/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.11.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 02:41:39,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 02:41:39,316 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 02:41:39,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 02:41:39,323 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 02:41:39,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 02:41:39,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 02:41:39,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 02:41:39,345 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 02:41:39,346 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 02:41:39,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 02:41:39,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 02:41:39,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 02:41:39,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 02:41:39,347 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 02:41:39,347 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 02:41:39,347 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 02:41:39,348 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 02:41:39,348 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 02:41:39,348 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 02:41:39,348 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 02:41:39,349 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 02:41:39,349 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 02:41:39,349 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 02:41:39,349 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 02:41:39,350 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 02:41:39,350 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 02:41:39,350 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 02:41:39,350 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 02:41:39,350 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 02:41:39,351 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 02:41:39,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 02:41:39,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 02:41:39,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 02:41:39,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:41:39,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 02:41:39,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 02:41:39,352 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 02:41:39,352 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 02:41:39,352 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 02:41:39,352 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 02:41:39,352 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 02:41:39,353 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 02:41:39,353 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 02:41:39,353 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 02:41:39,353 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 02:41:39,353 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 02:41:39,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 02:41:39,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 02:41:39,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 02:41:39,550 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 02:41:39,551 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 02:41:39,553 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.11.cil-1.c [2023-12-22 02:41:40,746 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 02:41:40,995 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 02:41:40,996 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.11.cil-1.c [2023-12-22 02:41:41,035 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75d04ee04/6f7db1a04dfa44e6a0422836a542b317/FLAG0be285740 [2023-12-22 02:41:41,051 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75d04ee04/6f7db1a04dfa44e6a0422836a542b317 [2023-12-22 02:41:41,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 02:41:41,055 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 02:41:41,056 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 02:41:41,056 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 02:41:41,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 02:41:41,063 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:41:41" (1/1) ... [2023-12-22 02:41:41,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2371d1b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:41, skipping insertion in model container [2023-12-22 02:41:41,064 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:41:41" (1/1) ... [2023-12-22 02:41:41,124 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 02:41:41,268 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.11.cil-1.c[911,924] [2023-12-22 02:41:41,325 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.11.cil-1.c[8416,8429] [2023-12-22 02:41:41,399 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:41:41,419 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 02:41:41,430 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.11.cil-1.c[911,924] [2023-12-22 02:41:41,443 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.11.cil-1.c[8416,8429] [2023-12-22 02:41:41,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:41:41,510 INFO L206 MainTranslator]: Completed translation [2023-12-22 02:41:41,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:41 WrapperNode [2023-12-22 02:41:41,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 02:41:41,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 02:41:41,512 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 02:41:41,512 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 02:41:41,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:41" (1/1) ... [2023-12-22 02:41:41,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:41" (1/1) ... [2023-12-22 02:41:41,560 INFO L138 Inliner]: procedures = 78, calls = 95, calls flagged for inlining = 45, calls inlined = 45, statements flattened = 1013 [2023-12-22 02:41:41,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 02:41:41,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 02:41:41,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 02:41:41,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 02:41:41,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:41" (1/1) ... [2023-12-22 02:41:41,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:41" (1/1) ... [2023-12-22 02:41:41,574 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:41" (1/1) ... [2023-12-22 02:41:41,586 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 02:41:41,586 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:41" (1/1) ... [2023-12-22 02:41:41,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:41" (1/1) ... [2023-12-22 02:41:41,608 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:41" (1/1) ... [2023-12-22 02:41:41,616 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:41" (1/1) ... [2023-12-22 02:41:41,618 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:41" (1/1) ... [2023-12-22 02:41:41,621 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:41" (1/1) ... [2023-12-22 02:41:41,625 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 02:41:41,626 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 02:41:41,626 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 02:41:41,626 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 02:41:41,627 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:41" (1/1) ... [2023-12-22 02:41:41,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:41:41,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 02:41:41,686 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 02:41:41,734 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 02:41:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 02:41:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-22 02:41:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-22 02:41:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-22 02:41:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-22 02:41:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-22 02:41:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-22 02:41:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-22 02:41:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-22 02:41:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-22 02:41:41,742 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-22 02:41:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-22 02:41:41,742 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-22 02:41:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-22 02:41:41,742 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-22 02:41:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-22 02:41:41,742 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-22 02:41:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 02:41:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-22 02:41:41,742 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-22 02:41:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-22 02:41:41,742 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-22 02:41:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-22 02:41:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-22 02:41:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-22 02:41:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-22 02:41:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-22 02:41:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-22 02:41:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 02:41:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 02:41:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-22 02:41:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-22 02:41:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2023-12-22 02:41:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2023-12-22 02:41:41,844 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 02:41:41,846 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 02:41:42,598 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1bv32 == ~q_free~0); [2023-12-22 02:41:42,599 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 02:41:42,662 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 02:41:42,734 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 02:41:42,734 INFO L309 CfgBuilder]: Removed 18 assume(true) statements. [2023-12-22 02:41:42,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:41:42 BoogieIcfgContainer [2023-12-22 02:41:42,735 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 02:41:42,737 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 02:41:42,737 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 02:41:42,739 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 02:41:42,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:41:41" (1/3) ... [2023-12-22 02:41:42,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4245ba7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:41:42, skipping insertion in model container [2023-12-22 02:41:42,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:41:41" (2/3) ... [2023-12-22 02:41:42,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4245ba7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:41:42, skipping insertion in model container [2023-12-22 02:41:42,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:41:42" (3/3) ... [2023-12-22 02:41:42,742 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.11.cil-1.c [2023-12-22 02:41:42,755 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 02:41:42,755 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 02:41:42,794 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 02:41:42,798 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;@5deeb32d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 02:41:42,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 02:41:42,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 437 states, 376 states have (on average 1.7154255319148937) internal successors, (645), 384 states have internal predecessors, (645), 43 states have call successors, (43), 15 states have call predecessors, (43), 15 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-22 02:41:42,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-22 02:41:42,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:41:42,819 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 02:41:42,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:41:42,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:41:42,824 INFO L85 PathProgramCache]: Analyzing trace with hash 677889946, now seen corresponding path program 1 times [2023-12-22 02:41:42,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:41:42,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374962951] [2023-12-22 02:41:42,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:41:42,839 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 02:41:42,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:41:42,844 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 02:41:42,906 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 02:41:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:41:43,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 02:41:43,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:41:43,208 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 02:41:43,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:41:43,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:41:43,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374962951] [2023-12-22 02:41:43,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [374962951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:41:43,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:41:43,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:41:43,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999754274] [2023-12-22 02:41:43,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:41:43,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:41:43,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:41:43,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:41:43,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:41:43,249 INFO L87 Difference]: Start difference. First operand has 437 states, 376 states have (on average 1.7154255319148937) internal successors, (645), 384 states have internal predecessors, (645), 43 states have call successors, (43), 15 states have call predecessors, (43), 15 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 5 states, 5 states have (on average 8.4) 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 02:41:44,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:41:44,127 INFO L93 Difference]: Finished difference Result 957 states and 1595 transitions. [2023-12-22 02:41:44,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:41:44,129 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 02:41:44,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:41:44,146 INFO L225 Difference]: With dead ends: 957 [2023-12-22 02:41:44,146 INFO L226 Difference]: Without dead ends: 539 [2023-12-22 02:41:44,168 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 02:41:44,171 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 468 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 02:41:44,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1296 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 02:41:44,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2023-12-22 02:41:44,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 532. [2023-12-22 02:41:44,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 452 states have (on average 1.5884955752212389) internal successors, (718), 459 states have internal predecessors, (718), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (57), 53 states have call predecessors, (57), 52 states have call successors, (57) [2023-12-22 02:41:44,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 831 transitions. [2023-12-22 02:41:44,243 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 831 transitions. Word has length 57 [2023-12-22 02:41:44,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:41:44,243 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 831 transitions. [2023-12-22 02:41:44,244 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 02:41:44,244 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 831 transitions. [2023-12-22 02:41:44,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-22 02:41:44,246 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:41:44,246 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 02:41:44,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-22 02:41:44,450 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 02:41:44,451 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:41:44,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:41:44,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1266102822, now seen corresponding path program 1 times [2023-12-22 02:41:44,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:41:44,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871220727] [2023-12-22 02:41:44,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:41:44,452 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 02:41:44,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:41:44,453 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 02:41:44,455 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 02:41:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:41:44,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:41:44,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:41:44,580 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 02:41:44,581 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:41:44,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:41:44,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871220727] [2023-12-22 02:41:44,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871220727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:41:44,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:41:44,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:41:44,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575070372] [2023-12-22 02:41:44,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:41:44,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:41:44,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:41:44,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:41:44,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:41:44,584 INFO L87 Difference]: Start difference. First operand 532 states and 831 transitions. 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 02:41:45,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:41:45,456 INFO L93 Difference]: Finished difference Result 943 states and 1446 transitions. [2023-12-22 02:41:45,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:41:45,457 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 02:41:45,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:41:45,460 INFO L225 Difference]: With dead ends: 943 [2023-12-22 02:41:45,460 INFO L226 Difference]: Without dead ends: 753 [2023-12-22 02:41:45,461 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 02:41:45,462 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 457 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 02:41:45,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 1292 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 02:41:45,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2023-12-22 02:41:45,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 745. [2023-12-22 02:41:45,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 617 states have (on average 1.546191247974068) internal successors, (954), 632 states have internal predecessors, (954), 82 states have call successors, (82), 36 states have call predecessors, (82), 44 states have return successors, (103), 81 states have call predecessors, (103), 78 states have call successors, (103) [2023-12-22 02:41:45,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1139 transitions. [2023-12-22 02:41:45,504 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1139 transitions. Word has length 57 [2023-12-22 02:41:45,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:41:45,504 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 1139 transitions. [2023-12-22 02:41:45,504 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 02:41:45,504 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1139 transitions. [2023-12-22 02:41:45,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-22 02:41:45,507 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:41:45,507 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 02:41:45,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 02:41:45,711 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 02:41:45,712 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:41:45,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:41:45,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1190264934, now seen corresponding path program 1 times [2023-12-22 02:41:45,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:41:45,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1706129552] [2023-12-22 02:41:45,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:41:45,714 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:41:45,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:41:45,719 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 02:41:45,755 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 02:41:45,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:41:45,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:41:45,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:41:45,851 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 02:41:45,851 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:41:45,851 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:41:45,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1706129552] [2023-12-22 02:41:45,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1706129552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:41:45,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:41:45,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:41:45,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770221408] [2023-12-22 02:41:45,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:41:45,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:41:45,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:41:45,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:41:45,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:41:45,853 INFO L87 Difference]: Start difference. First operand 745 states and 1139 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 02:41:45,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:41:45,966 INFO L93 Difference]: Finished difference Result 1491 states and 2206 transitions. [2023-12-22 02:41:45,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:41:45,966 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 02:41:45,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:41:45,974 INFO L225 Difference]: With dead ends: 1491 [2023-12-22 02:41:45,974 INFO L226 Difference]: Without dead ends: 1102 [2023-12-22 02:41:45,976 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 02:41:45,978 INFO L413 NwaCegarLoop]: 658 mSDtfsCounter, 649 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:41:45,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 769 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:41:45,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2023-12-22 02:41:46,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1094. [2023-12-22 02:41:46,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 888 states have (on average 1.5022522522522523) internal successors, (1334), 913 states have internal predecessors, (1334), 122 states have call successors, (122), 64 states have call predecessors, (122), 82 states have return successors, (160), 121 states have call predecessors, (160), 118 states have call successors, (160) [2023-12-22 02:41:46,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1616 transitions. [2023-12-22 02:41:46,043 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1616 transitions. Word has length 57 [2023-12-22 02:41:46,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:41:46,044 INFO L495 AbstractCegarLoop]: Abstraction has 1094 states and 1616 transitions. [2023-12-22 02:41:46,044 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 02:41:46,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1616 transitions. [2023-12-22 02:41:46,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:41:46,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:41:46,047 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 02:41:46,057 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 02:41:46,251 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 02:41:46,252 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:41:46,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:41:46,254 INFO L85 PathProgramCache]: Analyzing trace with hash 54739281, now seen corresponding path program 1 times [2023-12-22 02:41:46,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:41:46,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1238576734] [2023-12-22 02:41:46,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:41:46,254 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 02:41:46,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:41:46,261 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 02:41:46,263 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 02:41:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:41:46,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:41:46,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:41:46,377 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 02:41:46,377 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:41:46,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:41:46,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1238576734] [2023-12-22 02:41:46,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1238576734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:41:46,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:41:46,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:41:46,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486354130] [2023-12-22 02:41:46,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:41:46,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:41:46,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:41:46,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:41:46,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:41:46,379 INFO L87 Difference]: Start difference. First operand 1094 states and 1616 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 02:41:46,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:41:46,581 INFO L93 Difference]: Finished difference Result 1868 states and 2720 transitions. [2023-12-22 02:41:46,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:41:46,582 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 02:41:46,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:41:46,586 INFO L225 Difference]: With dead ends: 1868 [2023-12-22 02:41:46,587 INFO L226 Difference]: Without dead ends: 1130 [2023-12-22 02:41:46,588 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 02:41:46,589 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 6 mSDsluCounter, 2522 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:41:46,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3154 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:41:46,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2023-12-22 02:41:46,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1110. [2023-12-22 02:41:46,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 900 states have (on average 1.491111111111111) internal successors, (1342), 925 states have internal predecessors, (1342), 122 states have call successors, (122), 64 states have call predecessors, (122), 86 states have return successors, (164), 125 states have call predecessors, (164), 118 states have call successors, (164) [2023-12-22 02:41:46,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1628 transitions. [2023-12-22 02:41:46,683 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1628 transitions. Word has length 58 [2023-12-22 02:41:46,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:41:46,685 INFO L495 AbstractCegarLoop]: Abstraction has 1110 states and 1628 transitions. [2023-12-22 02:41:46,685 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 02:41:46,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1628 transitions. [2023-12-22 02:41:46,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:41:46,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:41:46,687 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 02:41:46,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 02:41:46,892 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 02:41:46,892 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:41:46,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:41:46,893 INFO L85 PathProgramCache]: Analyzing trace with hash -17647277, now seen corresponding path program 1 times [2023-12-22 02:41:46,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:41:46,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208217307] [2023-12-22 02:41:46,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:41:46,894 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 02:41:46,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:41:46,900 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 02:41:46,901 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 02:41:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:41:47,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:41:47,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:41:47,054 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 02:41:47,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:41:47,056 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:41:47,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208217307] [2023-12-22 02:41:47,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208217307] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:41:47,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:41:47,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:41:47,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609606618] [2023-12-22 02:41:47,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:41:47,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:41:47,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:41:47,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:41:47,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:41:47,058 INFO L87 Difference]: Start difference. First operand 1110 states and 1628 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 02:41:47,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:41:47,220 INFO L93 Difference]: Finished difference Result 2562 states and 3644 transitions. [2023-12-22 02:41:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:41:47,220 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 02:41:47,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:41:47,229 INFO L225 Difference]: With dead ends: 2562 [2023-12-22 02:41:47,229 INFO L226 Difference]: Without dead ends: 1808 [2023-12-22 02:41:47,233 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 02:41:47,234 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 638 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:41:47,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 745 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:41:47,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2023-12-22 02:41:47,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 1800. [2023-12-22 02:41:47,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1430 states have (on average 1.4377622377622377) internal successors, (2056), 1475 states have internal predecessors, (2056), 202 states have call successors, (202), 120 states have call predecessors, (202), 166 states have return successors, (282), 209 states have call predecessors, (282), 198 states have call successors, (282) [2023-12-22 02:41:47,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2540 transitions. [2023-12-22 02:41:47,339 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2540 transitions. Word has length 58 [2023-12-22 02:41:47,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:41:47,340 INFO L495 AbstractCegarLoop]: Abstraction has 1800 states and 2540 transitions. [2023-12-22 02:41:47,340 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 02:41:47,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2540 transitions. [2023-12-22 02:41:47,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-22 02:41:47,343 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:41:47,343 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 02:41:47,347 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 02:41:47,547 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 02:41:47,548 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:41:47,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:41:47,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1782094483, now seen corresponding path program 1 times [2023-12-22 02:41:47,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:41:47,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953492815] [2023-12-22 02:41:47,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:41:47,549 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 02:41:47,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:41:47,550 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 02:41:47,552 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 02:41:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:41:47,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:41:47,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:41:47,693 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 02:41:47,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:41:47,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:41:47,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953492815] [2023-12-22 02:41:47,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953492815] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:41:47,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:41:47,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:41:47,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500544022] [2023-12-22 02:41:47,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:41:47,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:41:47,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:41:47,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:41:47,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:41:47,695 INFO L87 Difference]: Start difference. First operand 1800 states and 2540 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 02:41:47,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:41:47,967 INFO L93 Difference]: Finished difference Result 3292 states and 4596 transitions. [2023-12-22 02:41:47,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:41:47,967 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 02:41:47,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:41:47,975 INFO L225 Difference]: With dead ends: 3292 [2023-12-22 02:41:47,976 INFO L226 Difference]: Without dead ends: 1848 [2023-12-22 02:41:47,979 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 02:41:47,980 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 3 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:41:47,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3149 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:41:47,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states. [2023-12-22 02:41:48,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1832. [2023-12-22 02:41:48,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1832 states, 1454 states have (on average 1.4250343878954608) internal successors, (2072), 1499 states have internal predecessors, (2072), 202 states have call successors, (202), 120 states have call predecessors, (202), 174 states have return successors, (290), 217 states have call predecessors, (290), 198 states have call successors, (290) [2023-12-22 02:41:48,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1832 states to 1832 states and 2564 transitions. [2023-12-22 02:41:48,081 INFO L78 Accepts]: Start accepts. Automaton has 1832 states and 2564 transitions. Word has length 73 [2023-12-22 02:41:48,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:41:48,082 INFO L495 AbstractCegarLoop]: Abstraction has 1832 states and 2564 transitions. [2023-12-22 02:41:48,082 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 02:41:48,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1832 states and 2564 transitions. [2023-12-22 02:41:48,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-22 02:41:48,084 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:41:48,084 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 02:41:48,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 02:41:48,288 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 02:41:48,289 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:41:48,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:41:48,289 INFO L85 PathProgramCache]: Analyzing trace with hash 667505647, now seen corresponding path program 1 times [2023-12-22 02:41:48,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:41:48,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808991027] [2023-12-22 02:41:48,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:41:48,290 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 02:41:48,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:41:48,291 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 02:41:48,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 02:41:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:41:48,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:41:48,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:41:48,452 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 02:41:48,452 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:41:48,452 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:41:48,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808991027] [2023-12-22 02:41:48,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808991027] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:41:48,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:41:48,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:41:48,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47462938] [2023-12-22 02:41:48,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:41:48,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:41:48,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:41:48,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:41:48,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:41:48,455 INFO L87 Difference]: Start difference. First operand 1832 states and 2564 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 02:41:49,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:41:49,122 INFO L93 Difference]: Finished difference Result 4748 states and 6547 transitions. [2023-12-22 02:41:49,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:41:49,122 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 02:41:49,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:41:49,141 INFO L225 Difference]: With dead ends: 4748 [2023-12-22 02:41:49,141 INFO L226 Difference]: Without dead ends: 3276 [2023-12-22 02:41:49,148 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 02:41:49,149 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 935 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:41:49,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 673 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:41:49,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3276 states. [2023-12-22 02:41:49,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3276 to 3272. [2023-12-22 02:41:49,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3272 states, 2538 states have (on average 1.3743104806934594) internal successors, (3488), 2631 states have internal predecessors, (3488), 382 states have call successors, (382), 232 states have call predecessors, (382), 350 states have return successors, (627), 417 states have call predecessors, (627), 378 states have call successors, (627) [2023-12-22 02:41:49,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3272 states to 3272 states and 4497 transitions. [2023-12-22 02:41:49,329 INFO L78 Accepts]: Start accepts. Automaton has 3272 states and 4497 transitions. Word has length 73 [2023-12-22 02:41:49,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:41:49,330 INFO L495 AbstractCegarLoop]: Abstraction has 3272 states and 4497 transitions. [2023-12-22 02:41:49,330 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 02:41:49,330 INFO L276 IsEmpty]: Start isEmpty. Operand 3272 states and 4497 transitions. [2023-12-22 02:41:49,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-22 02:41:49,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:41:49,335 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 02:41:49,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-22 02:41:49,539 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 02:41:49,539 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:41:49,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:41:49,540 INFO L85 PathProgramCache]: Analyzing trace with hash 391880045, now seen corresponding path program 1 times [2023-12-22 02:41:49,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:41:49,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043682351] [2023-12-22 02:41:49,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:41:49,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:41:49,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:41:49,542 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 02:41:49,544 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 02:41:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:41:49,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:41:49,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:41:49,647 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 02:41:49,647 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:41:49,648 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:41:49,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043682351] [2023-12-22 02:41:49,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043682351] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:41:49,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:41:49,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:41:49,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625899421] [2023-12-22 02:41:49,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:41:49,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:41:49,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:41:49,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:41:49,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:41:49,649 INFO L87 Difference]: Start difference. First operand 3272 states and 4497 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 02:41:49,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:41:49,913 INFO L93 Difference]: Finished difference Result 8940 states and 12126 transitions. [2023-12-22 02:41:49,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:41:49,913 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 02:41:49,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:41:49,937 INFO L225 Difference]: With dead ends: 8940 [2023-12-22 02:41:49,937 INFO L226 Difference]: Without dead ends: 4696 [2023-12-22 02:41:49,945 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 02:41:49,946 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 110 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:41:49,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1361 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:41:49,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4696 states. [2023-12-22 02:41:50,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4696 to 4696. [2023-12-22 02:41:50,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4696 states, 3618 states have (on average 1.3543394140409066) internal successors, (4900), 3751 states have internal predecessors, (4900), 546 states have call successors, (546), 344 states have call predecessors, (546), 530 states have return successors, (959), 609 states have call predecessors, (959), 542 states have call successors, (959) [2023-12-22 02:41:50,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4696 states to 4696 states and 6405 transitions. [2023-12-22 02:41:50,193 INFO L78 Accepts]: Start accepts. Automaton has 4696 states and 6405 transitions. Word has length 75 [2023-12-22 02:41:50,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:41:50,193 INFO L495 AbstractCegarLoop]: Abstraction has 4696 states and 6405 transitions. [2023-12-22 02:41:50,193 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 02:41:50,193 INFO L276 IsEmpty]: Start isEmpty. Operand 4696 states and 6405 transitions. [2023-12-22 02:41:50,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-22 02:41:50,206 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:41:50,206 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 02:41:50,225 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 02:41:50,409 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 02:41:50,410 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:41:50,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:41:50,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1395485152, now seen corresponding path program 1 times [2023-12-22 02:41:50,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:41:50,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703012264] [2023-12-22 02:41:50,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:41:50,411 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 02:41:50,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:41:50,420 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 02:41:50,421 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 02:41:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:41:50,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:41:50,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:41:50,545 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 02:41:50,545 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:41:50,545 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:41:50,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703012264] [2023-12-22 02:41:50,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [703012264] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:41:50,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:41:50,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:41:50,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130114564] [2023-12-22 02:41:50,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:41:50,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:41:50,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:41:50,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:41:50,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:41:50,547 INFO L87 Difference]: Start difference. First operand 4696 states and 6405 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 02:41:50,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:41:50,814 INFO L93 Difference]: Finished difference Result 9052 states and 12359 transitions. [2023-12-22 02:41:50,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:41:50,814 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 02:41:50,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:41:50,832 INFO L225 Difference]: With dead ends: 9052 [2023-12-22 02:41:50,832 INFO L226 Difference]: Without dead ends: 4736 [2023-12-22 02:41:50,841 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 02:41:50,842 INFO L413 NwaCegarLoop]: 633 mSDtfsCounter, 32 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:41:50,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 3156 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:41:50,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4736 states. [2023-12-22 02:41:51,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4736 to 4250. [2023-12-22 02:41:51,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4250 states, 3340 states have (on average 1.3437125748502994) internal successors, (4488), 3412 states have internal predecessors, (4488), 450 states have call successors, (450), 293 states have call predecessors, (450), 458 states have return successors, (816), 553 states have call predecessors, (816), 446 states have call successors, (816) [2023-12-22 02:41:51,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4250 states to 4250 states and 5754 transitions. [2023-12-22 02:41:51,104 INFO L78 Accepts]: Start accepts. Automaton has 4250 states and 5754 transitions. Word has length 138 [2023-12-22 02:41:51,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:41:51,104 INFO L495 AbstractCegarLoop]: Abstraction has 4250 states and 5754 transitions. [2023-12-22 02:41:51,105 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 02:41:51,105 INFO L276 IsEmpty]: Start isEmpty. Operand 4250 states and 5754 transitions. [2023-12-22 02:41:51,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-22 02:41:51,116 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:41:51,117 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 02:41:51,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-22 02:41:51,321 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 02:41:51,321 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:41:51,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:41:51,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1960189880, now seen corresponding path program 1 times [2023-12-22 02:41:51,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:41:51,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425451325] [2023-12-22 02:41:51,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:41:51,327 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 02:41:51,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:41:51,338 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 02:41:51,339 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 02:41:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:41:51,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:41:51,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:41:51,450 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 02:41:51,450 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:41:51,450 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:41:51,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425451325] [2023-12-22 02:41:51,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425451325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:41:51,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:41:51,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:41:51,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395781399] [2023-12-22 02:41:51,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:41:51,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:41:51,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:41:51,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:41:51,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:41:51,452 INFO L87 Difference]: Start difference. First operand 4250 states and 5754 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 02:41:51,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:41:51,599 INFO L93 Difference]: Finished difference Result 6557 states and 8817 transitions. [2023-12-22 02:41:51,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:41:51,600 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 02:41:51,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:41:51,610 INFO L225 Difference]: With dead ends: 6557 [2023-12-22 02:41:51,610 INFO L226 Difference]: Without dead ends: 2727 [2023-12-22 02:41:51,619 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 02:41:51,619 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 138 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:41:51,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1127 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:41:51,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2727 states. [2023-12-22 02:41:51,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2727 to 2727. [2023-12-22 02:41:51,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2727 states, 2159 states have (on average 1.3608151922186198) internal successors, (2938), 2205 states have internal predecessors, (2938), 274 states have call successors, (274), 181 states have call predecessors, (274), 292 states have return successors, (496), 341 states have call predecessors, (496), 270 states have call successors, (496) [2023-12-22 02:41:51,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2727 states to 2727 states and 3708 transitions. [2023-12-22 02:41:51,757 INFO L78 Accepts]: Start accepts. Automaton has 2727 states and 3708 transitions. Word has length 139 [2023-12-22 02:41:51,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:41:51,757 INFO L495 AbstractCegarLoop]: Abstraction has 2727 states and 3708 transitions. [2023-12-22 02:41:51,757 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 02:41:51,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2727 states and 3708 transitions. [2023-12-22 02:41:51,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-22 02:41:51,764 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:41:51,764 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 02:41:51,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-22 02:41:51,970 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 02:41:51,970 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:41:51,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:41:51,971 INFO L85 PathProgramCache]: Analyzing trace with hash 719963144, now seen corresponding path program 1 times [2023-12-22 02:41:51,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:41:51,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518977473] [2023-12-22 02:41:51,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:41:51,972 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:41:51,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:41:51,973 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 02:41:52,009 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 02:41:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:41:52,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:41:52,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:41:52,171 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 02:41:52,171 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:41:52,171 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:41:52,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518977473] [2023-12-22 02:41:52,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [518977473] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:41:52,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:41:52,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:41:52,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631348809] [2023-12-22 02:41:52,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:41:52,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:41:52,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:41:52,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:41:52,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:41:52,173 INFO L87 Difference]: Start difference. First operand 2727 states and 3708 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 02:41:52,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:41:52,377 INFO L93 Difference]: Finished difference Result 6427 states and 8769 transitions. [2023-12-22 02:41:52,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:41:52,378 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 02:41:52,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:41:52,401 INFO L225 Difference]: With dead ends: 6427 [2023-12-22 02:41:52,401 INFO L226 Difference]: Without dead ends: 4320 [2023-12-22 02:41:52,406 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 02:41:52,406 INFO L413 NwaCegarLoop]: 644 mSDtfsCounter, 64 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:41:52,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1257 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:41:52,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4320 states. [2023-12-22 02:41:52,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4320 to 4292. [2023-12-22 02:41:52,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4292 states, 3386 states have (on average 1.351447135262847) internal successors, (4576), 3468 states have internal predecessors, (4576), 430 states have call successors, (430), 289 states have call predecessors, (430), 474 states have return successors, (805), 535 states have call predecessors, (805), 426 states have call successors, (805) [2023-12-22 02:41:52,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 5811 transitions. [2023-12-22 02:41:52,594 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 5811 transitions. Word has length 141 [2023-12-22 02:41:52,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:41:52,595 INFO L495 AbstractCegarLoop]: Abstraction has 4292 states and 5811 transitions. [2023-12-22 02:41:52,596 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 02:41:52,596 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 5811 transitions. [2023-12-22 02:41:52,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-22 02:41:52,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:41:52,602 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:41:52,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-22 02:41:52,806 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 02:41:52,807 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:41:52,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:41:52,808 INFO L85 PathProgramCache]: Analyzing trace with hash 366599285, now seen corresponding path program 1 times [2023-12-22 02:41:52,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:41:52,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1067267619] [2023-12-22 02:41:52,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:41:52,808 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 02:41:52,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:41:52,809 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 02:41:52,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-22 02:41:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:41:52,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:41:52,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:41:52,945 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-22 02:41:52,945 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:41:52,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:41:52,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1067267619] [2023-12-22 02:41:52,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1067267619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:41:52,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:41:52,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:41:52,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381151646] [2023-12-22 02:41:52,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:41:52,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:41:52,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:41:52,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:41:52,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:41:52,947 INFO L87 Difference]: Start difference. First operand 4292 states and 5811 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 02:41:53,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:41:53,298 INFO L93 Difference]: Finished difference Result 11208 states and 15552 transitions. [2023-12-22 02:41:53,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:41:53,298 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 02:41:53,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:41:53,329 INFO L225 Difference]: With dead ends: 11208 [2023-12-22 02:41:53,329 INFO L226 Difference]: Without dead ends: 7536 [2023-12-22 02:41:53,338 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 02:41:53,339 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 94 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:41:53,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1295 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:41:53,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7536 states. [2023-12-22 02:41:53,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7536 to 7484. [2023-12-22 02:41:53,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7484 states, 5878 states have (on average 1.3225586934331406) internal successors, (7774), 6010 states have internal predecessors, (7774), 766 states have call successors, (766), 523 states have call predecessors, (766), 838 states have return successors, (1603), 951 states have call predecessors, (1603), 762 states have call successors, (1603) [2023-12-22 02:41:53,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7484 states to 7484 states and 10143 transitions. [2023-12-22 02:41:53,710 INFO L78 Accepts]: Start accepts. Automaton has 7484 states and 10143 transitions. Word has length 142 [2023-12-22 02:41:53,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:41:53,710 INFO L495 AbstractCegarLoop]: Abstraction has 7484 states and 10143 transitions. [2023-12-22 02:41:53,710 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 02:41:53,711 INFO L276 IsEmpty]: Start isEmpty. Operand 7484 states and 10143 transitions. [2023-12-22 02:41:53,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-22 02:41:53,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:41:53,723 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 02:41:53,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-22 02:41:53,928 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 02:41:53,928 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:41:53,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:41:53,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1318307374, now seen corresponding path program 1 times [2023-12-22 02:41:53,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:41:53,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357653381] [2023-12-22 02:41:53,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:41:53,929 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 02:41:53,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:41:53,931 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 02:41:53,939 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 02:41:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:41:54,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:41:54,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:41:54,148 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 02:41:54,148 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:41:54,148 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:41:54,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357653381] [2023-12-22 02:41:54,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [357653381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:41:54,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:41:54,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:41:54,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591780609] [2023-12-22 02:41:54,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:41:54,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:41:54,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:41:54,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:41:54,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:41:54,150 INFO L87 Difference]: Start difference. First operand 7484 states and 10143 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 02:41:54,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:41:54,676 INFO L93 Difference]: Finished difference Result 21096 states and 28800 transitions. [2023-12-22 02:41:54,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:41:54,677 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 02:41:54,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:41:54,718 INFO L225 Difference]: With dead ends: 21096 [2023-12-22 02:41:54,718 INFO L226 Difference]: Without dead ends: 14232 [2023-12-22 02:41:54,732 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 02:41:54,733 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 68 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:41:54,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1262 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:41:54,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14232 states. [2023-12-22 02:41:55,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14232 to 14228. [2023-12-22 02:41:55,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14228 states, 11145 states have (on average 1.3044414535666218) internal successors, (14538), 11406 states have internal predecessors, (14538), 1474 states have call successors, (1474), 1009 states have call predecessors, (1474), 1607 states have return successors, (3077), 1813 states have call predecessors, (3077), 1470 states have call successors, (3077) [2023-12-22 02:41:55,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14228 states to 14228 states and 19089 transitions. [2023-12-22 02:41:55,418 INFO L78 Accepts]: Start accepts. Automaton has 14228 states and 19089 transitions. Word has length 143 [2023-12-22 02:41:55,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:41:55,419 INFO L495 AbstractCegarLoop]: Abstraction has 14228 states and 19089 transitions. [2023-12-22 02:41:55,419 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 02:41:55,419 INFO L276 IsEmpty]: Start isEmpty. Operand 14228 states and 19089 transitions. [2023-12-22 02:41:55,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-22 02:41:55,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:41:55,434 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, 1, 1, 1, 1, 1, 1] [2023-12-22 02:41:55,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-22 02:41:55,638 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 02:41:55,639 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:41:55,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:41:55,639 INFO L85 PathProgramCache]: Analyzing trace with hash 751566344, now seen corresponding path program 1 times [2023-12-22 02:41:55,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:41:55,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125706846] [2023-12-22 02:41:55,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:41:55,640 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 02:41:55,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:41:55,659 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 02:41:55,684 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 02:41:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:41:55,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:41:55,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:41:55,812 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 02:41:55,813 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:41:55,813 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:41:55,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125706846] [2023-12-22 02:41:55,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125706846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:41:55,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:41:55,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:41:55,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982909117] [2023-12-22 02:41:55,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:41:55,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:41:55,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:41:55,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:41:55,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:41:55,814 INFO L87 Difference]: Start difference. First operand 14228 states and 19089 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 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 02:41:57,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:41:57,584 INFO L93 Difference]: Finished difference Result 40875 states and 54837 transitions. [2023-12-22 02:41:57,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:41:57,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 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 02:41:57,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:41:57,677 INFO L225 Difference]: With dead ends: 40875 [2023-12-22 02:41:57,677 INFO L226 Difference]: Without dead ends: 26980 [2023-12-22 02:41:57,706 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 02:41:57,707 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 966 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 02:41:57,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 937 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 02:41:57,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26980 states. [2023-12-22 02:41:59,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26980 to 26932. [2023-12-22 02:41:59,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26932 states, 20943 states have (on average 1.2902163013894858) internal successors, (27021), 21427 states have internal predecessors, (27021), 2869 states have call successors, (2869), 1960 states have call predecessors, (2869), 3118 states have return successors, (5871), 3545 states have call predecessors, (5871), 2865 states have call successors, (5871) [2023-12-22 02:41:59,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26932 states to 26932 states and 35761 transitions. [2023-12-22 02:41:59,363 INFO L78 Accepts]: Start accepts. Automaton has 26932 states and 35761 transitions. Word has length 147 [2023-12-22 02:41:59,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:41:59,364 INFO L495 AbstractCegarLoop]: Abstraction has 26932 states and 35761 transitions. [2023-12-22 02:41:59,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 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 02:41:59,364 INFO L276 IsEmpty]: Start isEmpty. Operand 26932 states and 35761 transitions. [2023-12-22 02:41:59,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-22 02:41:59,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:41:59,387 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:41:59,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-22 02:41:59,591 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 02:41:59,592 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:41:59,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:41:59,592 INFO L85 PathProgramCache]: Analyzing trace with hash 953494946, now seen corresponding path program 1 times [2023-12-22 02:41:59,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:41:59,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84784921] [2023-12-22 02:41:59,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:41:59,593 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 02:41:59,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:41:59,594 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 02:41:59,628 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 02:41:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:41:59,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:41:59,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:41:59,729 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 02:41:59,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:41:59,729 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:41:59,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84784921] [2023-12-22 02:41:59,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84784921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:41:59,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:41:59,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:41:59,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748523951] [2023-12-22 02:41:59,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:41:59,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:41:59,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:41:59,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:41:59,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:41:59,731 INFO L87 Difference]: Start difference. First operand 26932 states and 35761 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 02:42:00,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:42:00,838 INFO L93 Difference]: Finished difference Result 53372 states and 70769 transitions. [2023-12-22 02:42:00,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:42:00,839 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 02:42:00,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:42:00,919 INFO L225 Difference]: With dead ends: 53372 [2023-12-22 02:42:00,919 INFO L226 Difference]: Without dead ends: 26840 [2023-12-22 02:42:00,956 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 02:42:00,957 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 103 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:42:00,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1295 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:42:00,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26840 states. [2023-12-22 02:42:02,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26840 to 26836. [2023-12-22 02:42:02,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26836 states, 20847 states have (on average 1.2708303353000432) internal successors, (26493), 21379 states have internal predecessors, (26493), 2869 states have call successors, (2869), 1960 states have call predecessors, (2869), 3118 states have return successors, (5295), 3497 states have call predecessors, (5295), 2865 states have call successors, (5295) [2023-12-22 02:42:02,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26836 states to 26836 states and 34657 transitions. [2023-12-22 02:42:02,507 INFO L78 Accepts]: Start accepts. Automaton has 26836 states and 34657 transitions. Word has length 164 [2023-12-22 02:42:02,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:42:02,508 INFO L495 AbstractCegarLoop]: Abstraction has 26836 states and 34657 transitions. [2023-12-22 02:42:02,508 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 02:42:02,508 INFO L276 IsEmpty]: Start isEmpty. Operand 26836 states and 34657 transitions. [2023-12-22 02:42:02,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:42:02,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:42:02,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:42:02,525 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 (16)] Ended with exit code 0 [2023-12-22 02:42:02,715 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 02:42:02,716 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:42:02,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:42:02,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1910721648, now seen corresponding path program 1 times [2023-12-22 02:42:02,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:42:02,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489431125] [2023-12-22 02:42:02,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:42:02,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:42:02,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:42:02,734 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 02:42:02,767 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 02:42:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:42:02,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:42:02,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:42:02,883 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 02:42:02,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:42:02,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:42:02,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489431125] [2023-12-22 02:42:02,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489431125] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:42:02,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:42:02,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:42:02,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984878007] [2023-12-22 02:42:02,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:42:02,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:42:02,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:42:02,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:42:02,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:42:02,885 INFO L87 Difference]: Start difference. First operand 26836 states and 34657 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:03,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:42:03,974 INFO L93 Difference]: Finished difference Result 27156 states and 35176 transitions. [2023-12-22 02:42:03,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:42:03,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:42:03,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:42:04,039 INFO L225 Difference]: With dead ends: 27156 [2023-12-22 02:42:04,040 INFO L226 Difference]: Without dead ends: 26836 [2023-12-22 02:42:04,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:42:04,052 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 525 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:42:04,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 763 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:42:04,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26836 states. [2023-12-22 02:42:05,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26836 to 26836. [2023-12-22 02:42:05,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26836 states, 20847 states have (on average 1.2707823667674005) internal successors, (26492), 21379 states have internal predecessors, (26492), 2869 states have call successors, (2869), 1960 states have call predecessors, (2869), 3118 states have return successors, (5295), 3497 states have call predecessors, (5295), 2865 states have call successors, (5295) [2023-12-22 02:42:05,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26836 states to 26836 states and 34656 transitions. [2023-12-22 02:42:05,377 INFO L78 Accepts]: Start accepts. Automaton has 26836 states and 34656 transitions. Word has length 152 [2023-12-22 02:42:05,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:42:05,377 INFO L495 AbstractCegarLoop]: Abstraction has 26836 states and 34656 transitions. [2023-12-22 02:42:05,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:05,378 INFO L276 IsEmpty]: Start isEmpty. Operand 26836 states and 34656 transitions. [2023-12-22 02:42:05,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:42:05,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:42:05,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:42:05,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-22 02:42:05,588 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 02:42:05,588 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:42:05,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:42:05,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1973635282, now seen corresponding path program 1 times [2023-12-22 02:42:05,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:42:05,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072210455] [2023-12-22 02:42:05,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:42:05,589 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 02:42:05,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:42:05,590 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 02:42:05,604 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 02:42:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:42:05,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:42:05,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:42:05,814 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 02:42:05,815 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:42:05,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:42:05,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072210455] [2023-12-22 02:42:05,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072210455] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:42:05,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:42:05,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:42:05,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611275120] [2023-12-22 02:42:05,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:42:05,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:42:05,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:42:05,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:42:05,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:42:05,819 INFO L87 Difference]: Start difference. First operand 26836 states and 34656 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:07,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:42:07,683 INFO L93 Difference]: Finished difference Result 27507 states and 35759 transitions. [2023-12-22 02:42:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:42:07,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:42:07,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:42:07,762 INFO L225 Difference]: With dead ends: 27507 [2023-12-22 02:42:07,763 INFO L226 Difference]: Without dead ends: 27194 [2023-12-22 02:42:07,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:42:07,782 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 1209 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 02:42:07,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1240 Valid, 1564 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 02:42:07,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27194 states. [2023-12-22 02:42:09,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27194 to 27165. [2023-12-22 02:42:09,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27165 states, 21149 states have (on average 1.276230554636153) internal successors, (26991), 21682 states have internal predecessors, (26991), 2889 states have call successors, (2889), 1966 states have call predecessors, (2889), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-22 02:42:09,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27165 states to 27165 states and 35196 transitions. [2023-12-22 02:42:09,392 INFO L78 Accepts]: Start accepts. Automaton has 27165 states and 35196 transitions. Word has length 152 [2023-12-22 02:42:09,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:42:09,392 INFO L495 AbstractCegarLoop]: Abstraction has 27165 states and 35196 transitions. [2023-12-22 02:42:09,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:09,393 INFO L276 IsEmpty]: Start isEmpty. Operand 27165 states and 35196 transitions. [2023-12-22 02:42:09,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:42:09,396 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:42:09,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:42:09,412 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 02:42:09,600 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 02:42:09,602 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:42:09,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:42:09,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1784366130, now seen corresponding path program 1 times [2023-12-22 02:42:09,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:42:09,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848406903] [2023-12-22 02:42:09,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:42:09,603 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 02:42:09,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:42:09,604 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 02:42:09,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-22 02:42:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:42:09,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:42:09,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:42:09,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:42:09,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:42:09,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:42:09,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [848406903] [2023-12-22 02:42:09,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [848406903] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:42:09,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:42:09,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:42:09,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434085441] [2023-12-22 02:42:09,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:42:09,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:42:09,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:42:09,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:42:09,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:42:09,823 INFO L87 Difference]: Start difference. First operand 27165 states and 35196 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:11,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:42:11,403 INFO L93 Difference]: Finished difference Result 27807 states and 36249 transitions. [2023-12-22 02:42:11,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:42:11,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:42:11,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:42:11,479 INFO L225 Difference]: With dead ends: 27807 [2023-12-22 02:42:11,479 INFO L226 Difference]: Without dead ends: 27165 [2023-12-22 02:42:11,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:42:11,497 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 906 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:42:11,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 1044 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:42:11,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27165 states. [2023-12-22 02:42:12,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27165 to 27165. [2023-12-22 02:42:12,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27165 states, 21149 states have (on average 1.2758995697196085) internal successors, (26984), 21682 states have internal predecessors, (26984), 2889 states have call successors, (2889), 1966 states have call predecessors, (2889), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-22 02:42:12,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27165 states to 27165 states and 35189 transitions. [2023-12-22 02:42:12,930 INFO L78 Accepts]: Start accepts. Automaton has 27165 states and 35189 transitions. Word has length 152 [2023-12-22 02:42:12,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:42:12,930 INFO L495 AbstractCegarLoop]: Abstraction has 27165 states and 35189 transitions. [2023-12-22 02:42:12,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:12,930 INFO L276 IsEmpty]: Start isEmpty. Operand 27165 states and 35189 transitions. [2023-12-22 02:42:12,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:42:12,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:42:12,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:42:12,955 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 02:42:13,139 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 02:42:13,140 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:42:13,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:42:13,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1965728592, now seen corresponding path program 1 times [2023-12-22 02:42:13,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:42:13,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877735367] [2023-12-22 02:42:13,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:42:13,142 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 02:42:13,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:42:13,143 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 02:42:13,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-22 02:42:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:42:13,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:42:13,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:42:13,367 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 02:42:13,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:42:13,367 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:42:13,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877735367] [2023-12-22 02:42:13,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877735367] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:42:13,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:42:13,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:42:13,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104525073] [2023-12-22 02:42:13,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:42:13,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:42:13,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:42:13,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:42:13,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:42:13,370 INFO L87 Difference]: Start difference. First operand 27165 states and 35189 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:15,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:42:15,195 INFO L93 Difference]: Finished difference Result 27807 states and 36235 transitions. [2023-12-22 02:42:15,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:42:15,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:42:15,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:42:15,259 INFO L225 Difference]: With dead ends: 27807 [2023-12-22 02:42:15,260 INFO L226 Difference]: Without dead ends: 27165 [2023-12-22 02:42:15,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:42:15,271 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 899 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:42:15,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [930 Valid, 1037 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:42:15,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27165 states. [2023-12-22 02:42:16,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27165 to 27165. [2023-12-22 02:42:16,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27165 states, 21149 states have (on average 1.275568584803064) internal successors, (26977), 21682 states have internal predecessors, (26977), 2889 states have call successors, (2889), 1966 states have call predecessors, (2889), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-22 02:42:16,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27165 states to 27165 states and 35182 transitions. [2023-12-22 02:42:16,917 INFO L78 Accepts]: Start accepts. Automaton has 27165 states and 35182 transitions. Word has length 152 [2023-12-22 02:42:16,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:42:16,917 INFO L495 AbstractCegarLoop]: Abstraction has 27165 states and 35182 transitions. [2023-12-22 02:42:16,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:16,917 INFO L276 IsEmpty]: Start isEmpty. Operand 27165 states and 35182 transitions. [2023-12-22 02:42:16,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:42:16,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:42:16,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:42:16,926 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 02:42:17,125 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 02:42:17,126 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:42:17,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:42:17,127 INFO L85 PathProgramCache]: Analyzing trace with hash -827690540, now seen corresponding path program 1 times [2023-12-22 02:42:17,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:42:17,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98014209] [2023-12-22 02:42:17,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:42:17,128 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 02:42:17,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:42:17,130 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 02:42:17,131 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 02:42:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:42:17,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:42:17,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:42:17,327 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 02:42:17,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:42:17,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:42:17,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98014209] [2023-12-22 02:42:17,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98014209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:42:17,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:42:17,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:42:17,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044118661] [2023-12-22 02:42:17,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:42:17,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:42:17,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:42:17,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:42:17,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:42:17,329 INFO L87 Difference]: Start difference. First operand 27165 states and 35182 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:19,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:42:19,158 INFO L93 Difference]: Finished difference Result 27807 states and 36221 transitions. [2023-12-22 02:42:19,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:42:19,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:42:19,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:42:19,229 INFO L225 Difference]: With dead ends: 27807 [2023-12-22 02:42:19,230 INFO L226 Difference]: Without dead ends: 27165 [2023-12-22 02:42:19,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:42:19,243 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 893 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:42:19,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 1030 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:42:19,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27165 states. [2023-12-22 02:42:20,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27165 to 27165. [2023-12-22 02:42:20,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27165 states, 21149 states have (on average 1.2752375998865195) internal successors, (26970), 21682 states have internal predecessors, (26970), 2889 states have call successors, (2889), 1966 states have call predecessors, (2889), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-22 02:42:20,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27165 states to 27165 states and 35175 transitions. [2023-12-22 02:42:20,925 INFO L78 Accepts]: Start accepts. Automaton has 27165 states and 35175 transitions. Word has length 152 [2023-12-22 02:42:20,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:42:20,925 INFO L495 AbstractCegarLoop]: Abstraction has 27165 states and 35175 transitions. [2023-12-22 02:42:20,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:20,926 INFO L276 IsEmpty]: Start isEmpty. Operand 27165 states and 35175 transitions. [2023-12-22 02:42:20,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:42:20,929 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:42:20,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:42:20,939 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 (21)] Ended with exit code 0 [2023-12-22 02:42:21,139 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 02:42:21,140 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:42:21,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:42:21,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1853145808, now seen corresponding path program 1 times [2023-12-22 02:42:21,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:42:21,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007581520] [2023-12-22 02:42:21,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:42:21,141 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:42:21,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:42:21,142 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 02:42:21,144 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 02:42:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:42:21,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:42:21,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:42:21,338 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 02:42:21,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:42:21,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:42:21,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007581520] [2023-12-22 02:42:21,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2007581520] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:42:21,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:42:21,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:42:21,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965112729] [2023-12-22 02:42:21,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:42:21,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:42:21,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:42:21,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:42:21,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:42:21,340 INFO L87 Difference]: Start difference. First operand 27165 states and 35175 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:23,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:42:23,458 INFO L93 Difference]: Finished difference Result 27807 states and 36207 transitions. [2023-12-22 02:42:23,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:42:23,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:42:23,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:42:23,550 INFO L225 Difference]: With dead ends: 27807 [2023-12-22 02:42:23,550 INFO L226 Difference]: Without dead ends: 27165 [2023-12-22 02:42:23,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:42:23,592 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 887 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:42:23,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 1023 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:42:23,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27165 states. [2023-12-22 02:42:25,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27165 to 27165. [2023-12-22 02:42:25,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27165 states, 21149 states have (on average 1.274906614969975) internal successors, (26963), 21682 states have internal predecessors, (26963), 2889 states have call successors, (2889), 1966 states have call predecessors, (2889), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-22 02:42:25,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27165 states to 27165 states and 35168 transitions. [2023-12-22 02:42:25,762 INFO L78 Accepts]: Start accepts. Automaton has 27165 states and 35168 transitions. Word has length 152 [2023-12-22 02:42:25,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:42:25,763 INFO L495 AbstractCegarLoop]: Abstraction has 27165 states and 35168 transitions. [2023-12-22 02:42:25,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:25,763 INFO L276 IsEmpty]: Start isEmpty. Operand 27165 states and 35168 transitions. [2023-12-22 02:42:25,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:42:25,765 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:42:25,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:42:25,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-22 02:42:25,971 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 02:42:25,972 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:42:25,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:42:25,973 INFO L85 PathProgramCache]: Analyzing trace with hash 2078171732, now seen corresponding path program 1 times [2023-12-22 02:42:25,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:42:25,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178683018] [2023-12-22 02:42:25,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:42:25,973 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 02:42:25,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:42:25,974 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 02:42:25,976 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 02:42:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:42:26,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:42:26,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:42:26,176 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 02:42:26,176 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:42:26,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:42:26,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178683018] [2023-12-22 02:42:26,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [178683018] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:42:26,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:42:26,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:42:26,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008362391] [2023-12-22 02:42:26,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:42:26,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:42:26,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:42:26,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:42:26,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:42:26,178 INFO L87 Difference]: Start difference. First operand 27165 states and 35168 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:28,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:42:28,456 INFO L93 Difference]: Finished difference Result 27807 states and 36193 transitions. [2023-12-22 02:42:28,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:42:28,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:42:28,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:42:28,535 INFO L225 Difference]: With dead ends: 27807 [2023-12-22 02:42:28,535 INFO L226 Difference]: Without dead ends: 27165 [2023-12-22 02:42:28,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:42:28,560 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 881 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:42:28,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 1016 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:42:28,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27165 states. [2023-12-22 02:42:30,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27165 to 27165. [2023-12-22 02:42:30,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27165 states, 21149 states have (on average 1.2745756300534303) internal successors, (26956), 21682 states have internal predecessors, (26956), 2889 states have call successors, (2889), 1966 states have call predecessors, (2889), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-22 02:42:30,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27165 states to 27165 states and 35161 transitions. [2023-12-22 02:42:30,676 INFO L78 Accepts]: Start accepts. Automaton has 27165 states and 35161 transitions. Word has length 152 [2023-12-22 02:42:30,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:42:30,700 INFO L495 AbstractCegarLoop]: Abstraction has 27165 states and 35161 transitions. [2023-12-22 02:42:30,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:30,701 INFO L276 IsEmpty]: Start isEmpty. Operand 27165 states and 35161 transitions. [2023-12-22 02:42:30,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:42:30,704 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:42:30,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:42:30,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-22 02:42:30,904 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 02:42:30,906 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:42:30,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:42:30,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1254146640, now seen corresponding path program 1 times [2023-12-22 02:42:30,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:42:30,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758101926] [2023-12-22 02:42:30,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:42:30,907 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 02:42:30,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:42:30,908 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 02:42:30,910 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 02:42:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:42:31,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:42:31,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:42:31,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:42:31,098 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:42:31,098 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:42:31,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758101926] [2023-12-22 02:42:31,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758101926] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:42:31,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:42:31,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:42:31,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354301833] [2023-12-22 02:42:31,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:42:31,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:42:31,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:42:31,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:42:31,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:42:31,100 INFO L87 Difference]: Start difference. First operand 27165 states and 35161 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:33,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:42:33,514 INFO L93 Difference]: Finished difference Result 27807 states and 36179 transitions. [2023-12-22 02:42:33,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:42:33,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:42:33,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:42:33,581 INFO L225 Difference]: With dead ends: 27807 [2023-12-22 02:42:33,582 INFO L226 Difference]: Without dead ends: 27165 [2023-12-22 02:42:33,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:42:33,592 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 875 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:42:33,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [906 Valid, 1009 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:42:33,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27165 states. [2023-12-22 02:42:35,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27165 to 27165. [2023-12-22 02:42:35,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27165 states, 21149 states have (on average 1.2742446451368858) internal successors, (26949), 21682 states have internal predecessors, (26949), 2889 states have call successors, (2889), 1966 states have call predecessors, (2889), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-22 02:42:35,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27165 states to 27165 states and 35154 transitions. [2023-12-22 02:42:35,709 INFO L78 Accepts]: Start accepts. Automaton has 27165 states and 35154 transitions. Word has length 152 [2023-12-22 02:42:35,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:42:35,709 INFO L495 AbstractCegarLoop]: Abstraction has 27165 states and 35154 transitions. [2023-12-22 02:42:35,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:35,709 INFO L276 IsEmpty]: Start isEmpty. Operand 27165 states and 35154 transitions. [2023-12-22 02:42:35,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:42:35,712 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:42:35,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:42:35,716 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 02:42:35,916 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 02:42:35,917 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:42:35,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:42:35,918 INFO L85 PathProgramCache]: Analyzing trace with hash -296455468, now seen corresponding path program 1 times [2023-12-22 02:42:35,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:42:35,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073060263] [2023-12-22 02:42:35,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:42:35,918 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:42:35,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:42:35,919 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 02:42:35,961 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 02:42:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:42:36,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:42:36,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:42:36,150 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 02:42:36,150 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:42:36,150 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:42:36,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073060263] [2023-12-22 02:42:36,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073060263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:42:36,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:42:36,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:42:36,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286897674] [2023-12-22 02:42:36,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:42:36,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:42:36,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:42:36,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:42:36,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:42:36,152 INFO L87 Difference]: Start difference. First operand 27165 states and 35154 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:38,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:42:38,588 INFO L93 Difference]: Finished difference Result 27807 states and 36165 transitions. [2023-12-22 02:42:38,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:42:38,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:42:38,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:42:38,660 INFO L225 Difference]: With dead ends: 27807 [2023-12-22 02:42:38,661 INFO L226 Difference]: Without dead ends: 27165 [2023-12-22 02:42:38,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:42:38,673 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 869 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:42:38,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 1002 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:42:38,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27165 states. [2023-12-22 02:42:40,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27165 to 27165. [2023-12-22 02:42:40,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27165 states, 21149 states have (on average 1.2739136602203414) internal successors, (26942), 21682 states have internal predecessors, (26942), 2889 states have call successors, (2889), 1966 states have call predecessors, (2889), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-22 02:42:40,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27165 states to 27165 states and 35147 transitions. [2023-12-22 02:42:40,968 INFO L78 Accepts]: Start accepts. Automaton has 27165 states and 35147 transitions. Word has length 152 [2023-12-22 02:42:40,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:42:40,968 INFO L495 AbstractCegarLoop]: Abstraction has 27165 states and 35147 transitions. [2023-12-22 02:42:40,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:40,969 INFO L276 IsEmpty]: Start isEmpty. Operand 27165 states and 35147 transitions. [2023-12-22 02:42:40,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:42:40,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:42:40,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:42:40,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-22 02:42:41,180 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 02:42:41,181 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:42:41,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:42:41,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1593400880, now seen corresponding path program 1 times [2023-12-22 02:42:41,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:42:41,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1940898266] [2023-12-22 02:42:41,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:42:41,182 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 02:42:41,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:42:41,183 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 02:42:41,189 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 02:42:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:42:41,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:42:41,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:42:41,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:42:41,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:42:41,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:42:41,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1940898266] [2023-12-22 02:42:41,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1940898266] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:42:41,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:42:41,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:42:41,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605777977] [2023-12-22 02:42:41,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:42:41,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:42:41,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:42:41,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:42:41,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:42:41,391 INFO L87 Difference]: Start difference. First operand 27165 states and 35147 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:43,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:42:43,957 INFO L93 Difference]: Finished difference Result 27807 states and 36151 transitions. [2023-12-22 02:42:43,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:42:43,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:42:43,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:42:44,037 INFO L225 Difference]: With dead ends: 27807 [2023-12-22 02:42:44,038 INFO L226 Difference]: Without dead ends: 27165 [2023-12-22 02:42:44,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:42:44,053 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 863 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:42:44,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 995 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:42:44,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27165 states. [2023-12-22 02:42:46,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27165 to 27165. [2023-12-22 02:42:46,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27165 states, 21149 states have (on average 1.2735826753037969) internal successors, (26935), 21682 states have internal predecessors, (26935), 2889 states have call successors, (2889), 1966 states have call predecessors, (2889), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-22 02:42:46,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27165 states to 27165 states and 35140 transitions. [2023-12-22 02:42:46,592 INFO L78 Accepts]: Start accepts. Automaton has 27165 states and 35140 transitions. Word has length 152 [2023-12-22 02:42:46,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:42:46,592 INFO L495 AbstractCegarLoop]: Abstraction has 27165 states and 35140 transitions. [2023-12-22 02:42:46,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:46,593 INFO L276 IsEmpty]: Start isEmpty. Operand 27165 states and 35140 transitions. [2023-12-22 02:42:46,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:42:46,595 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:42:46,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:42:46,600 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-12-22 02:42:46,800 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 02:42:46,801 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:42:46,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:42:46,801 INFO L85 PathProgramCache]: Analyzing trace with hash -731567278, now seen corresponding path program 1 times [2023-12-22 02:42:46,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:42:46,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [237769649] [2023-12-22 02:42:46,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:42:46,802 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:42:46,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:42:46,803 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 02:42:46,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-22 02:42:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:42:46,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:42:46,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:42:46,994 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 02:42:46,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:42:46,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:42:46,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [237769649] [2023-12-22 02:42:46,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [237769649] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:42:46,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:42:46,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:42:46,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051680510] [2023-12-22 02:42:46,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:42:46,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:42:46,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:42:46,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:42:46,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:42:46,997 INFO L87 Difference]: Start difference. First operand 27165 states and 35140 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:49,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:42:49,635 INFO L93 Difference]: Finished difference Result 27807 states and 36137 transitions. [2023-12-22 02:42:49,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:42:49,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:42:49,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:42:49,702 INFO L225 Difference]: With dead ends: 27807 [2023-12-22 02:42:49,703 INFO L226 Difference]: Without dead ends: 27165 [2023-12-22 02:42:49,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:42:49,716 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 856 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:42:49,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 988 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:42:49,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27165 states. [2023-12-22 02:42:52,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27165 to 27165. [2023-12-22 02:42:52,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27165 states, 21149 states have (on average 1.2732516903872524) internal successors, (26928), 21682 states have internal predecessors, (26928), 2889 states have call successors, (2889), 1966 states have call predecessors, (2889), 3125 states have return successors, (5316), 3517 states have call predecessors, (5316), 2885 states have call successors, (5316) [2023-12-22 02:42:52,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27165 states to 27165 states and 35133 transitions. [2023-12-22 02:42:52,388 INFO L78 Accepts]: Start accepts. Automaton has 27165 states and 35133 transitions. Word has length 152 [2023-12-22 02:42:52,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:42:52,389 INFO L495 AbstractCegarLoop]: Abstraction has 27165 states and 35133 transitions. [2023-12-22 02:42:52,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:52,389 INFO L276 IsEmpty]: Start isEmpty. Operand 27165 states and 35133 transitions. [2023-12-22 02:42:52,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:42:52,392 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:42:52,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:42:52,399 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 02:42:52,596 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 02:42:52,597 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:42:52,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:42:52,597 INFO L85 PathProgramCache]: Analyzing trace with hash 458079702, now seen corresponding path program 1 times [2023-12-22 02:42:52,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:42:52,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146045746] [2023-12-22 02:42:52,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:42:52,598 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:42:52,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:42:52,599 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 02:42:52,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-22 02:42:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:42:52,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:42:52,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:42:52,835 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 02:42:52,836 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:42:52,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:42:52,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146045746] [2023-12-22 02:42:52,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146045746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:42:52,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:42:52,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:42:52,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478881607] [2023-12-22 02:42:52,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:42:52,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:42:52,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:42:52,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:42:52,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:42:52,840 INFO L87 Difference]: Start difference. First operand 27165 states and 35133 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:56,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:42:56,070 INFO L93 Difference]: Finished difference Result 27961 states and 36375 transitions. [2023-12-22 02:42:56,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:42:56,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:42:56,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:42:56,126 INFO L225 Difference]: With dead ends: 27961 [2023-12-22 02:42:56,126 INFO L226 Difference]: Without dead ends: 27319 [2023-12-22 02:42:56,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:42:56,138 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 955 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:42:56,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 982 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:42:56,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27319 states. [2023-12-22 02:42:58,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27319 to 27319. [2023-12-22 02:42:58,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27319 states, 21297 states have (on average 1.2743109358125557) internal successors, (27139), 21830 states have internal predecessors, (27139), 2891 states have call successors, (2891), 1970 states have call predecessors, (2891), 3129 states have return successors, (5318), 3519 states have call predecessors, (5318), 2887 states have call successors, (5318) [2023-12-22 02:42:58,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27319 states to 27319 states and 35348 transitions. [2023-12-22 02:42:58,707 INFO L78 Accepts]: Start accepts. Automaton has 27319 states and 35348 transitions. Word has length 152 [2023-12-22 02:42:58,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:42:58,707 INFO L495 AbstractCegarLoop]: Abstraction has 27319 states and 35348 transitions. [2023-12-22 02:42:58,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:42:58,707 INFO L276 IsEmpty]: Start isEmpty. Operand 27319 states and 35348 transitions. [2023-12-22 02:42:58,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:42:58,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:42:58,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:42:58,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-22 02:42:58,916 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 02:42:58,917 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:42:58,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:42:58,917 INFO L85 PathProgramCache]: Analyzing trace with hash -611923246, now seen corresponding path program 1 times [2023-12-22 02:42:58,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:42:58,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244109348] [2023-12-22 02:42:58,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:42:58,918 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:42:58,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:42:58,919 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 02:42:58,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-22 02:42:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:42:59,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:42:59,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:42:59,116 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 02:42:59,116 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:42:59,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:42:59,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244109348] [2023-12-22 02:42:59,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244109348] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:42:59,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:42:59,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:42:59,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231964573] [2023-12-22 02:42:59,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:42:59,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:42:59,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:42:59,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:42:59,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:42:59,117 INFO L87 Difference]: Start difference. First operand 27319 states and 35348 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:02,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:02,150 INFO L93 Difference]: Finished difference Result 28269 states and 36805 transitions. [2023-12-22 02:43:02,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:02,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:43:02,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:02,216 INFO L225 Difference]: With dead ends: 28269 [2023-12-22 02:43:02,216 INFO L226 Difference]: Without dead ends: 27473 [2023-12-22 02:43:02,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:02,229 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 948 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:02,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 975 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:43:02,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27473 states. [2023-12-22 02:43:04,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27473 to 27473. [2023-12-22 02:43:04,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27473 states, 21445 states have (on average 1.2751690370715785) internal successors, (27346), 21978 states have internal predecessors, (27346), 2893 states have call successors, (2893), 1974 states have call predecessors, (2893), 3133 states have return successors, (5320), 3521 states have call predecessors, (5320), 2889 states have call successors, (5320) [2023-12-22 02:43:04,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27473 states to 27473 states and 35559 transitions. [2023-12-22 02:43:04,949 INFO L78 Accepts]: Start accepts. Automaton has 27473 states and 35559 transitions. Word has length 152 [2023-12-22 02:43:04,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:04,949 INFO L495 AbstractCegarLoop]: Abstraction has 27473 states and 35559 transitions. [2023-12-22 02:43:04,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:04,949 INFO L276 IsEmpty]: Start isEmpty. Operand 27473 states and 35559 transitions. [2023-12-22 02:43:04,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:43:04,951 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:04,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:04,959 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 02:43:05,156 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 02:43:05,157 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:05,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:05,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1676508503, now seen corresponding path program 1 times [2023-12-22 02:43:05,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:05,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634184083] [2023-12-22 02:43:05,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:05,159 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 02:43:05,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:05,160 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 02:43:05,161 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 02:43:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:05,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:05,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:05,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:05,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:05,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:05,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1634184083] [2023-12-22 02:43:05,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1634184083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:05,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:05,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:05,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151886293] [2023-12-22 02:43:05,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:05,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:05,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:05,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:05,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:05,367 INFO L87 Difference]: Start difference. First operand 27473 states and 35559 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:08,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:08,807 INFO L93 Difference]: Finished difference Result 28577 states and 37227 transitions. [2023-12-22 02:43:08,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:08,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:43:08,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:08,876 INFO L225 Difference]: With dead ends: 28577 [2023-12-22 02:43:08,877 INFO L226 Difference]: Without dead ends: 27627 [2023-12-22 02:43:08,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:08,892 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 942 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:08,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 968 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:43:08,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27627 states. [2023-12-22 02:43:11,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27627 to 27627. [2023-12-22 02:43:11,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27627 states, 21593 states have (on average 1.2758301301347659) internal successors, (27549), 22126 states have internal predecessors, (27549), 2895 states have call successors, (2895), 1978 states have call predecessors, (2895), 3137 states have return successors, (5322), 3523 states have call predecessors, (5322), 2891 states have call successors, (5322) [2023-12-22 02:43:11,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27627 states to 27627 states and 35766 transitions. [2023-12-22 02:43:11,650 INFO L78 Accepts]: Start accepts. Automaton has 27627 states and 35766 transitions. Word has length 152 [2023-12-22 02:43:11,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:11,651 INFO L495 AbstractCegarLoop]: Abstraction has 27627 states and 35766 transitions. [2023-12-22 02:43:11,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:11,651 INFO L276 IsEmpty]: Start isEmpty. Operand 27627 states and 35766 transitions. [2023-12-22 02:43:11,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:43:11,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:11,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:11,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2023-12-22 02:43:11,856 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 02:43:11,857 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:11,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:11,857 INFO L85 PathProgramCache]: Analyzing trace with hash -675440301, now seen corresponding path program 1 times [2023-12-22 02:43:11,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:11,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212379249] [2023-12-22 02:43:11,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:11,858 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 02:43:11,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:11,859 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 02:43:11,861 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 02:43:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:12,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:12,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:12,069 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 02:43:12,069 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:12,069 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:12,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212379249] [2023-12-22 02:43:12,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212379249] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:12,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:12,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:12,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145542227] [2023-12-22 02:43:12,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:12,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:12,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:12,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:12,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:12,071 INFO L87 Difference]: Start difference. First operand 27627 states and 35766 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:15,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:15,081 INFO L93 Difference]: Finished difference Result 28885 states and 37641 transitions. [2023-12-22 02:43:15,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:15,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:43:15,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:15,161 INFO L225 Difference]: With dead ends: 28885 [2023-12-22 02:43:15,161 INFO L226 Difference]: Without dead ends: 27781 [2023-12-22 02:43:15,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:15,177 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 935 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:15,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [966 Valid, 961 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:43:15,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27781 states. [2023-12-22 02:43:18,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27781 to 27781. [2023-12-22 02:43:18,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27781 states, 21741 states have (on average 1.2762982383515018) internal successors, (27748), 22274 states have internal predecessors, (27748), 2897 states have call successors, (2897), 1982 states have call predecessors, (2897), 3141 states have return successors, (5324), 3525 states have call predecessors, (5324), 2893 states have call successors, (5324) [2023-12-22 02:43:18,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27781 states to 27781 states and 35969 transitions. [2023-12-22 02:43:18,118 INFO L78 Accepts]: Start accepts. Automaton has 27781 states and 35969 transitions. Word has length 152 [2023-12-22 02:43:18,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:18,118 INFO L495 AbstractCegarLoop]: Abstraction has 27781 states and 35969 transitions. [2023-12-22 02:43:18,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:18,119 INFO L276 IsEmpty]: Start isEmpty. Operand 27781 states and 35969 transitions. [2023-12-22 02:43:18,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:43:18,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:18,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:18,128 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 02:43:18,323 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 02:43:18,323 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:18,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:18,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1860896232, now seen corresponding path program 1 times [2023-12-22 02:43:18,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:18,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874155207] [2023-12-22 02:43:18,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:18,331 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 02:43:18,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:18,332 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 02:43:18,333 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 02:43:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:18,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:18,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:18,524 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 02:43:18,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:18,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:18,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874155207] [2023-12-22 02:43:18,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874155207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:18,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:18,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:18,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237669788] [2023-12-22 02:43:18,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:18,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:18,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:18,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:18,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:18,526 INFO L87 Difference]: Start difference. First operand 27781 states and 35969 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:21,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:21,717 INFO L93 Difference]: Finished difference Result 29193 states and 38047 transitions. [2023-12-22 02:43:21,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:21,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:43:21,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:21,805 INFO L225 Difference]: With dead ends: 29193 [2023-12-22 02:43:21,805 INFO L226 Difference]: Without dead ends: 27935 [2023-12-22 02:43:21,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:21,820 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 928 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:21,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 954 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:43:21,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27935 states. [2023-12-22 02:43:24,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27935 to 27935. [2023-12-22 02:43:24,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27935 states, 21889 states have (on average 1.276577276257481) internal successors, (27943), 22422 states have internal predecessors, (27943), 2899 states have call successors, (2899), 1986 states have call predecessors, (2899), 3145 states have return successors, (5326), 3527 states have call predecessors, (5326), 2895 states have call successors, (5326) [2023-12-22 02:43:25,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27935 states to 27935 states and 36168 transitions. [2023-12-22 02:43:25,028 INFO L78 Accepts]: Start accepts. Automaton has 27935 states and 36168 transitions. Word has length 152 [2023-12-22 02:43:25,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:25,029 INFO L495 AbstractCegarLoop]: Abstraction has 27935 states and 36168 transitions. [2023-12-22 02:43:25,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:25,029 INFO L276 IsEmpty]: Start isEmpty. Operand 27935 states and 36168 transitions. [2023-12-22 02:43:25,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:43:25,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:25,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:25,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2023-12-22 02:43:25,232 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 02:43:25,234 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:25,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:25,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1708561459, now seen corresponding path program 1 times [2023-12-22 02:43:25,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:25,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139656945] [2023-12-22 02:43:25,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:25,235 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 02:43:25,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:25,238 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 02:43:25,239 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 02:43:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:25,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:25,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:25,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:25,435 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:25,435 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:25,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139656945] [2023-12-22 02:43:25,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139656945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:25,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:25,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:25,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992124454] [2023-12-22 02:43:25,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:25,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:25,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:25,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:25,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:25,436 INFO L87 Difference]: Start difference. First operand 27935 states and 36168 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:28,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:28,726 INFO L93 Difference]: Finished difference Result 29501 states and 38445 transitions. [2023-12-22 02:43:28,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:28,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:43:28,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:28,801 INFO L225 Difference]: With dead ends: 29501 [2023-12-22 02:43:28,801 INFO L226 Difference]: Without dead ends: 28089 [2023-12-22 02:43:28,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:28,816 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 921 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:28,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [952 Valid, 947 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:43:28,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28089 states. [2023-12-22 02:43:31,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28089 to 28089. [2023-12-22 02:43:31,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28089 states, 22037 states have (on average 1.276671053228661) internal successors, (28134), 22570 states have internal predecessors, (28134), 2901 states have call successors, (2901), 1990 states have call predecessors, (2901), 3149 states have return successors, (5328), 3529 states have call predecessors, (5328), 2897 states have call successors, (5328) [2023-12-22 02:43:31,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28089 states to 28089 states and 36363 transitions. [2023-12-22 02:43:31,922 INFO L78 Accepts]: Start accepts. Automaton has 28089 states and 36363 transitions. Word has length 152 [2023-12-22 02:43:31,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:31,923 INFO L495 AbstractCegarLoop]: Abstraction has 28089 states and 36363 transitions. [2023-12-22 02:43:31,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:31,923 INFO L276 IsEmpty]: Start isEmpty. Operand 28089 states and 36363 transitions. [2023-12-22 02:43:31,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:43:31,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:31,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:31,930 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 02:43:32,128 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 02:43:32,129 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:32,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:32,131 INFO L85 PathProgramCache]: Analyzing trace with hash -657473611, now seen corresponding path program 1 times [2023-12-22 02:43:32,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:32,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099665618] [2023-12-22 02:43:32,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:32,131 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 02:43:32,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:32,132 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 02:43:32,133 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 02:43:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:32,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:32,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:32,337 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 02:43:32,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:32,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:32,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099665618] [2023-12-22 02:43:32,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099665618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:32,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:32,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:32,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25611342] [2023-12-22 02:43:32,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:32,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:32,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:32,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:32,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:32,339 INFO L87 Difference]: Start difference. First operand 28089 states and 36363 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:35,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:35,643 INFO L93 Difference]: Finished difference Result 29809 states and 38835 transitions. [2023-12-22 02:43:35,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:35,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:43:35,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:35,719 INFO L225 Difference]: With dead ends: 29809 [2023-12-22 02:43:35,719 INFO L226 Difference]: Without dead ends: 28243 [2023-12-22 02:43:35,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:35,734 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 913 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:35,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 940 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:43:35,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28243 states. [2023-12-22 02:43:38,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28243 to 28243. [2023-12-22 02:43:38,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28243 states, 22185 states have (on average 1.2765832769889565) internal successors, (28321), 22718 states have internal predecessors, (28321), 2903 states have call successors, (2903), 1994 states have call predecessors, (2903), 3153 states have return successors, (5330), 3531 states have call predecessors, (5330), 2899 states have call successors, (5330) [2023-12-22 02:43:39,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28243 states to 28243 states and 36554 transitions. [2023-12-22 02:43:39,058 INFO L78 Accepts]: Start accepts. Automaton has 28243 states and 36554 transitions. Word has length 152 [2023-12-22 02:43:39,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:39,058 INFO L495 AbstractCegarLoop]: Abstraction has 28243 states and 36554 transitions. [2023-12-22 02:43:39,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:39,059 INFO L276 IsEmpty]: Start isEmpty. Operand 28243 states and 36554 transitions. [2023-12-22 02:43:39,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:43:39,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:39,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:39,069 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 02:43:39,267 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 02:43:39,267 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:39,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:39,268 INFO L85 PathProgramCache]: Analyzing trace with hash -735766983, now seen corresponding path program 1 times [2023-12-22 02:43:39,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:39,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448287041] [2023-12-22 02:43:39,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:39,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:39,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:39,269 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 02:43:39,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-22 02:43:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:39,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:39,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:39,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:43:39,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:39,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:39,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448287041] [2023-12-22 02:43:39,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448287041] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:39,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:39,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:39,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363455065] [2023-12-22 02:43:39,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:39,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:39,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:39,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:39,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:39,466 INFO L87 Difference]: Start difference. First operand 28243 states and 36554 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:43,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:43,035 INFO L93 Difference]: Finished difference Result 30117 states and 39217 transitions. [2023-12-22 02:43:43,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:43,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:43:43,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:43,105 INFO L225 Difference]: With dead ends: 30117 [2023-12-22 02:43:43,105 INFO L226 Difference]: Without dead ends: 28397 [2023-12-22 02:43:43,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:43,119 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 906 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:43,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 933 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:43:43,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28397 states. [2023-12-22 02:43:46,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28397 to 28397. [2023-12-22 02:43:46,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28397 states, 22333 states have (on average 1.2763175569784624) internal successors, (28504), 22866 states have internal predecessors, (28504), 2905 states have call successors, (2905), 1998 states have call predecessors, (2905), 3157 states have return successors, (5332), 3533 states have call predecessors, (5332), 2901 states have call successors, (5332) [2023-12-22 02:43:46,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28397 states to 28397 states and 36741 transitions. [2023-12-22 02:43:46,422 INFO L78 Accepts]: Start accepts. Automaton has 28397 states and 36741 transitions. Word has length 152 [2023-12-22 02:43:46,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:46,422 INFO L495 AbstractCegarLoop]: Abstraction has 28397 states and 36741 transitions. [2023-12-22 02:43:46,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:46,423 INFO L276 IsEmpty]: Start isEmpty. Operand 28397 states and 36741 transitions. [2023-12-22 02:43:46,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:43:46,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:46,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:46,432 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 02:43:46,630 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 02:43:46,631 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:46,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:46,631 INFO L85 PathProgramCache]: Analyzing trace with hash 659362772, now seen corresponding path program 1 times [2023-12-22 02:43:46,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:46,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849309878] [2023-12-22 02:43:46,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:46,632 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 02:43:46,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:46,633 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 02:43:46,634 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 02:43:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:46,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:46,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:46,816 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 02:43:46,816 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:46,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:46,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849309878] [2023-12-22 02:43:46,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849309878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:46,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:46,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:46,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542746632] [2023-12-22 02:43:46,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:46,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:46,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:46,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:46,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:46,817 INFO L87 Difference]: Start difference. First operand 28397 states and 36741 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:50,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:50,444 INFO L93 Difference]: Finished difference Result 30425 states and 39591 transitions. [2023-12-22 02:43:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:50,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:43:50,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:50,507 INFO L225 Difference]: With dead ends: 30425 [2023-12-22 02:43:50,507 INFO L226 Difference]: Without dead ends: 28551 [2023-12-22 02:43:50,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:50,518 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 899 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:50,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [930 Valid, 926 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:43:50,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28551 states. [2023-12-22 02:43:54,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28551 to 28551. [2023-12-22 02:43:54,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28551 states, 22481 states have (on average 1.2758774075886303) internal successors, (28683), 23014 states have internal predecessors, (28683), 2907 states have call successors, (2907), 2002 states have call predecessors, (2907), 3161 states have return successors, (5334), 3535 states have call predecessors, (5334), 2903 states have call successors, (5334) [2023-12-22 02:43:54,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28551 states to 28551 states and 36924 transitions. [2023-12-22 02:43:54,157 INFO L78 Accepts]: Start accepts. Automaton has 28551 states and 36924 transitions. Word has length 152 [2023-12-22 02:43:54,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:54,158 INFO L495 AbstractCegarLoop]: Abstraction has 28551 states and 36924 transitions. [2023-12-22 02:43:54,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:54,158 INFO L276 IsEmpty]: Start isEmpty. Operand 28551 states and 36924 transitions. [2023-12-22 02:43:54,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:43:54,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:54,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:54,169 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 02:43:54,362 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 02:43:54,363 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:54,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:54,363 INFO L85 PathProgramCache]: Analyzing trace with hash -565298344, now seen corresponding path program 1 times [2023-12-22 02:43:54,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:54,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114470173] [2023-12-22 02:43:54,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:54,364 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:54,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:54,365 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 02:43:54,367 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 02:43:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:54,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:54,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:54,567 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 02:43:54,567 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:54,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:54,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114470173] [2023-12-22 02:43:54,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114470173] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:54,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:54,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:54,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466932153] [2023-12-22 02:43:54,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:54,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:54,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:54,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:54,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:54,569 INFO L87 Difference]: Start difference. First operand 28551 states and 36924 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:43:58,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:58,744 INFO L93 Difference]: Finished difference Result 30733 states and 39957 transitions. [2023-12-22 02:43:58,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:58,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:43:58,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:58,846 INFO L225 Difference]: With dead ends: 30733 [2023-12-22 02:43:58,846 INFO L226 Difference]: Without dead ends: 28705 [2023-12-22 02:43:58,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:58,866 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 892 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:58,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 919 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:43:58,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28705 states. [2023-12-22 02:44:02,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28705 to 28705. [2023-12-22 02:44:02,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28705 states, 22629 states have (on average 1.2752662512704935) internal successors, (28858), 23162 states have internal predecessors, (28858), 2909 states have call successors, (2909), 2006 states have call predecessors, (2909), 3165 states have return successors, (5336), 3537 states have call predecessors, (5336), 2905 states have call successors, (5336) [2023-12-22 02:44:02,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28705 states to 28705 states and 37103 transitions. [2023-12-22 02:44:02,909 INFO L78 Accepts]: Start accepts. Automaton has 28705 states and 37103 transitions. Word has length 152 [2023-12-22 02:44:02,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:02,911 INFO L495 AbstractCegarLoop]: Abstraction has 28705 states and 37103 transitions. [2023-12-22 02:44:02,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:02,911 INFO L276 IsEmpty]: Start isEmpty. Operand 28705 states and 37103 transitions. [2023-12-22 02:44:02,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:44:02,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:02,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:02,921 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 02:44:03,118 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 02:44:03,121 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:03,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:03,121 INFO L85 PathProgramCache]: Analyzing trace with hash 883471027, now seen corresponding path program 1 times [2023-12-22 02:44:03,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:03,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426487777] [2023-12-22 02:44:03,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:03,122 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 02:44:03,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:03,123 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 02:44:03,125 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 02:44:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:03,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:03,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:03,310 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 02:44:03,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:03,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:03,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1426487777] [2023-12-22 02:44:03,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1426487777] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:03,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:03,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:03,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320882051] [2023-12-22 02:44:03,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:03,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:03,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:03,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:03,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:03,314 INFO L87 Difference]: Start difference. First operand 28705 states and 37103 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:07,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:07,126 INFO L93 Difference]: Finished difference Result 31041 states and 40315 transitions. [2023-12-22 02:44:07,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:07,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:44:07,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:07,209 INFO L225 Difference]: With dead ends: 31041 [2023-12-22 02:44:07,210 INFO L226 Difference]: Without dead ends: 28859 [2023-12-22 02:44:07,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:44:07,227 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 885 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:07,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 912 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:44:07,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28859 states. [2023-12-22 02:44:11,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28859 to 28859. [2023-12-22 02:44:11,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28859 states, 22777 states have (on average 1.2744874215217106) internal successors, (29029), 23310 states have internal predecessors, (29029), 2911 states have call successors, (2911), 2010 states have call predecessors, (2911), 3169 states have return successors, (5338), 3539 states have call predecessors, (5338), 2907 states have call successors, (5338) [2023-12-22 02:44:11,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28859 states to 28859 states and 37278 transitions. [2023-12-22 02:44:11,128 INFO L78 Accepts]: Start accepts. Automaton has 28859 states and 37278 transitions. Word has length 152 [2023-12-22 02:44:11,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:11,128 INFO L495 AbstractCegarLoop]: Abstraction has 28859 states and 37278 transitions. [2023-12-22 02:44:11,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:11,128 INFO L276 IsEmpty]: Start isEmpty. Operand 28859 states and 37278 transitions. [2023-12-22 02:44:11,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:44:11,130 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:11,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:11,138 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 02:44:11,335 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 02:44:11,336 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:11,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:11,337 INFO L85 PathProgramCache]: Analyzing trace with hash -375853960, now seen corresponding path program 1 times [2023-12-22 02:44:11,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:11,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148956105] [2023-12-22 02:44:11,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:11,337 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 02:44:11,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:11,338 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 02:44:11,343 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 02:44:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:11,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:11,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:11,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:44:11,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:11,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:11,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148956105] [2023-12-22 02:44:11,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [148956105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:11,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:11,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:11,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479307203] [2023-12-22 02:44:11,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:11,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:11,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:11,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:11,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:11,481 INFO L87 Difference]: Start difference. First operand 28859 states and 37278 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:14,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:14,977 INFO L93 Difference]: Finished difference Result 31334 states and 40644 transitions. [2023-12-22 02:44:14,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:14,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:44:14,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:15,056 INFO L225 Difference]: With dead ends: 31334 [2023-12-22 02:44:15,056 INFO L226 Difference]: Without dead ends: 28999 [2023-12-22 02:44:15,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:15,072 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 101 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1692 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:15,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1692 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:15,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28999 states. [2023-12-22 02:44:18,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28999 to 28863. [2023-12-22 02:44:18,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28863 states, 22781 states have (on average 1.273473508625609) internal successors, (29011), 23314 states have internal predecessors, (29011), 2911 states have call successors, (2911), 2010 states have call predecessors, (2911), 3169 states have return successors, (5338), 3539 states have call predecessors, (5338), 2907 states have call successors, (5338) [2023-12-22 02:44:18,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28863 states to 28863 states and 37260 transitions. [2023-12-22 02:44:18,844 INFO L78 Accepts]: Start accepts. Automaton has 28863 states and 37260 transitions. Word has length 152 [2023-12-22 02:44:18,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:18,844 INFO L495 AbstractCegarLoop]: Abstraction has 28863 states and 37260 transitions. [2023-12-22 02:44:18,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:18,845 INFO L276 IsEmpty]: Start isEmpty. Operand 28863 states and 37260 transitions. [2023-12-22 02:44:18,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:44:18,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:18,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:18,852 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 02:44:19,051 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 02:44:19,051 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:19,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:19,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1682996358, now seen corresponding path program 1 times [2023-12-22 02:44:19,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:19,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114419339] [2023-12-22 02:44:19,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:19,052 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 02:44:19,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:19,053 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 02:44:19,055 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 02:44:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:19,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:19,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:19,213 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 02:44:19,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:19,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:19,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114419339] [2023-12-22 02:44:19,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114419339] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:19,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:19,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:19,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141709162] [2023-12-22 02:44:19,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:19,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:19,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:19,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:19,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:19,215 INFO L87 Difference]: Start difference. First operand 28863 states and 37260 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:22,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:22,796 INFO L93 Difference]: Finished difference Result 31330 states and 40592 transitions. [2023-12-22 02:44:22,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:22,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:44:22,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:22,878 INFO L225 Difference]: With dead ends: 31330 [2023-12-22 02:44:22,878 INFO L226 Difference]: Without dead ends: 28991 [2023-12-22 02:44:22,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:22,894 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 92 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:22,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1696 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:22,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28991 states. [2023-12-22 02:44:26,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28991 to 28867. [2023-12-22 02:44:26,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28867 states, 22785 states have (on average 1.2724599517226245) internal successors, (28993), 23318 states have internal predecessors, (28993), 2911 states have call successors, (2911), 2010 states have call predecessors, (2911), 3169 states have return successors, (5338), 3539 states have call predecessors, (5338), 2907 states have call successors, (5338) [2023-12-22 02:44:26,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28867 states to 28867 states and 37242 transitions. [2023-12-22 02:44:26,693 INFO L78 Accepts]: Start accepts. Automaton has 28867 states and 37242 transitions. Word has length 152 [2023-12-22 02:44:26,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:26,693 INFO L495 AbstractCegarLoop]: Abstraction has 28867 states and 37242 transitions. [2023-12-22 02:44:26,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:26,693 INFO L276 IsEmpty]: Start isEmpty. Operand 28867 states and 37242 transitions. [2023-12-22 02:44:26,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:44:26,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:26,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:26,702 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 02:44:26,902 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 02:44:26,902 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:26,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:26,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1555239736, now seen corresponding path program 1 times [2023-12-22 02:44:26,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:26,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282969364] [2023-12-22 02:44:26,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:26,904 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 02:44:26,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:26,905 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 02:44:26,906 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 02:44:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:27,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:27,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:27,048 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 02:44:27,049 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:27,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:27,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282969364] [2023-12-22 02:44:27,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282969364] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:27,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:27,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:27,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084377754] [2023-12-22 02:44:27,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:27,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:27,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:27,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:27,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:27,052 INFO L87 Difference]: Start difference. First operand 28867 states and 37242 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:30,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:30,600 INFO L93 Difference]: Finished difference Result 31326 states and 40540 transitions. [2023-12-22 02:44:30,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:30,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:44:30,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:30,675 INFO L225 Difference]: With dead ends: 31326 [2023-12-22 02:44:30,675 INFO L226 Difference]: Without dead ends: 28983 [2023-12-22 02:44:30,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:30,691 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 83 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:30,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1694 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:30,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28983 states. [2023-12-22 02:44:34,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28983 to 28871. [2023-12-22 02:44:34,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28871 states, 22789 states have (on average 1.2714467506253018) internal successors, (28975), 23322 states have internal predecessors, (28975), 2911 states have call successors, (2911), 2010 states have call predecessors, (2911), 3169 states have return successors, (5338), 3539 states have call predecessors, (5338), 2907 states have call successors, (5338) [2023-12-22 02:44:34,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28871 states to 28871 states and 37224 transitions. [2023-12-22 02:44:34,490 INFO L78 Accepts]: Start accepts. Automaton has 28871 states and 37224 transitions. Word has length 152 [2023-12-22 02:44:34,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:34,490 INFO L495 AbstractCegarLoop]: Abstraction has 28871 states and 37224 transitions. [2023-12-22 02:44:34,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:34,490 INFO L276 IsEmpty]: Start isEmpty. Operand 28871 states and 37224 transitions. [2023-12-22 02:44:34,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:44:34,492 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:34,492 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:34,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:34,697 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 02:44:34,698 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:34,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:34,698 INFO L85 PathProgramCache]: Analyzing trace with hash -385342278, now seen corresponding path program 1 times [2023-12-22 02:44:34,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:34,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257197891] [2023-12-22 02:44:34,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:34,699 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 02:44:34,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:34,700 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 02:44:34,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-22 02:44:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:34,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:34,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:34,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:44:34,838 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:34,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:34,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257197891] [2023-12-22 02:44:34,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257197891] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:34,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:34,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:34,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619847329] [2023-12-22 02:44:34,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:34,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:34,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:34,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:34,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:34,839 INFO L87 Difference]: Start difference. First operand 28871 states and 37224 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:38,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:38,371 INFO L93 Difference]: Finished difference Result 31322 states and 40488 transitions. [2023-12-22 02:44:38,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:38,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:44:38,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:38,456 INFO L225 Difference]: With dead ends: 31322 [2023-12-22 02:44:38,456 INFO L226 Difference]: Without dead ends: 28975 [2023-12-22 02:44:38,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:38,472 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 74 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:38,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1695 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:38,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28975 states. [2023-12-22 02:44:42,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28975 to 28875. [2023-12-22 02:44:42,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28875 states, 22793 states have (on average 1.270433905146317) internal successors, (28957), 23326 states have internal predecessors, (28957), 2911 states have call successors, (2911), 2010 states have call predecessors, (2911), 3169 states have return successors, (5338), 3539 states have call predecessors, (5338), 2907 states have call successors, (5338) [2023-12-22 02:44:42,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28875 states to 28875 states and 37206 transitions. [2023-12-22 02:44:42,187 INFO L78 Accepts]: Start accepts. Automaton has 28875 states and 37206 transitions. Word has length 152 [2023-12-22 02:44:42,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:42,187 INFO L495 AbstractCegarLoop]: Abstraction has 28875 states and 37206 transitions. [2023-12-22 02:44:42,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:42,187 INFO L276 IsEmpty]: Start isEmpty. Operand 28875 states and 37206 transitions. [2023-12-22 02:44:42,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:44:42,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:42,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:42,204 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 02:44:42,395 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 02:44:42,395 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:42,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:42,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1951050232, now seen corresponding path program 1 times [2023-12-22 02:44:42,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:42,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [26135813] [2023-12-22 02:44:42,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:42,396 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 02:44:42,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:42,397 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 02:44:42,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2023-12-22 02:44:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:42,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:42,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:42,538 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 02:44:42,538 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:42,539 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:42,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [26135813] [2023-12-22 02:44:42,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [26135813] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:42,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:42,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:42,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793636394] [2023-12-22 02:44:42,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:42,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:42,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:42,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:42,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:42,540 INFO L87 Difference]: Start difference. First operand 28875 states and 37206 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:45,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:45,967 INFO L93 Difference]: Finished difference Result 31318 states and 40436 transitions. [2023-12-22 02:44:45,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:45,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:44:45,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:46,032 INFO L225 Difference]: With dead ends: 31318 [2023-12-22 02:44:46,033 INFO L226 Difference]: Without dead ends: 28967 [2023-12-22 02:44:46,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:46,045 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 65 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:46,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1696 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:46,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28967 states. [2023-12-22 02:44:49,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28967 to 28879. [2023-12-22 02:44:49,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28879 states, 22797 states have (on average 1.269421415098478) internal successors, (28939), 23330 states have internal predecessors, (28939), 2911 states have call successors, (2911), 2010 states have call predecessors, (2911), 3169 states have return successors, (5338), 3539 states have call predecessors, (5338), 2907 states have call successors, (5338) [2023-12-22 02:44:49,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28879 states to 28879 states and 37188 transitions. [2023-12-22 02:44:49,708 INFO L78 Accepts]: Start accepts. Automaton has 28879 states and 37188 transitions. Word has length 152 [2023-12-22 02:44:49,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:49,709 INFO L495 AbstractCegarLoop]: Abstraction has 28879 states and 37188 transitions. [2023-12-22 02:44:49,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:49,709 INFO L276 IsEmpty]: Start isEmpty. Operand 28879 states and 37188 transitions. [2023-12-22 02:44:49,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:44:49,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:49,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:49,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2023-12-22 02:44:49,915 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 02:44:49,916 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:49,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:49,916 INFO L85 PathProgramCache]: Analyzing trace with hash 893212154, now seen corresponding path program 1 times [2023-12-22 02:44:49,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:49,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [585419651] [2023-12-22 02:44:49,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:49,917 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 02:44:49,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:49,918 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 02:44:49,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2023-12-22 02:44:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:50,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:44:50,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:50,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:44:50,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:50,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:50,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [585419651] [2023-12-22 02:44:50,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [585419651] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:50,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:50,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:44:50,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056318279] [2023-12-22 02:44:50,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:50,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:44:50,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:50,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:44:50,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:44:50,132 INFO L87 Difference]: Start difference. First operand 28879 states and 37188 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:53,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:53,672 INFO L93 Difference]: Finished difference Result 33404 states and 43056 transitions. [2023-12-22 02:44:53,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:44:53,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:44:53,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:53,745 INFO L225 Difference]: With dead ends: 33404 [2023-12-22 02:44:53,745 INFO L226 Difference]: Without dead ends: 31049 [2023-12-22 02:44:53,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:44:53,761 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 531 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:53,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 1021 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:53,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31049 states. [2023-12-22 02:44:57,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31049 to 31043. [2023-12-22 02:44:57,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31043 states, 24849 states have (on average 1.2706748762525655) internal successors, (31575), 25383 states have internal predecessors, (31575), 2970 states have call successors, (2970), 2062 states have call predecessors, (2970), 3222 states have return successors, (5398), 3598 states have call predecessors, (5398), 2966 states have call successors, (5398) [2023-12-22 02:44:57,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31043 states to 31043 states and 39943 transitions. [2023-12-22 02:44:57,597 INFO L78 Accepts]: Start accepts. Automaton has 31043 states and 39943 transitions. Word has length 152 [2023-12-22 02:44:57,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:57,597 INFO L495 AbstractCegarLoop]: Abstraction has 31043 states and 39943 transitions. [2023-12-22 02:44:57,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:44:57,598 INFO L276 IsEmpty]: Start isEmpty. Operand 31043 states and 39943 transitions. [2023-12-22 02:44:57,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:44:57,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:57,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:57,606 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 02:44:57,804 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 02:44:57,804 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:57,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:57,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1734635559, now seen corresponding path program 1 times [2023-12-22 02:44:57,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:57,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681569347] [2023-12-22 02:44:57,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:57,805 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 02:44:57,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:57,806 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 02:44:57,811 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 02:44:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:57,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:57,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:57,945 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 02:44:57,945 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:57,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:57,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681569347] [2023-12-22 02:44:57,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681569347] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:57,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:57,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:57,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696176521] [2023-12-22 02:44:57,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:57,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:57,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:57,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:57,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:57,946 INFO L87 Difference]: Start difference. First operand 31043 states and 39943 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:45:01,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:45:01,539 INFO L93 Difference]: Finished difference Result 36378 states and 46926 transitions. [2023-12-22 02:45:01,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:45:01,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:45:01,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:45:01,607 INFO L225 Difference]: With dead ends: 36378 [2023-12-22 02:45:01,607 INFO L226 Difference]: Without dead ends: 31859 [2023-12-22 02:45:01,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:45:01,623 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 47 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:45:01,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1710 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:45:01,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31859 states. [2023-12-22 02:45:06,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31859 to 31091. [2023-12-22 02:45:06,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31091 states, 24897 states have (on average 1.2692693898863316) internal successors, (31601), 25431 states have internal predecessors, (31601), 2970 states have call successors, (2970), 2062 states have call predecessors, (2970), 3222 states have return successors, (5398), 3598 states have call predecessors, (5398), 2966 states have call successors, (5398) [2023-12-22 02:45:06,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31091 states to 31091 states and 39969 transitions. [2023-12-22 02:45:06,410 INFO L78 Accepts]: Start accepts. Automaton has 31091 states and 39969 transitions. Word has length 152 [2023-12-22 02:45:06,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:45:06,411 INFO L495 AbstractCegarLoop]: Abstraction has 31091 states and 39969 transitions. [2023-12-22 02:45:06,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:45:06,411 INFO L276 IsEmpty]: Start isEmpty. Operand 31091 states and 39969 transitions. [2023-12-22 02:45:06,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:45:06,413 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:45:06,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:45:06,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2023-12-22 02:45:06,618 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 02:45:06,618 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:45:06,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:45:06,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1592981083, now seen corresponding path program 1 times [2023-12-22 02:45:06,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:45:06,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [170783534] [2023-12-22 02:45:06,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:45:06,619 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 02:45:06,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:45:06,621 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 02:45:06,622 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 02:45:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:45:06,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:45:06,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:45:06,769 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 02:45:06,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:45:06,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:45:06,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [170783534] [2023-12-22 02:45:06,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [170783534] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:45:06,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:45:06,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:45:06,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233686816] [2023-12-22 02:45:06,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:45:06,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:45:06,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:45:06,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:45:06,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:45:06,771 INFO L87 Difference]: Start difference. First operand 31091 states and 39969 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:45:10,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:45:10,481 INFO L93 Difference]: Finished difference Result 35714 states and 45959 transitions. [2023-12-22 02:45:10,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:45:10,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:45:10,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:45:10,549 INFO L225 Difference]: With dead ends: 35714 [2023-12-22 02:45:10,549 INFO L226 Difference]: Without dead ends: 31147 [2023-12-22 02:45:10,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:45:10,563 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 38 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:45:10,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1698 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:45:10,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31147 states. [2023-12-22 02:45:14,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31147 to 31095. [2023-12-22 02:45:14,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31095 states, 24901 states have (on average 1.2674591381872213) internal successors, (31561), 25435 states have internal predecessors, (31561), 2970 states have call successors, (2970), 2062 states have call predecessors, (2970), 3222 states have return successors, (5398), 3598 states have call predecessors, (5398), 2966 states have call successors, (5398) [2023-12-22 02:45:14,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31095 states to 31095 states and 39929 transitions. [2023-12-22 02:45:14,410 INFO L78 Accepts]: Start accepts. Automaton has 31095 states and 39929 transitions. Word has length 152 [2023-12-22 02:45:14,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:45:14,411 INFO L495 AbstractCegarLoop]: Abstraction has 31095 states and 39929 transitions. [2023-12-22 02:45:14,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:45:14,411 INFO L276 IsEmpty]: Start isEmpty. Operand 31095 states and 39929 transitions. [2023-12-22 02:45:14,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:45:14,413 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:45:14,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:45:14,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2023-12-22 02:45:14,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:45:14,620 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:45:14,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:45:14,620 INFO L85 PathProgramCache]: Analyzing trace with hash 861013657, now seen corresponding path program 1 times [2023-12-22 02:45:14,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:45:14,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586249059] [2023-12-22 02:45:14,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:45:14,621 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 02:45:14,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:45:14,622 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:45:14,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2023-12-22 02:45:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:45:14,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:45:14,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:45:14,742 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 02:45:14,742 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:45:14,742 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:45:14,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586249059] [2023-12-22 02:45:14,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1586249059] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:45:14,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:45:14,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:45:14,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788859673] [2023-12-22 02:45:14,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:45:14,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:45:14,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:45:14,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:45:14,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:45:14,743 INFO L87 Difference]: Start difference. First operand 31095 states and 39929 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:45:18,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:45:18,222 INFO L93 Difference]: Finished difference Result 35754 states and 45921 transitions. [2023-12-22 02:45:18,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:45:18,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:45:18,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:45:18,290 INFO L225 Difference]: With dead ends: 35754 [2023-12-22 02:45:18,290 INFO L226 Difference]: Without dead ends: 31183 [2023-12-22 02:45:18,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:45:18,306 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 29 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:45:18,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1699 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:45:18,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31183 states. [2023-12-22 02:45:22,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31183 to 31103. [2023-12-22 02:45:22,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31103 states, 24909 states have (on average 1.2656871010478141) internal successors, (31527), 25443 states have internal predecessors, (31527), 2970 states have call successors, (2970), 2062 states have call predecessors, (2970), 3222 states have return successors, (5398), 3598 states have call predecessors, (5398), 2966 states have call successors, (5398) [2023-12-22 02:45:22,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31103 states to 31103 states and 39895 transitions. [2023-12-22 02:45:22,112 INFO L78 Accepts]: Start accepts. Automaton has 31103 states and 39895 transitions. Word has length 152 [2023-12-22 02:45:22,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:45:22,113 INFO L495 AbstractCegarLoop]: Abstraction has 31103 states and 39895 transitions. [2023-12-22 02:45:22,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:45:22,113 INFO L276 IsEmpty]: Start isEmpty. Operand 31103 states and 39895 transitions. [2023-12-22 02:45:22,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:45:22,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:45:22,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:45:22,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2023-12-22 02:45:22,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:45:22,319 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:45:22,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:45:22,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1472378981, now seen corresponding path program 1 times [2023-12-22 02:45:22,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:45:22,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452462153] [2023-12-22 02:45:22,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:45:22,320 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 02:45:22,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:45:22,321 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:45:22,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2023-12-22 02:45:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:45:22,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:45:22,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:45:22,459 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 02:45:22,459 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:45:22,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:45:22,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1452462153] [2023-12-22 02:45:22,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1452462153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:45:22,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:45:22,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:45:22,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520020154] [2023-12-22 02:45:22,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:45:22,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:45:22,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:45:22,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:45:22,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:45:22,461 INFO L87 Difference]: Start difference. First operand 31103 states and 39895 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:45:25,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:45:25,998 INFO L93 Difference]: Finished difference Result 35746 states and 45821 transitions. [2023-12-22 02:45:25,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:45:25,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:45:25,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:45:26,065 INFO L225 Difference]: With dead ends: 35746 [2023-12-22 02:45:26,065 INFO L226 Difference]: Without dead ends: 31167 [2023-12-22 02:45:26,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:45:26,081 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 20 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:45:26,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1700 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:45:26,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31167 states. [2023-12-22 02:45:29,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31167 to 31111. [2023-12-22 02:45:29,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31111 states, 24917 states have (on average 1.2639162017899426) internal successors, (31493), 25451 states have internal predecessors, (31493), 2970 states have call successors, (2970), 2062 states have call predecessors, (2970), 3222 states have return successors, (5398), 3598 states have call predecessors, (5398), 2966 states have call successors, (5398) [2023-12-22 02:45:29,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31111 states to 31111 states and 39861 transitions. [2023-12-22 02:45:29,872 INFO L78 Accepts]: Start accepts. Automaton has 31111 states and 39861 transitions. Word has length 152 [2023-12-22 02:45:29,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:45:29,872 INFO L495 AbstractCegarLoop]: Abstraction has 31111 states and 39861 transitions. [2023-12-22 02:45:29,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:45:29,873 INFO L276 IsEmpty]: Start isEmpty. Operand 31111 states and 39861 transitions. [2023-12-22 02:45:29,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:45:29,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:45:29,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:45:29,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2023-12-22 02:45:30,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:45:30,080 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:45:30,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:45:30,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1431704231, now seen corresponding path program 1 times [2023-12-22 02:45:30,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:45:30,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395477934] [2023-12-22 02:45:30,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:45:30,081 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 02:45:30,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:45:30,082 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:45:30,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2023-12-22 02:45:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:45:30,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:45:30,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:45:30,210 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 02:45:30,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:45:30,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:45:30,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395477934] [2023-12-22 02:45:30,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1395477934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:45:30,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:45:30,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:45:30,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659817878] [2023-12-22 02:45:30,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:45:30,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:45:30,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:45:30,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:45:30,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:45:30,212 INFO L87 Difference]: Start difference. First operand 31111 states and 39861 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:45:33,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:45:33,733 INFO L93 Difference]: Finished difference Result 35738 states and 45721 transitions. [2023-12-22 02:45:33,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:45:33,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:45:33,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:45:33,793 INFO L225 Difference]: With dead ends: 35738 [2023-12-22 02:45:33,793 INFO L226 Difference]: Without dead ends: 31151 [2023-12-22 02:45:33,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:45:33,805 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 11 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:45:33,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1701 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:45:33,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31151 states. [2023-12-22 02:45:37,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31151 to 31119. [2023-12-22 02:45:37,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31119 states, 24925 states have (on average 1.2621464393179538) internal successors, (31459), 25459 states have internal predecessors, (31459), 2970 states have call successors, (2970), 2062 states have call predecessors, (2970), 3222 states have return successors, (5398), 3598 states have call predecessors, (5398), 2966 states have call successors, (5398) [2023-12-22 02:45:37,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31119 states to 31119 states and 39827 transitions. [2023-12-22 02:45:37,558 INFO L78 Accepts]: Start accepts. Automaton has 31119 states and 39827 transitions. Word has length 152 [2023-12-22 02:45:37,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:45:37,558 INFO L495 AbstractCegarLoop]: Abstraction has 31119 states and 39827 transitions. [2023-12-22 02:45:37,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:45:37,558 INFO L276 IsEmpty]: Start isEmpty. Operand 31119 states and 39827 transitions. [2023-12-22 02:45:37,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:45:37,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:45:37,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:45:37,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2023-12-22 02:45:37,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:45:37,765 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:45:37,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:45:37,766 INFO L85 PathProgramCache]: Analyzing trace with hash 834676955, now seen corresponding path program 1 times [2023-12-22 02:45:37,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:45:37,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703800544] [2023-12-22 02:45:37,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:45:37,766 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 02:45:37,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:45:37,767 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:45:37,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2023-12-22 02:45:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:45:37,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:45:37,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:45:37,916 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 02:45:37,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:45:37,917 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:45:37,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703800544] [2023-12-22 02:45:37,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [703800544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:45:37,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:45:37,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:45:37,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789074783] [2023-12-22 02:45:37,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:45:37,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:45:37,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:45:37,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:45:37,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:45:37,918 INFO L87 Difference]: Start difference. First operand 31119 states and 39827 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:45:41,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:45:41,506 INFO L93 Difference]: Finished difference Result 35730 states and 45621 transitions. [2023-12-22 02:45:41,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:45:41,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:45:41,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:45:41,578 INFO L225 Difference]: With dead ends: 35730 [2023-12-22 02:45:41,578 INFO L226 Difference]: Without dead ends: 31135 [2023-12-22 02:45:41,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:45:41,595 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 2 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:45:41,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1702 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:45:41,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31135 states. [2023-12-22 02:45:45,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31135 to 31127. [2023-12-22 02:45:45,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31127 states, 24933 states have (on average 1.2603778125376008) internal successors, (31425), 25467 states have internal predecessors, (31425), 2970 states have call successors, (2970), 2062 states have call predecessors, (2970), 3222 states have return successors, (5398), 3598 states have call predecessors, (5398), 2966 states have call successors, (5398) [2023-12-22 02:45:45,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31127 states to 31127 states and 39793 transitions. [2023-12-22 02:45:45,418 INFO L78 Accepts]: Start accepts. Automaton has 31127 states and 39793 transitions. Word has length 152 [2023-12-22 02:45:45,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:45:45,419 INFO L495 AbstractCegarLoop]: Abstraction has 31127 states and 39793 transitions. [2023-12-22 02:45:45,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:45:45,419 INFO L276 IsEmpty]: Start isEmpty. Operand 31127 states and 39793 transitions. [2023-12-22 02:45:45,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:45:45,421 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:45:45,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:45:45,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2023-12-22 02:45:45,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:45:45,628 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:45:45,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:45:45,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1532017639, now seen corresponding path program 1 times [2023-12-22 02:45:45,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:45:45,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243973704] [2023-12-22 02:45:45,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:45:45,629 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 02:45:45,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:45:45,630 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:45:45,631 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 (51)] Waiting until timeout for monitored process [2023-12-22 02:45:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:45:45,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:45:45,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:45:45,892 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 02:45:45,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:45:45,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:45:45,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243973704] [2023-12-22 02:45:45,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243973704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:45:45,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:45:45,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:45:45,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027788959] [2023-12-22 02:45:45,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:45:45,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:45:45,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:45:45,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:45:45,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:45:45,894 INFO L87 Difference]: Start difference. First operand 31127 states and 39793 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:45:50,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:45:50,161 INFO L93 Difference]: Finished difference Result 35731 states and 45448 transitions. [2023-12-22 02:45:50,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:45:50,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:45:50,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:45:50,226 INFO L225 Difference]: With dead ends: 35731 [2023-12-22 02:45:50,226 INFO L226 Difference]: Without dead ends: 31127 [2023-12-22 02:45:50,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:45:50,240 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 718 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:45:50,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 904 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:45:50,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31127 states. [2023-12-22 02:45:54,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31127 to 31127. [2023-12-22 02:45:54,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31127 states, 24933 states have (on average 1.2598163077046485) internal successors, (31411), 25467 states have internal predecessors, (31411), 2970 states have call successors, (2970), 2062 states have call predecessors, (2970), 3222 states have return successors, (5398), 3598 states have call predecessors, (5398), 2966 states have call successors, (5398) [2023-12-22 02:45:54,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31127 states to 31127 states and 39779 transitions. [2023-12-22 02:45:54,399 INFO L78 Accepts]: Start accepts. Automaton has 31127 states and 39779 transitions. Word has length 152 [2023-12-22 02:45:54,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:45:54,400 INFO L495 AbstractCegarLoop]: Abstraction has 31127 states and 39779 transitions. [2023-12-22 02:45:54,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:45:54,400 INFO L276 IsEmpty]: Start isEmpty. Operand 31127 states and 39779 transitions. [2023-12-22 02:45:54,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:45:54,402 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:45:54,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:45:54,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Ended with exit code 0 [2023-12-22 02:45:54,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:45:54,607 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:45:54,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:45:54,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1391142359, now seen corresponding path program 1 times [2023-12-22 02:45:54,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:45:54,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641804983] [2023-12-22 02:45:54,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:45:54,608 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:45:54,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:45:54,609 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:45:54,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2023-12-22 02:45:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:45:54,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:45:54,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:45:54,860 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 02:45:54,861 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:45:54,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:45:54,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641804983] [2023-12-22 02:45:54,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641804983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:45:54,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:45:54,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:45:54,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429752407] [2023-12-22 02:45:54,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:45:54,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:45:54,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:45:54,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:45:54,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:45:54,862 INFO L87 Difference]: Start difference. First operand 31127 states and 39779 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:45:59,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:45:59,014 INFO L93 Difference]: Finished difference Result 35731 states and 45420 transitions. [2023-12-22 02:45:59,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:45:59,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:45:59,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:45:59,076 INFO L225 Difference]: With dead ends: 35731 [2023-12-22 02:45:59,076 INFO L226 Difference]: Without dead ends: 31127 [2023-12-22 02:45:59,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:45:59,088 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 705 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:45:59,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 897 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:45:59,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31127 states. [2023-12-22 02:46:03,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31127 to 31127. [2023-12-22 02:46:03,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31127 states, 24933 states have (on average 1.259254802871696) internal successors, (31397), 25467 states have internal predecessors, (31397), 2970 states have call successors, (2970), 2062 states have call predecessors, (2970), 3222 states have return successors, (5398), 3598 states have call predecessors, (5398), 2966 states have call successors, (5398) [2023-12-22 02:46:03,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31127 states to 31127 states and 39765 transitions. [2023-12-22 02:46:03,112 INFO L78 Accepts]: Start accepts. Automaton has 31127 states and 39765 transitions. Word has length 152 [2023-12-22 02:46:03,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:46:03,113 INFO L495 AbstractCegarLoop]: Abstraction has 31127 states and 39765 transitions. [2023-12-22 02:46:03,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:46:03,113 INFO L276 IsEmpty]: Start isEmpty. Operand 31127 states and 39765 transitions. [2023-12-22 02:46:03,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:46:03,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:46:03,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:46:03,120 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 (52)] Ended with exit code 0 [2023-12-22 02:46:03,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:46:03,320 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:46:03,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:46:03,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1665901973, now seen corresponding path program 1 times [2023-12-22 02:46:03,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:46:03,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108931220] [2023-12-22 02:46:03,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:46:03,321 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 02:46:03,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:46:03,322 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:46:03,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2023-12-22 02:46:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:46:03,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:46:03,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:46:03,616 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 02:46:03,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:46:03,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:46:03,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108931220] [2023-12-22 02:46:03,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108931220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:46:03,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:46:03,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:46:03,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469071565] [2023-12-22 02:46:03,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:46:03,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:46:03,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:46:03,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:46:03,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:46:03,618 INFO L87 Difference]: Start difference. First operand 31127 states and 39765 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:46:08,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:46:08,291 INFO L93 Difference]: Finished difference Result 36049 states and 45793 transitions. [2023-12-22 02:46:08,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:46:08,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 152 [2023-12-22 02:46:08,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:46:08,359 INFO L225 Difference]: With dead ends: 36049 [2023-12-22 02:46:08,359 INFO L226 Difference]: Without dead ends: 31445 [2023-12-22 02:46:08,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-22 02:46:08,374 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 815 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:46:08,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 892 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:46:08,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31445 states. [2023-12-22 02:46:13,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31445 to 31377. [2023-12-22 02:46:13,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31377 states, 25179 states have (on average 1.2564041463124032) internal successors, (31635), 25713 states have internal predecessors, (31635), 2970 states have call successors, (2970), 2066 states have call predecessors, (2970), 3226 states have return successors, (5398), 3598 states have call predecessors, (5398), 2966 states have call successors, (5398) [2023-12-22 02:46:13,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31377 states to 31377 states and 40003 transitions. [2023-12-22 02:46:13,298 INFO L78 Accepts]: Start accepts. Automaton has 31377 states and 40003 transitions. Word has length 152 [2023-12-22 02:46:13,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:46:13,299 INFO L495 AbstractCegarLoop]: Abstraction has 31377 states and 40003 transitions. [2023-12-22 02:46:13,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-22 02:46:13,299 INFO L276 IsEmpty]: Start isEmpty. Operand 31377 states and 40003 transitions. [2023-12-22 02:46:13,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 02:46:13,308 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:46:13,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:46:13,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2023-12-22 02:46:13,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:46:13,514 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:46:13,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:46:13,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1531888467, now seen corresponding path program 1 times [2023-12-22 02:46:13,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:46:13,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637051680] [2023-12-22 02:46:13,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:46:13,515 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 02:46:13,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:46:13,517 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:46:13,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2023-12-22 02:46:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:46:13,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:46:13,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:46:13,797 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 02:46:13,797 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:46:13,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:46:13,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637051680] [2023-12-22 02:46:13,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637051680] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:46:13,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:46:13,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:46:13,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904349102] [2023-12-22 02:46:13,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:46:13,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:46:13,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:46:13,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:46:13,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:46:13,798 INFO L87 Difference]: Start difference. First operand 31377 states and 40003 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-22 02:46:17,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:46:17,972 INFO L93 Difference]: Finished difference Result 40988 states and 51673 transitions. [2023-12-22 02:46:17,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:46:17,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 152 [2023-12-22 02:46:17,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:46:18,040 INFO L225 Difference]: With dead ends: 40988 [2023-12-22 02:46:18,040 INFO L226 Difference]: Without dead ends: 36135 [2023-12-22 02:46:18,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:46:18,054 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 441 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:46:18,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 946 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:46:18,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36135 states. [2023-12-22 02:46:22,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36135 to 36131. [2023-12-22 02:46:22,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36131 states, 29697 states have (on average 1.2476344411893456) internal successors, (37051), 30237 states have internal predecessors, (37051), 3092 states have call successors, (3092), 2178 states have call predecessors, (3092), 3340 states have return successors, (5522), 3716 states have call predecessors, (5522), 3088 states have call successors, (5522) [2023-12-22 02:46:22,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36131 states to 36131 states and 45665 transitions. [2023-12-22 02:46:22,562 INFO L78 Accepts]: Start accepts. Automaton has 36131 states and 45665 transitions. Word has length 152 [2023-12-22 02:46:22,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:46:22,562 INFO L495 AbstractCegarLoop]: Abstraction has 36131 states and 45665 transitions. [2023-12-22 02:46:22,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-22 02:46:22,563 INFO L276 IsEmpty]: Start isEmpty. Operand 36131 states and 45665 transitions. [2023-12-22 02:46:22,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:46:22,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:46:22,565 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 02:46:22,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2023-12-22 02:46:22,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:46:22,770 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:46:22,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:46:22,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1623911508, now seen corresponding path program 1 times [2023-12-22 02:46:22,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:46:22,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407314905] [2023-12-22 02:46:22,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:46:22,771 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 02:46:22,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:46:22,772 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:46:22,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2023-12-22 02:46:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:46:22,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:46:22,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:46:22,953 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 02:46:22,953 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:46:22,953 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:46:22,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407314905] [2023-12-22 02:46:22,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407314905] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:46:22,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:46:22,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:46:22,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670964739] [2023-12-22 02:46:22,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:46:22,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:46:22,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:46:22,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:46:22,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:46:22,954 INFO L87 Difference]: Start difference. First operand 36131 states and 45665 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 02:46:27,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:46:27,315 INFO L93 Difference]: Finished difference Result 53683 states and 69329 transitions. [2023-12-22 02:46:27,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:46:27,315 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 02:46:27,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:46:27,329 INFO L225 Difference]: With dead ends: 53683 [2023-12-22 02:46:27,329 INFO L226 Difference]: Without dead ends: 9626 [2023-12-22 02:46:27,371 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 02:46:27,372 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 82 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:46:27,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1191 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:46:27,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9626 states. [2023-12-22 02:46:27,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9626 to 9626. [2023-12-22 02:46:27,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9626 states, 9147 states have (on average 1.2073904012244452) internal successors, (11044), 9157 states have internal predecessors, (11044), 250 states have call successors, (250), 225 states have call predecessors, (250), 228 states have return successors, (252), 244 states have call predecessors, (252), 248 states have call successors, (252) [2023-12-22 02:46:27,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9626 states to 9626 states and 11546 transitions. [2023-12-22 02:46:27,846 INFO L78 Accepts]: Start accepts. Automaton has 9626 states and 11546 transitions. Word has length 171 [2023-12-22 02:46:27,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:46:27,846 INFO L495 AbstractCegarLoop]: Abstraction has 9626 states and 11546 transitions. [2023-12-22 02:46:27,846 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 02:46:27,846 INFO L276 IsEmpty]: Start isEmpty. Operand 9626 states and 11546 transitions. [2023-12-22 02:46:27,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-22 02:46:27,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:46:27,850 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:46:27,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2023-12-22 02:46:28,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:46:28,054 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:46:28,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:46:28,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1187016846, now seen corresponding path program 1 times [2023-12-22 02:46:28,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:46:28,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207943235] [2023-12-22 02:46:28,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:46:28,055 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 02:46:28,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:46:28,056 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:46:28,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2023-12-22 02:46:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:46:28,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:46:28,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:46:28,372 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-22 02:46:28,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:46:28,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:46:28,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207943235] [2023-12-22 02:46:28,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207943235] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:46:28,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:46:28,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:46:28,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900481369] [2023-12-22 02:46:28,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:46:28,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:46:28,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:46:28,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:46:28,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:46:28,374 INFO L87 Difference]: Start difference. First operand 9626 states and 11546 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 2 states have internal predecessors, (221), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:46:29,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:46:29,080 INFO L93 Difference]: Finished difference Result 28075 states and 33851 transitions. [2023-12-22 02:46:29,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:46:29,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 2 states have internal predecessors, (221), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 244 [2023-12-22 02:46:29,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:46:29,108 INFO L225 Difference]: With dead ends: 28075 [2023-12-22 02:46:29,109 INFO L226 Difference]: Without dead ends: 18468 [2023-12-22 02:46:29,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:46:29,126 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 303 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:46:29,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 864 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:46:29,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18468 states. [2023-12-22 02:46:29,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18468 to 18456. [2023-12-22 02:46:29,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18456 states, 17537 states have (on average 1.202258082910418) internal successors, (21084), 17555 states have internal predecessors, (21084), 478 states have call successors, (478), 433 states have call predecessors, (478), 440 states have return successors, (484), 468 states have call predecessors, (484), 476 states have call successors, (484) [2023-12-22 02:46:29,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18456 states to 18456 states and 22046 transitions. [2023-12-22 02:46:29,825 INFO L78 Accepts]: Start accepts. Automaton has 18456 states and 22046 transitions. Word has length 244 [2023-12-22 02:46:29,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:46:29,826 INFO L495 AbstractCegarLoop]: Abstraction has 18456 states and 22046 transitions. [2023-12-22 02:46:29,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 2 states have internal predecessors, (221), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-22 02:46:29,826 INFO L276 IsEmpty]: Start isEmpty. Operand 18456 states and 22046 transitions. [2023-12-22 02:46:29,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-22 02:46:29,831 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:46:29,831 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:46:29,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2023-12-22 02:46:30,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:46:30,038 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:46:30,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:46:30,039 INFO L85 PathProgramCache]: Analyzing trace with hash 2117613005, now seen corresponding path program 1 times [2023-12-22 02:46:30,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:46:30,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610800775] [2023-12-22 02:46:30,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:46:30,039 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 02:46:30,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:46:30,040 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:46:30,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2023-12-22 02:46:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:46:30,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:46:30,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:46:30,388 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-22 02:46:30,388 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:46:30,388 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:46:30,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [610800775] [2023-12-22 02:46:30,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [610800775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:46:30,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:46:30,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:46:30,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609149987] [2023-12-22 02:46:30,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:46:30,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:46:30,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:46:30,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:46:30,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:46:30,390 INFO L87 Difference]: Start difference. First operand 18456 states and 22046 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:46:32,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:46:32,191 INFO L93 Difference]: Finished difference Result 54986 states and 65614 transitions. [2023-12-22 02:46:32,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:46:32,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 244 [2023-12-22 02:46:32,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:46:32,254 INFO L225 Difference]: With dead ends: 54986 [2023-12-22 02:46:32,255 INFO L226 Difference]: Without dead ends: 36550 [2023-12-22 02:46:32,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:46:32,281 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 606 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:46:32,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 1254 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:46:32,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36550 states. [2023-12-22 02:46:33,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36550 to 36546. [2023-12-22 02:46:33,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36546 states, 34728 states have (on average 1.196959225984796) internal successors, (41568), 34771 states have internal predecessors, (41568), 937 states have call successors, (937), 849 states have call predecessors, (937), 880 states have return successors, (1015), 927 states have call predecessors, (1015), 935 states have call successors, (1015) [2023-12-22 02:46:33,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36546 states to 36546 states and 43520 transitions. [2023-12-22 02:46:33,908 INFO L78 Accepts]: Start accepts. Automaton has 36546 states and 43520 transitions. Word has length 244 [2023-12-22 02:46:33,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:46:33,909 INFO L495 AbstractCegarLoop]: Abstraction has 36546 states and 43520 transitions. [2023-12-22 02:46:33,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:46:33,909 INFO L276 IsEmpty]: Start isEmpty. Operand 36546 states and 43520 transitions. [2023-12-22 02:46:33,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-22 02:46:33,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:46:33,948 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:46:33,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2023-12-22 02:46:34,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:46:34,154 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:46:34,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:46:34,154 INFO L85 PathProgramCache]: Analyzing trace with hash -880899377, now seen corresponding path program 1 times [2023-12-22 02:46:34,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:46:34,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792723020] [2023-12-22 02:46:34,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:46:34,155 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 02:46:34,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:46:34,156 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:46:34,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2023-12-22 02:46:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:46:34,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:46:34,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:46:34,326 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-22 02:46:34,326 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:46:34,326 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:46:34,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792723020] [2023-12-22 02:46:34,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [792723020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:46:34,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:46:34,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:46:34,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619609332] [2023-12-22 02:46:34,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:46:34,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:46:34,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:46:34,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:46:34,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:46:34,328 INFO L87 Difference]: Start difference. First operand 36546 states and 43520 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 02:46:35,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:46:35,355 INFO L93 Difference]: Finished difference Result 64252 states and 76487 transitions. [2023-12-22 02:46:35,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:46:35,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 244 [2023-12-22 02:46:35,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:46:35,405 INFO L225 Difference]: With dead ends: 64252 [2023-12-22 02:46:35,405 INFO L226 Difference]: Without dead ends: 27726 [2023-12-22 02:46:35,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:46:35,444 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 460 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:46:35,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 425 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:46:35,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27726 states. [2023-12-22 02:46:37,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27726 to 27726. [2023-12-22 02:46:37,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27726 states, 26351 states have (on average 1.1968805737922659) internal successors, (31539), 26385 states have internal predecessors, (31539), 706 states have call successors, (706), 641 states have call predecessors, (706), 668 states have return successors, (756), 700 states have call predecessors, (756), 704 states have call successors, (756) [2023-12-22 02:46:37,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27726 states to 27726 states and 33001 transitions. [2023-12-22 02:46:37,130 INFO L78 Accepts]: Start accepts. Automaton has 27726 states and 33001 transitions. Word has length 244 [2023-12-22 02:46:37,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:46:37,130 INFO L495 AbstractCegarLoop]: Abstraction has 27726 states and 33001 transitions. [2023-12-22 02:46:37,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 02:46:37,133 INFO L276 IsEmpty]: Start isEmpty. Operand 27726 states and 33001 transitions. [2023-12-22 02:46:37,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-22 02:46:37,142 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:46:37,142 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:46:37,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2023-12-22 02:46:37,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:46:37,348 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:46:37,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:46:37,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2119563698, now seen corresponding path program 1 times [2023-12-22 02:46:37,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:46:37,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595834712] [2023-12-22 02:46:37,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:46:37,349 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 02:46:37,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:46:37,350 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:46:37,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2023-12-22 02:46:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:46:37,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:46:37,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:46:37,725 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-22 02:46:37,725 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:46:37,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:46:37,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595834712] [2023-12-22 02:46:37,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595834712] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:46:37,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:46:37,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:46:37,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418181201] [2023-12-22 02:46:37,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:46:37,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:46:37,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:46:37,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:46:37,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:46:37,727 INFO L87 Difference]: Start difference. First operand 27726 states and 33001 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:46:40,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:46:40,468 INFO L93 Difference]: Finished difference Result 81507 states and 96967 transitions. [2023-12-22 02:46:40,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:46:40,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 246 [2023-12-22 02:46:40,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:46:40,555 INFO L225 Difference]: With dead ends: 81507 [2023-12-22 02:46:40,555 INFO L226 Difference]: Without dead ends: 53801 [2023-12-22 02:46:40,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:46:40,576 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 597 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:46:40,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 1232 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:46:40,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53801 states. [2023-12-22 02:46:43,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53801 to 53797. [2023-12-22 02:46:43,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53797 states, 51131 states have (on average 1.1945199585378734) internal successors, (61077), 51206 states have internal predecessors, (61077), 1361 states have call successors, (1361), 1233 states have call predecessors, (1361), 1304 states have return successors, (1503), 1359 states have call predecessors, (1503), 1359 states have call successors, (1503) [2023-12-22 02:46:43,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53797 states to 53797 states and 63941 transitions. [2023-12-22 02:46:43,123 INFO L78 Accepts]: Start accepts. Automaton has 53797 states and 63941 transitions. Word has length 246 [2023-12-22 02:46:43,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:46:43,123 INFO L495 AbstractCegarLoop]: Abstraction has 53797 states and 63941 transitions. [2023-12-22 02:46:43,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-22 02:46:43,123 INFO L276 IsEmpty]: Start isEmpty. Operand 53797 states and 63941 transitions. [2023-12-22 02:46:43,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-22 02:46:43,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:46:43,144 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:46:43,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2023-12-22 02:46:43,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:46:43,350 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:46:43,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:46:43,351 INFO L85 PathProgramCache]: Analyzing trace with hash -640006928, now seen corresponding path program 1 times [2023-12-22 02:46:43,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:46:43,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360727766] [2023-12-22 02:46:43,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:46:43,351 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 02:46:43,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:46:43,352 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:46:43,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2023-12-22 02:46:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:46:43,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:46:43,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:46:43,537 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-12-22 02:46:43,538 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:46:43,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:46:43,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360727766] [2023-12-22 02:46:43,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360727766] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:46:43,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:46:43,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:46:43,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011952452] [2023-12-22 02:46:43,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:46:43,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:46:43,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:46:43,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:46:43,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:46:43,540 INFO L87 Difference]: Start difference. First operand 53797 states and 63941 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:46:45,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:46:45,939 INFO L93 Difference]: Finished difference Result 107561 states and 127824 transitions. [2023-12-22 02:46:45,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:46:45,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 246 [2023-12-22 02:46:45,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:46:46,036 INFO L225 Difference]: With dead ends: 107561 [2023-12-22 02:46:46,036 INFO L226 Difference]: Without dead ends: 53784 [2023-12-22 02:46:46,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:46:46,077 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 458 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:46:46,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 424 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:46:46,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53784 states. [2023-12-22 02:46:48,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53784 to 53784. [2023-12-22 02:46:48,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53784 states, 51121 states have (on average 1.1943819565344966) internal successors, (61058), 51195 states have internal predecessors, (61058), 1358 states have call successors, (1358), 1233 states have call predecessors, (1358), 1304 states have return successors, (1500), 1356 states have call predecessors, (1500), 1356 states have call successors, (1500) [2023-12-22 02:46:48,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53784 states to 53784 states and 63916 transitions. [2023-12-22 02:46:48,503 INFO L78 Accepts]: Start accepts. Automaton has 53784 states and 63916 transitions. Word has length 246 [2023-12-22 02:46:48,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:46:48,503 INFO L495 AbstractCegarLoop]: Abstraction has 53784 states and 63916 transitions. [2023-12-22 02:46:48,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:46:48,503 INFO L276 IsEmpty]: Start isEmpty. Operand 53784 states and 63916 transitions. [2023-12-22 02:46:48,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-22 02:46:48,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:46:48,519 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:46:48,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Forceful destruction successful, exit code 0 [2023-12-22 02:46:48,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:46:48,725 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:46:48,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:46:48,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1411337267, now seen corresponding path program 1 times [2023-12-22 02:46:48,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:46:48,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971934177] [2023-12-22 02:46:48,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:46:48,729 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 02:46:48,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:46:48,730 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 02:46:48,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2023-12-22 02:46:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:46:48,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:46:48,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:46:49,104 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-22 02:46:49,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:46:49,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:46:49,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971934177] [2023-12-22 02:46:49,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971934177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:46:49,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:46:49,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:46:49,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167538613] [2023-12-22 02:46:49,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:46:49,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:46:49,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:46:49,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:46:49,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:46:49,106 INFO L87 Difference]: Start difference. First operand 53784 states and 63916 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8)