46348 to 46348. [2023-12-22 02:40:13,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46348 states, 39788 states have (on average 1.2112445963607117) internal successors, (48193), 40147 states have internal predecessors, (48193), 3278 states have call successors, (3278), 2457 states have call predecessors, (3278), 3280 states have return successors, (5308), 3744 states have call predecessors, (5308), 3276 states have call successors, (5308) [2023-12-22 02:40:13,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46348 states to 46348 states and 56779 transitions. [2023-12-22 02:40:13,175 INFO L78 Accepts]: Start accepts. Automaton has 46348 states and 56779 transitions. Word has length 139 [2023-12-22 02:40:13,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:40:13,175 INFO L495 AbstractCegarLoop]: Abstraction has 46348 states and 56779 transitions. [2023-12-22 02:40:13,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 02:40:13,175 INFO L276 IsEmpty]: Start isEmpty. Operand 46348 states and 56779 transitions. [2023-12-22 02:40:13,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-22 02:40:13,193 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:40:13,194 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:40:13,198 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 02:40:13,398 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 02:40:13,398 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:40:13,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:40:13,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1986521991, now seen corresponding path program 1 times [2023-12-22 02:40:13,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:40:13,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468477152] [2023-12-22 02:40:13,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:40:13,471 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 02:40:13,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:40:13,472 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 02:40:13,482 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 02:40:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:40:13,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:40:13,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:40:13,584 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-22 02:40:13,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:40:13,585 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:40:13,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468477152] [2023-12-22 02:40:13,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [468477152] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:40:13,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:40:13,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:40:13,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034606931] [2023-12-22 02:40:13,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:40:13,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:40:13,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:40:13,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:40:13,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:40:13,586 INFO L87 Difference]: Start difference. First operand 46348 states and 56779 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-22 02:40:16,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:40:16,631 INFO L93 Difference]: Finished difference Result 59660 states and 74563 transitions. [2023-12-22 02:40:16,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:40:16,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 164 [2023-12-22 02:40:16,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:40:16,736 INFO L225 Difference]: With dead ends: 59660 [2023-12-22 02:40:16,736 INFO L226 Difference]: Without dead ends: 46304 [2023-12-22 02:40:16,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 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 02:40:16,760 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 103 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:40:16,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 706 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:40:16,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46304 states. [2023-12-22 02:40:20,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46304 to 46300. [2023-12-22 02:40:20,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46300 states, 39740 states have (on average 1.206064418721691) internal successors, (47929), 40123 states have internal predecessors, (47929), 3278 states have call successors, (3278), 2457 states have call predecessors, (3278), 3280 states have return successors, (5020), 3720 states have call predecessors, (5020), 3276 states have call successors, (5020) [2023-12-22 02:40:20,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46300 states to 46300 states and 56227 transitions. [2023-12-22 02:40:20,312 INFO L78 Accepts]: Start accepts. Automaton has 46300 states and 56227 transitions. Word has length 164 [2023-12-22 02:40:20,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:40:20,312 INFO L495 AbstractCegarLoop]: Abstraction has 46300 states and 56227 transitions. [2023-12-22 02:40:20,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-22 02:40:20,313 INFO L276 IsEmpty]: Start isEmpty. Operand 46300 states and 56227 transitions. [2023-12-22 02:40:20,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:40:20,325 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:40:20,326 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:40:20,330 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2023-12-22 02:40:20,530 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 02:40:20,530 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:40:20,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:40:20,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1493733727, now seen corresponding path program 1 times [2023-12-22 02:40:20,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:40:20,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475269756] [2023-12-22 02:40:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:40:20,531 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 02:40:20,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:40:20,533 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 02:40:20,534 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 02:40:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:40:20,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:40:20,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:40:20,671 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-22 02:40:20,672 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:40:20,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:40:20,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475269756] [2023-12-22 02:40:20,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475269756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:40:20,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:40:20,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:40:20,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112533050] [2023-12-22 02:40:20,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:40:20,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:40:20,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:40:20,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:40:20,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:40:20,674 INFO L87 Difference]: Start difference. First operand 46300 states and 56227 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-22 02:40:24,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:40:24,156 INFO L93 Difference]: Finished difference Result 55132 states and 68299 transitions. [2023-12-22 02:40:24,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:40:24,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 171 [2023-12-22 02:40:24,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:40:24,228 INFO L225 Difference]: With dead ends: 55132 [2023-12-22 02:40:24,228 INFO L226 Difference]: Without dead ends: 32923 [2023-12-22 02:40:24,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 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 02:40:24,258 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 82 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:40:24,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 739 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:40:24,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32923 states. [2023-12-22 02:40:25,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32923 to 32923. [2023-12-22 02:40:26,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32923 states, 29350 states have (on average 1.1787393526405452) internal successors, (34596), 29599 states have internal predecessors, (34596), 1804 states have call successors, (1804), 1440 states have call predecessors, (1804), 1768 states have return successors, (2450), 1884 states have call predecessors, (2450), 1804 states have call successors, (2450) [2023-12-22 02:40:26,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32923 states to 32923 states and 38850 transitions. [2023-12-22 02:40:26,065 INFO L78 Accepts]: Start accepts. Automaton has 32923 states and 38850 transitions. Word has length 171 [2023-12-22 02:40:26,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:40:26,066 INFO L495 AbstractCegarLoop]: Abstraction has 32923 states and 38850 transitions. [2023-12-22 02:40:26,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-22 02:40:26,066 INFO L276 IsEmpty]: Start isEmpty. Operand 32923 states and 38850 transitions. [2023-12-22 02:40:26,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-22 02:40:26,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:40:26,079 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:40:26,083 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 02:40:26,283 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 02:40:26,284 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:40:26,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:40:26,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1866031853, now seen corresponding path program 1 times [2023-12-22 02:40:26,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:40:26,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329611592] [2023-12-22 02:40:26,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:40:26,285 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 02:40:26,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:40:26,286 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 02:40:26,290 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 02:40:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:40:26,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:40:26,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:40:26,494 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 02:40:26,495 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:40:26,495 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:40:26,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329611592] [2023-12-22 02:40:26,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [329611592] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:40:26,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:40:26,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:40:26,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849553583] [2023-12-22 02:40:26,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:40:26,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:40:26,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:40:26,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:40:26,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:40:26,496 INFO L87 Difference]: Start difference. First operand 32923 states and 38850 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-22 02:40:28,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:40:28,848 INFO L93 Difference]: Finished difference Result 75266 states and 89034 transitions. [2023-12-22 02:40:28,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:40:28,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 175 [2023-12-22 02:40:28,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:40:28,938 INFO L225 Difference]: With dead ends: 75266 [2023-12-22 02:40:28,939 INFO L226 Difference]: Without dead ends: 42355 [2023-12-22 02:40:28,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 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 02:40:28,971 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 101 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:40:28,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 382 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:40:28,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42355 states. [2023-12-22 02:40:31,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42355 to 42283. [2023-12-22 02:40:31,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42283 states, 37678 states have (on average 1.170975104835713) internal successors, (44120), 37979 states have internal predecessors, (44120), 2340 states have call successors, (2340), 1856 states have call predecessors, (2340), 2264 states have return successors, (3150), 2448 states have call predecessors, (3150), 2340 states have call successors, (3150) [2023-12-22 02:40:31,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42283 states to 42283 states and 49610 transitions. [2023-12-22 02:40:31,376 INFO L78 Accepts]: Start accepts. Automaton has 42283 states and 49610 transitions. Word has length 175 [2023-12-22 02:40:31,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:40:31,376 INFO L495 AbstractCegarLoop]: Abstraction has 42283 states and 49610 transitions. [2023-12-22 02:40:31,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-22 02:40:31,376 INFO L276 IsEmpty]: Start isEmpty. Operand 42283 states and 49610 transitions. [2023-12-22 02:40:31,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-22 02:40:31,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:40:31,398 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:40:31,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2023-12-22 02:40:31,602 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 02:40:31,603 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:40:31,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:40:31,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1537829952, now seen corresponding path program 1 times [2023-12-22 02:40:31,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:40:31,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851027122] [2023-12-22 02:40:31,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:40:31,604 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 02:40:31,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:40:31,605 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 02:40:31,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2023-12-22 02:40:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:40:31,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:40:31,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:40:31,789 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-22 02:40:31,790 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:40:31,790 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:40:31,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851027122] [2023-12-22 02:40:31,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851027122] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:40:31,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:40:31,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:40:31,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488304303] [2023-12-22 02:40:31,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:40:31,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:40:31,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:40:31,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:40:31,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:40:31,791 INFO L87 Difference]: Start difference. First operand 42283 states and 49610 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-22 02:40:34,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:40:34,520 INFO L93 Difference]: Finished difference Result 85027 states and 100003 transitions. [2023-12-22 02:40:34,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:40:34,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 199 [2023-12-22 02:40:34,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:40:34,613 INFO L225 Difference]: With dead ends: 85027 [2023-12-22 02:40:34,613 INFO L226 Difference]: Without dead ends: 42757 [2023-12-22 02:40:34,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 197 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 02:40:34,652 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 265 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:40:34,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 392 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:40:34,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42757 states. [2023-12-22 02:40:37,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42757 to 42757. [2023-12-22 02:40:37,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42757 states, 38104 states have (on average 1.1631324795297082) internal successors, (44320), 38429 states have internal predecessors, (44320), 2340 states have call successors, (2340), 1856 states have call predecessors, (2340), 2312 states have return successors, (2928), 2472 states have call predecessors, (2928), 2340 states have call successors, (2928) [2023-12-22 02:40:37,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42757 states to 42757 states and 49588 transitions. [2023-12-22 02:40:37,168 INFO L78 Accepts]: Start accepts. Automaton has 42757 states and 49588 transitions. Word has length 199 [2023-12-22 02:40:37,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:40:37,169 INFO L495 AbstractCegarLoop]: Abstraction has 42757 states and 49588 transitions. [2023-12-22 02:40:37,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-22 02:40:37,169 INFO L276 IsEmpty]: Start isEmpty. Operand 42757 states and 49588 transitions. [2023-12-22 02:40:37,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-22 02:40:37,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:40:37,189 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:40:37,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Ended with exit code 0 [2023-12-22 02:40:37,393 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 02:40:37,393 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:40:37,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:40:37,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1131080492, now seen corresponding path program 1 times [2023-12-22 02:40:37,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:40:37,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147074055] [2023-12-22 02:40:37,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:40:37,394 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 02:40:37,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:40:37,395 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 02:40:37,397 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 02:40:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:40:37,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:40:37,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:40:37,569 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-22 02:40:37,569 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:40:37,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:40:37,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147074055] [2023-12-22 02:40:37,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147074055] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:40:37,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:40:37,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:40:37,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96348105] [2023-12-22 02:40:37,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:40:37,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:40:37,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:40:37,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:40:37,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:40:37,571 INFO L87 Difference]: Start difference. First operand 42757 states and 49588 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-22 02:40:39,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:40:39,925 INFO L93 Difference]: Finished difference Result 76181 states and 88542 transitions. [2023-12-22 02:40:39,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:40:39,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 200 [2023-12-22 02:40:39,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:40:40,028 INFO L225 Difference]: With dead ends: 76181 [2023-12-22 02:40:40,028 INFO L226 Difference]: Without dead ends: 42759 [2023-12-22 02:40:40,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 198 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 02:40:40,058 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 168 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:40:40,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 556 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:40:40,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42759 states. [2023-12-22 02:40:42,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42759 to 42757. [2023-12-22 02:40:42,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42757 states, 38104 states have (on average 1.1611904262019734) internal successors, (44246), 38429 states have internal predecessors, (44246), 2340 states have call successors, (2340), 1856 states have call predecessors, (2340), 2312 states have return successors, (2922), 2472 states have call predecessors, (2922), 2340 states have call successors, (2922) [2023-12-22 02:40:42,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42757 states to 42757 states and 49508 transitions. [2023-12-22 02:40:42,521 INFO L78 Accepts]: Start accepts. Automaton has 42757 states and 49508 transitions. Word has length 200 [2023-12-22 02:40:42,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:40:42,521 INFO L495 AbstractCegarLoop]: Abstraction has 42757 states and 49508 transitions. [2023-12-22 02:40:42,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-22 02:40:42,521 INFO L276 IsEmpty]: Start isEmpty. Operand 42757 states and 49508 transitions. [2023-12-22 02:40:42,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-22 02:40:42,547 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:40:42,547 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:40:42,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2023-12-22 02:40:42,751 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 02:40:42,751 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:40:42,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:40:42,751 INFO L85 PathProgramCache]: Analyzing trace with hash 128183822, now seen corresponding path program 1 times [2023-12-22 02:40:42,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:40:42,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1931276344] [2023-12-22 02:40:42,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:40:42,752 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:40:42,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:40:42,753 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 02:40:42,754 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 02:40:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:40:42,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:40:42,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:40:43,060 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-22 02:40:43,061 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:40:43,061 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:40:43,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1931276344] [2023-12-22 02:40:43,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1931276344] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:40:43,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:40:43,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:40:43,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708856352] [2023-12-22 02:40:43,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:40:43,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:40:43,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:40:43,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:40:43,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:40:43,062 INFO L87 Difference]: Start difference. First operand 42757 states and 49508 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-22 02:40:46,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:40:46,068 INFO L93 Difference]: Finished difference Result 93830 states and 108766 transitions. [2023-12-22 02:40:46,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:40:46,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 236 [2023-12-22 02:40:46,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:40:46,194 INFO L225 Difference]: With dead ends: 93830 [2023-12-22 02:40:46,194 INFO L226 Difference]: Without dead ends: 51085 [2023-12-22 02:40:46,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 234 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 02:40:46,240 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 83 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:40:46,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 381 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:40:46,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51085 states.