/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.02.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:12:27,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:12:27,424 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 08:12:27,427 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:12:27,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:12:27,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:12:27,449 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:12:27,450 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:12:27,450 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:12:27,453 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:12:27,453 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:12:27,454 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:12:27,454 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:12:27,455 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:12:27,455 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:12:27,456 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:12:27,456 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:12:27,456 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:12:27,456 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:12:27,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:12:27,457 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:12:27,457 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:12:27,457 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:12:27,457 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:12:27,458 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:12:27,458 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:12:27,458 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:12:27,458 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:12:27,459 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:12:27,459 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:12:27,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:12:27,460 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:12:27,460 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:12:27,460 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:12:27,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:12:27,461 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:12:27,461 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:12:27,461 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:12:27,461 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:12:27,461 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:12:27,461 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:12:27,461 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:12:27,462 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:12:27,462 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:12:27,462 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:12:27,462 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:12:27,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:12:27,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:12:27,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:12:27,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:12:27,682 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:12:27,683 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:12:27,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.02.cil-2.c [2023-12-16 08:12:28,700 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:12:28,852 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:12:28,853 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.02.cil-2.c [2023-12-16 08:12:28,869 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22fde4556/972fcc3c893748c6a7011547de58c12a/FLAG6bcc49452 [2023-12-16 08:12:28,879 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22fde4556/972fcc3c893748c6a7011547de58c12a [2023-12-16 08:12:28,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:12:28,882 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:12:28,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:12:28,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:12:28,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:12:28,890 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:12:28" (1/1) ... [2023-12-16 08:12:28,891 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2501c308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:28, skipping insertion in model container [2023-12-16 08:12:28,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:12:28" (1/1) ... [2023-12-16 08:12:28,934 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:12:29,040 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.02.cil-2.c[911,924] [2023-12-16 08:12:29,080 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.02.cil-2.c[8416,8429] [2023-12-16 08:12:29,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:12:29,119 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:12:29,127 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.02.cil-2.c[911,924] [2023-12-16 08:12:29,147 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.02.cil-2.c[8416,8429] [2023-12-16 08:12:29,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:12:29,192 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:12:29,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29 WrapperNode [2023-12-16 08:12:29,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:12:29,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:12:29,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:12:29,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:12:29,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,212 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,247 INFO L138 Inliner]: procedures = 60, calls = 68, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 491 [2023-12-16 08:12:29,247 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:12:29,248 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:12:29,248 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:12:29,248 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:12:29,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,260 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,272 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]. [2023-12-16 08:12:29,273 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,293 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:12:29,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:12:29,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:12:29,301 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:12:29,309 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:12:29,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:12:29,345 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) [2023-12-16 08:12:29,367 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 [2023-12-16 08:12:29,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:12:29,386 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 08:12:29,387 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 08:12:29,387 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-16 08:12:29,387 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-16 08:12:29,387 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-16 08:12:29,388 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-16 08:12:29,388 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-16 08:12:29,388 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-16 08:12:29,388 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-16 08:12:29,388 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-16 08:12:29,388 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-16 08:12:29,388 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-16 08:12:29,388 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-16 08:12:29,388 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-16 08:12:29,388 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-16 08:12:29,388 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-16 08:12:29,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:12:29,389 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-16 08:12:29,389 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-16 08:12:29,389 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-16 08:12:29,389 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-16 08:12:29,390 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-16 08:12:29,391 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-16 08:12:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-16 08:12:29,391 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-16 08:12:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-16 08:12:29,391 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-16 08:12:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:12:29,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:12:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-16 08:12:29,391 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-16 08:12:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2023-12-16 08:12:29,391 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2023-12-16 08:12:29,479 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:12:29,481 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:12:29,904 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1bv32 == ~q_free~0); [2023-12-16 08:12:29,905 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; [2023-12-16 08:12:29,945 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:12:29,989 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:12:29,989 INFO L309 CfgBuilder]: Removed 9 assume(true) statements. [2023-12-16 08:12:29,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:12:29 BoogieIcfgContainer [2023-12-16 08:12:29,989 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:12:29,991 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:12:29,991 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:12:29,993 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:12:29,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:12:28" (1/3) ... [2023-12-16 08:12:29,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49329535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:12:29, skipping insertion in model container [2023-12-16 08:12:29,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (2/3) ... [2023-12-16 08:12:29,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49329535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:12:29, skipping insertion in model container [2023-12-16 08:12:29,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:12:29" (3/3) ... [2023-12-16 08:12:29,995 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.02.cil-2.c [2023-12-16 08:12:30,006 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:12:30,006 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 08:12:30,041 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:12:30,046 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;@21bb8c9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:12:30,046 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 08:12:30,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 230 states, 178 states have (on average 1.651685393258427) internal successors, (294), 186 states have internal predecessors, (294), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 08:12:30,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 08:12:30,057 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:30,057 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] [2023-12-16 08:12:30,058 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:30,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:30,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1274862750, now seen corresponding path program 1 times [2023-12-16 08:12:30,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:30,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825018359] [2023-12-16 08:12:30,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:30,069 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:30,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:30,071 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) [2023-12-16 08:12:30,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:30,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 08:12:30,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:30,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:30,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:30,286 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:30,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825018359] [2023-12-16 08:12:30,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825018359] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:30,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:30,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 08:12:30,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707640715] [2023-12-16 08:12:30,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:30,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:30,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:30,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:30,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:30,336 INFO L87 Difference]: Start difference. First operand has 230 states, 178 states have (on average 1.651685393258427) internal successors, (294), 186 states have internal predecessors, (294), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:12:31,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:31,003 INFO L93 Difference]: Finished difference Result 552 states and 875 transitions. [2023-12-16 08:12:31,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:12:31,006 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 [2023-12-16 08:12:31,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:31,014 INFO L225 Difference]: With dead ends: 552 [2023-12-16 08:12:31,014 INFO L226 Difference]: Without dead ends: 332 [2023-12-16 08:12:31,033 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 [2023-12-16 08:12:31,035 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 297 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:31,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 753 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:12:31,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-12-16 08:12:31,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 325. [2023-12-16 08:12:31,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 254 states have (on average 1.515748031496063) internal successors, (385), 261 states have internal predecessors, (385), 47 states have call successors, (47), 22 states have call predecessors, (47), 22 states have return successors, (48), 44 states have call predecessors, (48), 43 states have call successors, (48) [2023-12-16 08:12:31,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 480 transitions. [2023-12-16 08:12:31,102 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 480 transitions. Word has length 57 [2023-12-16 08:12:31,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:31,102 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 480 transitions. [2023-12-16 08:12:31,103 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) [2023-12-16 08:12:31,103 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 480 transitions. [2023-12-16 08:12:31,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 08:12:31,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:31,112 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] [2023-12-16 08:12:31,118 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 [2023-12-16 08:12:31,315 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 [2023-12-16 08:12:31,316 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:31,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:31,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1091831844, now seen corresponding path program 1 times [2023-12-16 08:12:31,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:31,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239867025] [2023-12-16 08:12:31,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:31,317 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:31,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:31,320 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) [2023-12-16 08:12:31,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:31,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:31,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:31,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:31,430 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:31,431 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:31,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239867025] [2023-12-16 08:12:31,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239867025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:31,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:31,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:12:31,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921897651] [2023-12-16 08:12:31,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:31,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:31,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:31,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:31,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:31,437 INFO L87 Difference]: Start difference. First operand 325 states and 480 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) [2023-12-16 08:12:31,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:31,525 INFO L93 Difference]: Finished difference Result 685 states and 998 transitions. [2023-12-16 08:12:31,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:31,526 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 [2023-12-16 08:12:31,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:31,535 INFO L225 Difference]: With dead ends: 685 [2023-12-16 08:12:31,535 INFO L226 Difference]: Without dead ends: 497 [2023-12-16 08:12:31,539 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 [2023-12-16 08:12:31,540 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 298 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:31,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 445 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:31,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-12-16 08:12:31,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 491. [2023-12-16 08:12:31,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 384 states have (on average 1.4895833333333333) internal successors, (572), 393 states have internal predecessors, (572), 67 states have call successors, (67), 36 states have call predecessors, (67), 38 states have return successors, (71), 64 states have call predecessors, (71), 63 states have call successors, (71) [2023-12-16 08:12:31,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 710 transitions. [2023-12-16 08:12:31,597 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 710 transitions. Word has length 57 [2023-12-16 08:12:31,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:31,598 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 710 transitions. [2023-12-16 08:12:31,598 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) [2023-12-16 08:12:31,598 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 710 transitions. [2023-12-16 08:12:31,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:12:31,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:31,600 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] [2023-12-16 08:12:31,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:31,803 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 [2023-12-16 08:12:31,806 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:31,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:31,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1007050893, now seen corresponding path program 1 times [2023-12-16 08:12:31,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:31,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575912146] [2023-12-16 08:12:31,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:31,807 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:31,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:31,809 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) [2023-12-16 08:12:31,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:31,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:12:31,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:31,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:31,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:31,894 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:31,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575912146] [2023-12-16 08:12:31,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575912146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:31,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:31,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:12:31,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700522356] [2023-12-16 08:12:31,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:31,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:12:31,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:31,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:12:31,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:31,896 INFO L87 Difference]: Start difference. First operand 491 states and 710 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) [2023-12-16 08:12:31,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:31,995 INFO L93 Difference]: Finished difference Result 863 states and 1245 transitions. [2023-12-16 08:12:31,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:12:31,995 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 [2023-12-16 08:12:31,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:32,000 INFO L225 Difference]: With dead ends: 863 [2023-12-16 08:12:32,000 INFO L226 Difference]: Without dead ends: 509 [2023-12-16 08:12:32,001 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 [2023-12-16 08:12:32,003 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 6 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:32,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1529 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:12:32,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2023-12-16 08:12:32,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 499. [2023-12-16 08:12:32,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 390 states have (on average 1.476923076923077) internal successors, (576), 399 states have internal predecessors, (576), 67 states have call successors, (67), 36 states have call predecessors, (67), 40 states have return successors, (73), 66 states have call predecessors, (73), 63 states have call successors, (73) [2023-12-16 08:12:32,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 716 transitions. [2023-12-16 08:12:32,041 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 716 transitions. Word has length 58 [2023-12-16 08:12:32,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:32,042 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 716 transitions. [2023-12-16 08:12:32,042 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) [2023-12-16 08:12:32,042 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 716 transitions. [2023-12-16 08:12:32,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:12:32,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:32,043 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] [2023-12-16 08:12:32,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:32,251 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 [2023-12-16 08:12:32,252 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:32,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:32,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1079437451, now seen corresponding path program 1 times [2023-12-16 08:12:32,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:32,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387975933] [2023-12-16 08:12:32,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:32,253 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:32,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:32,254 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) [2023-12-16 08:12:32,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:32,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:32,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:32,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:32,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:32,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:32,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387975933] [2023-12-16 08:12:32,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387975933] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:32,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:32,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:12:32,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509806498] [2023-12-16 08:12:32,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:32,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:32,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:32,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:32,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:32,381 INFO L87 Difference]: Start difference. First operand 499 states and 716 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) [2023-12-16 08:12:32,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:32,448 INFO L93 Difference]: Finished difference Result 1193 states and 1688 transitions. [2023-12-16 08:12:32,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:32,448 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 [2023-12-16 08:12:32,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:32,452 INFO L225 Difference]: With dead ends: 1193 [2023-12-16 08:12:32,452 INFO L226 Difference]: Without dead ends: 831 [2023-12-16 08:12:32,453 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 [2023-12-16 08:12:32,453 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 287 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:32,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 421 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:32,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2023-12-16 08:12:32,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 827. [2023-12-16 08:12:32,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 644 states have (on average 1.436335403726708) internal successors, (925), 657 states have internal predecessors, (925), 107 states have call successors, (107), 64 states have call predecessors, (107), 74 states have return successors, (121), 108 states have call predecessors, (121), 103 states have call successors, (121) [2023-12-16 08:12:32,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1153 transitions. [2023-12-16 08:12:32,488 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1153 transitions. Word has length 58 [2023-12-16 08:12:32,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:32,488 INFO L495 AbstractCegarLoop]: Abstraction has 827 states and 1153 transitions. [2023-12-16 08:12:32,488 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) [2023-12-16 08:12:32,488 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1153 transitions. [2023-12-16 08:12:32,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 08:12:32,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:32,489 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] [2023-12-16 08:12:32,494 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 [2023-12-16 08:12:32,692 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 [2023-12-16 08:12:32,692 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:32,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:32,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1692217056, now seen corresponding path program 1 times [2023-12-16 08:12:32,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:32,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429065710] [2023-12-16 08:12:32,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:32,693 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:32,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:32,694 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) [2023-12-16 08:12:32,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:32,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:32,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:32,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:32,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:32,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:32,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429065710] [2023-12-16 08:12:32,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429065710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:32,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:32,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:32,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737160688] [2023-12-16 08:12:32,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:32,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:32,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:32,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:32,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:32,804 INFO L87 Difference]: Start difference. First operand 827 states and 1153 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-12-16 08:12:33,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:33,165 INFO L93 Difference]: Finished difference Result 1066 states and 1518 transitions. [2023-12-16 08:12:33,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:12:33,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 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 62 [2023-12-16 08:12:33,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:33,169 INFO L225 Difference]: With dead ends: 1066 [2023-12-16 08:12:33,169 INFO L226 Difference]: Without dead ends: 951 [2023-12-16 08:12:33,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:33,170 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 483 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:33,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 637 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:12:33,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2023-12-16 08:12:33,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 940. [2023-12-16 08:12:33,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 739 states have (on average 1.451962110960758) internal successors, (1073), 753 states have internal predecessors, (1073), 118 states have call successors, (118), 70 states have call predecessors, (118), 81 states have return successors, (133), 119 states have call predecessors, (133), 114 states have call successors, (133) [2023-12-16 08:12:33,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1324 transitions. [2023-12-16 08:12:33,209 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1324 transitions. Word has length 62 [2023-12-16 08:12:33,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:33,210 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 1324 transitions. [2023-12-16 08:12:33,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-12-16 08:12:33,210 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1324 transitions. [2023-12-16 08:12:33,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 08:12:33,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:33,211 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] [2023-12-16 08:12:33,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:33,413 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 [2023-12-16 08:12:33,415 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:33,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:33,415 INFO L85 PathProgramCache]: Analyzing trace with hash -470382560, now seen corresponding path program 1 times [2023-12-16 08:12:33,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:33,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359819147] [2023-12-16 08:12:33,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:33,416 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:33,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:33,417 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) [2023-12-16 08:12:33,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:33,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:33,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:33,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:33,505 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:33,505 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:33,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359819147] [2023-12-16 08:12:33,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359819147] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:33,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:33,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:33,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925742334] [2023-12-16 08:12:33,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:33,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:33,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:33,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:33,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:33,506 INFO L87 Difference]: Start difference. First operand 940 states and 1324 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 08:12:33,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:33,846 INFO L93 Difference]: Finished difference Result 1168 states and 1675 transitions. [2023-12-16 08:12:33,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:33,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 62 [2023-12-16 08:12:33,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:33,850 INFO L225 Difference]: With dead ends: 1168 [2023-12-16 08:12:33,850 INFO L226 Difference]: Without dead ends: 940 [2023-12-16 08:12:33,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:33,851 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 405 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:33,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 468 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:12:33,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2023-12-16 08:12:33,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 940. [2023-12-16 08:12:33,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 739 states have (on average 1.442489851150203) internal successors, (1066), 753 states have internal predecessors, (1066), 118 states have call successors, (118), 70 states have call predecessors, (118), 81 states have return successors, (133), 119 states have call predecessors, (133), 114 states have call successors, (133) [2023-12-16 08:12:33,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1317 transitions. [2023-12-16 08:12:33,905 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1317 transitions. Word has length 62 [2023-12-16 08:12:33,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:33,905 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 1317 transitions. [2023-12-16 08:12:33,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 08:12:33,906 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1317 transitions. [2023-12-16 08:12:33,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 08:12:33,906 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:33,907 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] [2023-12-16 08:12:33,920 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 [2023-12-16 08:12:34,120 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 [2023-12-16 08:12:34,120 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:34,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:34,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1538066144, now seen corresponding path program 1 times [2023-12-16 08:12:34,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:34,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525480164] [2023-12-16 08:12:34,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:34,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:34,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:34,122 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) [2023-12-16 08:12:34,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:34,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:34,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:34,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:34,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:34,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:34,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525480164] [2023-12-16 08:12:34,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [525480164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:34,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:34,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:34,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019350990] [2023-12-16 08:12:34,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:34,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:34,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:34,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:34,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:34,212 INFO L87 Difference]: Start difference. First operand 940 states and 1317 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 08:12:34,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:34,523 INFO L93 Difference]: Finished difference Result 1214 states and 1733 transitions. [2023-12-16 08:12:34,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:12:34,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 62 [2023-12-16 08:12:34,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:34,527 INFO L225 Difference]: With dead ends: 1214 [2023-12-16 08:12:34,527 INFO L226 Difference]: Without dead ends: 986 [2023-12-16 08:12:34,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:34,528 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 422 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:34,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 462 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:12:34,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2023-12-16 08:12:34,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 986. [2023-12-16 08:12:34,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 779 states have (on average 1.4313222079589216) internal successors, (1115), 793 states have internal predecessors, (1115), 120 states have call successors, (120), 74 states have call predecessors, (120), 85 states have return successors, (135), 121 states have call predecessors, (135), 116 states have call successors, (135) [2023-12-16 08:12:34,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1370 transitions. [2023-12-16 08:12:34,602 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1370 transitions. Word has length 62 [2023-12-16 08:12:34,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:34,602 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1370 transitions. [2023-12-16 08:12:34,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 08:12:34,602 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1370 transitions. [2023-12-16 08:12:34,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 08:12:34,603 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:34,603 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] [2023-12-16 08:12:34,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:34,806 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 [2023-12-16 08:12:34,807 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:34,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:34,807 INFO L85 PathProgramCache]: Analyzing trace with hash -817739106, now seen corresponding path program 1 times [2023-12-16 08:12:34,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:34,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456919389] [2023-12-16 08:12:34,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:34,807 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:34,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:34,808 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) [2023-12-16 08:12:34,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 08:12:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:34,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:34,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:34,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:34,921 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:34,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:34,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456919389] [2023-12-16 08:12:34,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [456919389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:34,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:34,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:34,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810262722] [2023-12-16 08:12:34,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:34,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:34,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:34,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:34,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:34,922 INFO L87 Difference]: Start difference. First operand 986 states and 1370 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 08:12:35,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:35,245 INFO L93 Difference]: Finished difference Result 1306 states and 1839 transitions. [2023-12-16 08:12:35,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:12:35,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 62 [2023-12-16 08:12:35,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:35,250 INFO L225 Difference]: With dead ends: 1306 [2023-12-16 08:12:35,250 INFO L226 Difference]: Without dead ends: 1032 [2023-12-16 08:12:35,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:35,253 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 415 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:35,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 455 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:12:35,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2023-12-16 08:12:35,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1032. [2023-12-16 08:12:35,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 819 states have (on average 1.4163614163614164) internal successors, (1160), 833 states have internal predecessors, (1160), 122 states have call successors, (122), 78 states have call predecessors, (122), 89 states have return successors, (137), 123 states have call predecessors, (137), 118 states have call successors, (137) [2023-12-16 08:12:35,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1419 transitions. [2023-12-16 08:12:35,307 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1419 transitions. Word has length 62 [2023-12-16 08:12:35,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:35,307 INFO L495 AbstractCegarLoop]: Abstraction has 1032 states and 1419 transitions. [2023-12-16 08:12:35,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 08:12:35,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1419 transitions. [2023-12-16 08:12:35,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 08:12:35,308 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:35,308 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] [2023-12-16 08:12:35,312 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 [2023-12-16 08:12:35,512 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 [2023-12-16 08:12:35,513 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:35,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:35,513 INFO L85 PathProgramCache]: Analyzing trace with hash 541674749, now seen corresponding path program 1 times [2023-12-16 08:12:35,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:35,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1305868261] [2023-12-16 08:12:35,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:35,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:35,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:35,515 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) [2023-12-16 08:12:35,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:35,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:35,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:35,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:35,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:35,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:35,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1305868261] [2023-12-16 08:12:35,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1305868261] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:35,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:35,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:35,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570624969] [2023-12-16 08:12:35,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:35,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:35,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:35,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:35,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:35,608 INFO L87 Difference]: Start difference. First operand 1032 states and 1419 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 08:12:35,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:35,965 INFO L93 Difference]: Finished difference Result 1392 states and 1929 transitions. [2023-12-16 08:12:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:12:35,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 62 [2023-12-16 08:12:35,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:35,969 INFO L225 Difference]: With dead ends: 1392 [2023-12-16 08:12:35,969 INFO L226 Difference]: Without dead ends: 1072 [2023-12-16 08:12:35,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:35,971 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 409 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:35,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 448 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:12:35,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-12-16 08:12:36,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2023-12-16 08:12:36,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 857 states have (on average 1.3990665110851808) internal successors, (1199), 871 states have internal predecessors, (1199), 122 states have call successors, (122), 80 states have call predecessors, (122), 91 states have return successors, (137), 123 states have call predecessors, (137), 118 states have call successors, (137) [2023-12-16 08:12:36,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1458 transitions. [2023-12-16 08:12:36,019 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1458 transitions. Word has length 62 [2023-12-16 08:12:36,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:36,020 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1458 transitions. [2023-12-16 08:12:36,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 08:12:36,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1458 transitions. [2023-12-16 08:12:36,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 08:12:36,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:36,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:36,027 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 [2023-12-16 08:12:36,225 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 [2023-12-16 08:12:36,225 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:36,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:36,225 INFO L85 PathProgramCache]: Analyzing trace with hash 781003709, now seen corresponding path program 1 times [2023-12-16 08:12:36,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:36,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491642267] [2023-12-16 08:12:36,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:36,226 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:36,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:36,227 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) [2023-12-16 08:12:36,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 08:12:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:36,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:36,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:36,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:36,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:36,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:36,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491642267] [2023-12-16 08:12:36,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491642267] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:36,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:36,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:36,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607326915] [2023-12-16 08:12:36,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:36,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:12:36,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:36,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:12:36,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:12:36,298 INFO L87 Difference]: Start difference. First operand 1072 states and 1458 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 08:12:36,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:36,402 INFO L93 Difference]: Finished difference Result 1463 states and 1992 transitions. [2023-12-16 08:12:36,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:36,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 62 [2023-12-16 08:12:36,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:36,406 INFO L225 Difference]: With dead ends: 1463 [2023-12-16 08:12:36,406 INFO L226 Difference]: Without dead ends: 1104 [2023-12-16 08:12:36,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:12:36,408 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 20 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:36,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 881 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:36,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2023-12-16 08:12:36,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1076. [2023-12-16 08:12:36,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 861 states have (on average 1.3902439024390243) internal successors, (1197), 875 states have internal predecessors, (1197), 122 states have call successors, (122), 80 states have call predecessors, (122), 91 states have return successors, (137), 123 states have call predecessors, (137), 118 states have call successors, (137) [2023-12-16 08:12:36,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1456 transitions. [2023-12-16 08:12:36,458 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1456 transitions. Word has length 62 [2023-12-16 08:12:36,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:36,458 INFO L495 AbstractCegarLoop]: Abstraction has 1076 states and 1456 transitions. [2023-12-16 08:12:36,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 08:12:36,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1456 transitions. [2023-12-16 08:12:36,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 08:12:36,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:36,459 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] [2023-12-16 08:12:36,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:36,662 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 [2023-12-16 08:12:36,662 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:36,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:36,663 INFO L85 PathProgramCache]: Analyzing trace with hash -248355589, now seen corresponding path program 1 times [2023-12-16 08:12:36,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:36,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95962785] [2023-12-16 08:12:36,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:36,664 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:36,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:36,665 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) [2023-12-16 08:12:36,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:36,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:36,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:36,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:36,750 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:36,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:36,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95962785] [2023-12-16 08:12:36,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95962785] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:36,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:36,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:36,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130904624] [2023-12-16 08:12:36,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:36,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:12:36,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:36,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:12:36,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:12:36,751 INFO L87 Difference]: Start difference. First operand 1076 states and 1456 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 08:12:36,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:36,844 INFO L93 Difference]: Finished difference Result 1459 states and 1972 transitions. [2023-12-16 08:12:36,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:36,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 62 [2023-12-16 08:12:36,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:36,849 INFO L225 Difference]: With dead ends: 1459 [2023-12-16 08:12:36,849 INFO L226 Difference]: Without dead ends: 1096 [2023-12-16 08:12:36,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:12:36,851 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 11 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:36,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 885 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:36,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2023-12-16 08:12:36,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1080. [2023-12-16 08:12:36,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 865 states have (on average 1.3815028901734103) internal successors, (1195), 879 states have internal predecessors, (1195), 122 states have call successors, (122), 80 states have call predecessors, (122), 91 states have return successors, (137), 123 states have call predecessors, (137), 118 states have call successors, (137) [2023-12-16 08:12:36,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1454 transitions. [2023-12-16 08:12:36,947 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1454 transitions. Word has length 62 [2023-12-16 08:12:36,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:36,948 INFO L495 AbstractCegarLoop]: Abstraction has 1080 states and 1454 transitions. [2023-12-16 08:12:36,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 08:12:36,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1454 transitions. [2023-12-16 08:12:36,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 08:12:36,950 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:36,950 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] [2023-12-16 08:12:36,956 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 (12)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:37,153 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 [2023-12-16 08:12:37,154 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:37,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:37,154 INFO L85 PathProgramCache]: Analyzing trace with hash -320742147, now seen corresponding path program 1 times [2023-12-16 08:12:37,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:37,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405534769] [2023-12-16 08:12:37,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:37,155 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 [2023-12-16 08:12:37,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:37,156 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) [2023-12-16 08:12:37,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:37,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:37,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:37,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:37,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:37,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:37,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405534769] [2023-12-16 08:12:37,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405534769] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:37,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:37,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:37,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050486003] [2023-12-16 08:12:37,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:37,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:12:37,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:37,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:12:37,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:12:37,245 INFO L87 Difference]: Start difference. First operand 1080 states and 1454 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 08:12:37,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:37,334 INFO L93 Difference]: Finished difference Result 1455 states and 1952 transitions. [2023-12-16 08:12:37,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:37,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 62 [2023-12-16 08:12:37,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:37,338 INFO L225 Difference]: With dead ends: 1455 [2023-12-16 08:12:37,338 INFO L226 Difference]: Without dead ends: 1088 [2023-12-16 08:12:37,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:12:37,340 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 2 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:37,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 883 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:37,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2023-12-16 08:12:37,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 1084. [2023-12-16 08:12:37,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 869 states have (on average 1.3728423475258917) internal successors, (1193), 883 states have internal predecessors, (1193), 122 states have call successors, (122), 80 states have call predecessors, (122), 91 states have return successors, (137), 123 states have call predecessors, (137), 118 states have call successors, (137) [2023-12-16 08:12:37,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1452 transitions. [2023-12-16 08:12:37,393 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1452 transitions. Word has length 62 [2023-12-16 08:12:37,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:37,393 INFO L495 AbstractCegarLoop]: Abstraction has 1084 states and 1452 transitions. [2023-12-16 08:12:37,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 08:12:37,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1452 transitions. [2023-12-16 08:12:37,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 08:12:37,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:37,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:37,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:37,600 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 [2023-12-16 08:12:37,601 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:37,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:37,601 INFO L85 PathProgramCache]: Analyzing trace with hash -830215237, now seen corresponding path program 1 times [2023-12-16 08:12:37,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:37,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974040065] [2023-12-16 08:12:37,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:37,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:37,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:37,603 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) [2023-12-16 08:12:37,604 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 (14)] Waiting until timeout for monitored process [2023-12-16 08:12:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:37,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:12:37,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:37,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:37,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:37,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:37,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974040065] [2023-12-16 08:12:37,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974040065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:37,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:37,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:37,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508875195] [2023-12-16 08:12:37,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:37,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:37,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:37,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:37,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:37,724 INFO L87 Difference]: Start difference. First operand 1084 states and 1452 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 08:12:38,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:38,072 INFO L93 Difference]: Finished difference Result 1456 states and 1931 transitions. [2023-12-16 08:12:38,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:38,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 62 [2023-12-16 08:12:38,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:38,076 INFO L225 Difference]: With dead ends: 1456 [2023-12-16 08:12:38,076 INFO L226 Difference]: Without dead ends: 1084 [2023-12-16 08:12:38,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:38,077 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 360 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:38,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 440 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:12:38,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2023-12-16 08:12:38,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1084. [2023-12-16 08:12:38,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 869 states have (on average 1.3647871116225547) internal successors, (1186), 883 states have internal predecessors, (1186), 122 states have call successors, (122), 80 states have call predecessors, (122), 91 states have return successors, (137), 123 states have call predecessors, (137), 118 states have call successors, (137) [2023-12-16 08:12:38,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1445 transitions. [2023-12-16 08:12:38,135 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1445 transitions. Word has length 62 [2023-12-16 08:12:38,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:38,135 INFO L495 AbstractCegarLoop]: Abstraction has 1084 states and 1445 transitions. [2023-12-16 08:12:38,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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) [2023-12-16 08:12:38,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1445 transitions. [2023-12-16 08:12:38,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 08:12:38,136 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:38,136 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] [2023-12-16 08:12:38,139 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 [2023-12-16 08:12:38,339 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 [2023-12-16 08:12:38,340 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:38,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:38,340 INFO L85 PathProgramCache]: Analyzing trace with hash -611360519, now seen corresponding path program 1 times [2023-12-16 08:12:38,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:38,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99896614] [2023-12-16 08:12:38,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:38,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:38,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:38,342 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) [2023-12-16 08:12:38,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:38,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:38,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:38,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:38,451 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:38,451 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:38,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99896614] [2023-12-16 08:12:38,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99896614] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:38,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:38,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:12:38,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248785417] [2023-12-16 08:12:38,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:38,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:38,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:38,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:38,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:38,452 INFO L87 Difference]: Start difference. First operand 1084 states and 1445 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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) [2023-12-16 08:12:38,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:38,580 INFO L93 Difference]: Finished difference Result 1793 states and 2336 transitions. [2023-12-16 08:12:38,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:38,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 62 [2023-12-16 08:12:38,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:38,585 INFO L225 Difference]: With dead ends: 1793 [2023-12-16 08:12:38,585 INFO L226 Difference]: Without dead ends: 1422 [2023-12-16 08:12:38,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:38,586 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 237 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:38,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 459 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:38,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2023-12-16 08:12:38,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1420. [2023-12-16 08:12:38,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1155 states have (on average 1.3255411255411256) internal successors, (1531), 1172 states have internal predecessors, (1531), 149 states have call successors, (149), 102 states have call predecessors, (149), 114 states have return successors, (165), 148 states have call predecessors, (165), 145 states have call successors, (165) [2023-12-16 08:12:38,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 1845 transitions. [2023-12-16 08:12:38,670 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 1845 transitions. Word has length 62 [2023-12-16 08:12:38,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:38,671 INFO L495 AbstractCegarLoop]: Abstraction has 1420 states and 1845 transitions. [2023-12-16 08:12:38,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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) [2023-12-16 08:12:38,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 1845 transitions. [2023-12-16 08:12:38,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 08:12:38,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:38,672 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] [2023-12-16 08:12:38,691 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 [2023-12-16 08:12:38,875 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 [2023-12-16 08:12:38,876 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:38,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:38,876 INFO L85 PathProgramCache]: Analyzing trace with hash 961990871, now seen corresponding path program 1 times [2023-12-16 08:12:38,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:38,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366971780] [2023-12-16 08:12:38,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:38,877 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:38,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:38,878 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) [2023-12-16 08:12:38,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 08:12:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:38,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:12:38,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:38,958 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 08:12:38,958 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:38,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:38,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366971780] [2023-12-16 08:12:38,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366971780] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:38,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:38,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:12:38,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133254545] [2023-12-16 08:12:38,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:38,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:12:38,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:38,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:12:38,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:38,960 INFO L87 Difference]: Start difference. First operand 1420 states and 1845 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) [2023-12-16 08:12:39,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:39,114 INFO L93 Difference]: Finished difference Result 2134 states and 2837 transitions. [2023-12-16 08:12:39,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:12:39,115 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 [2023-12-16 08:12:39,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:39,119 INFO L225 Difference]: With dead ends: 2134 [2023-12-16 08:12:39,119 INFO L226 Difference]: Without dead ends: 1444 [2023-12-16 08:12:39,120 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 [2023-12-16 08:12:39,120 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 3 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:39,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1454 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:12:39,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2023-12-16 08:12:39,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1436. [2023-12-16 08:12:39,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1167 states have (on average 1.3187660668380463) internal successors, (1539), 1184 states have internal predecessors, (1539), 149 states have call successors, (149), 102 states have call predecessors, (149), 118 states have return successors, (169), 152 states have call predecessors, (169), 145 states have call successors, (169) [2023-12-16 08:12:39,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1857 transitions. [2023-12-16 08:12:39,188 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1857 transitions. Word has length 73 [2023-12-16 08:12:39,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:39,189 INFO L495 AbstractCegarLoop]: Abstraction has 1436 states and 1857 transitions. [2023-12-16 08:12:39,189 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) [2023-12-16 08:12:39,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1857 transitions. [2023-12-16 08:12:39,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 08:12:39,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:39,191 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] [2023-12-16 08:12:39,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:39,394 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 [2023-12-16 08:12:39,394 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:39,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:39,395 INFO L85 PathProgramCache]: Analyzing trace with hash -883376295, now seen corresponding path program 1 times [2023-12-16 08:12:39,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:39,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403283755] [2023-12-16 08:12:39,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:39,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:39,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:39,397 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) [2023-12-16 08:12:39,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:39,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 08:12:39,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:39,517 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 08:12:39,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:39,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:39,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403283755] [2023-12-16 08:12:39,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403283755] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:39,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:39,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 08:12:39,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019056059] [2023-12-16 08:12:39,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:39,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:39,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:39,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:39,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:39,519 INFO L87 Difference]: Start difference. First operand 1436 states and 1857 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:12:39,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:39,993 INFO L93 Difference]: Finished difference Result 2970 states and 3977 transitions. [2023-12-16 08:12:39,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:12:39,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2023-12-16 08:12:39,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:40,001 INFO L225 Difference]: With dead ends: 2970 [2023-12-16 08:12:40,001 INFO L226 Difference]: Without dead ends: 2262 [2023-12-16 08:12:40,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 08:12:40,003 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 257 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:40,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 651 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:12:40,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2023-12-16 08:12:40,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 2218. [2023-12-16 08:12:40,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2218 states, 1767 states have (on average 1.3271080928126768) internal successors, (2345), 1816 states have internal predecessors, (2345), 235 states have call successors, (235), 158 states have call predecessors, (235), 214 states have return successors, (325), 248 states have call predecessors, (325), 231 states have call successors, (325) [2023-12-16 08:12:40,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2218 states to 2218 states and 2905 transitions. [2023-12-16 08:12:40,122 INFO L78 Accepts]: Start accepts. Automaton has 2218 states and 2905 transitions. Word has length 73 [2023-12-16 08:12:40,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:40,123 INFO L495 AbstractCegarLoop]: Abstraction has 2218 states and 2905 transitions. [2023-12-16 08:12:40,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:12:40,123 INFO L276 IsEmpty]: Start isEmpty. Operand 2218 states and 2905 transitions. [2023-12-16 08:12:40,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 08:12:40,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:40,125 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] [2023-12-16 08:12:40,132 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 [2023-12-16 08:12:40,328 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 [2023-12-16 08:12:40,328 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:40,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:40,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1167607703, now seen corresponding path program 1 times [2023-12-16 08:12:40,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:40,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961116630] [2023-12-16 08:12:40,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:40,329 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:40,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:40,331 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) [2023-12-16 08:12:40,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:40,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:40,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:40,440 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 08:12:40,440 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:40,441 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:40,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961116630] [2023-12-16 08:12:40,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961116630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:40,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:40,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:40,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194224779] [2023-12-16 08:12:40,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:40,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:12:40,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:40,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:12:40,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:12:40,442 INFO L87 Difference]: Start difference. First operand 2218 states and 2905 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) [2023-12-16 08:12:40,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:40,918 INFO L93 Difference]: Finished difference Result 5134 states and 6888 transitions. [2023-12-16 08:12:40,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:12:40,919 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 [2023-12-16 08:12:40,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:40,930 INFO L225 Difference]: With dead ends: 5134 [2023-12-16 08:12:40,930 INFO L226 Difference]: Without dead ends: 3662 [2023-12-16 08:12:40,933 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 [2023-12-16 08:12:40,933 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 397 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:40,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 367 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:12:40,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2023-12-16 08:12:41,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 3658. [2023-12-16 08:12:41,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3658 states, 2851 states have (on average 1.3191862504384426) internal successors, (3761), 2948 states have internal predecessors, (3761), 415 states have call successors, (415), 270 states have call predecessors, (415), 390 states have return successors, (662), 448 states have call predecessors, (662), 411 states have call successors, (662) [2023-12-16 08:12:41,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3658 states to 3658 states and 4838 transitions. [2023-12-16 08:12:41,184 INFO L78 Accepts]: Start accepts. Automaton has 3658 states and 4838 transitions. Word has length 73 [2023-12-16 08:12:41,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:41,184 INFO L495 AbstractCegarLoop]: Abstraction has 3658 states and 4838 transitions. [2023-12-16 08:12:41,184 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) [2023-12-16 08:12:41,184 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 4838 transitions. [2023-12-16 08:12:41,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-16 08:12:41,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:41,187 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] [2023-12-16 08:12:41,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-16 08:12:41,390 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 [2023-12-16 08:12:41,391 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:41,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:41,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1370986717, now seen corresponding path program 1 times [2023-12-16 08:12:41,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:41,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697767209] [2023-12-16 08:12:41,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:41,391 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:41,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:41,392 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) [2023-12-16 08:12:41,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:41,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:41,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:41,462 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:12:41,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:41,462 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:41,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697767209] [2023-12-16 08:12:41,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697767209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:41,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:41,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:12:41,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362965628] [2023-12-16 08:12:41,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:41,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:41,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:41,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:41,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:41,465 INFO L87 Difference]: Start difference. First operand 3658 states and 4838 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) [2023-12-16 08:12:41,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:41,884 INFO L93 Difference]: Finished difference Result 9326 states and 12467 transitions. [2023-12-16 08:12:41,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:41,885 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 [2023-12-16 08:12:41,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:41,901 INFO L225 Difference]: With dead ends: 9326 [2023-12-16 08:12:41,901 INFO L226 Difference]: Without dead ends: 5082 [2023-12-16 08:12:41,908 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 [2023-12-16 08:12:41,908 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 110 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:41,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 683 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:41,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5082 states. [2023-12-16 08:12:42,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5082 to 5082. [2023-12-16 08:12:42,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5082 states, 3931 states have (on average 1.315950139913508) internal successors, (5173), 4068 states have internal predecessors, (5173), 579 states have call successors, (579), 382 states have call predecessors, (579), 570 states have return successors, (994), 640 states have call predecessors, (994), 575 states have call successors, (994) [2023-12-16 08:12:42,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5082 states to 5082 states and 6746 transitions. [2023-12-16 08:12:42,236 INFO L78 Accepts]: Start accepts. Automaton has 5082 states and 6746 transitions. Word has length 75 [2023-12-16 08:12:42,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:42,237 INFO L495 AbstractCegarLoop]: Abstraction has 5082 states and 6746 transitions. [2023-12-16 08:12:42,237 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) [2023-12-16 08:12:42,237 INFO L276 IsEmpty]: Start isEmpty. Operand 5082 states and 6746 transitions. [2023-12-16 08:12:42,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 08:12:42,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:42,243 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:42,258 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 [2023-12-16 08:12:42,448 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 [2023-12-16 08:12:42,448 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:42,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:42,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1591831051, now seen corresponding path program 1 times [2023-12-16 08:12:42,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:42,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648444544] [2023-12-16 08:12:42,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:42,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:42,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:42,451 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) [2023-12-16 08:12:42,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:42,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:42,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:42,591 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 08:12:42,592 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:42,592 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:42,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648444544] [2023-12-16 08:12:42,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648444544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:42,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:42,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:12:42,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800162793] [2023-12-16 08:12:42,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:42,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:42,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:42,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:42,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:42,594 INFO L87 Difference]: Start difference. First operand 5082 states and 6746 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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) [2023-12-16 08:12:42,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:42,904 INFO L93 Difference]: Finished difference Result 6361 states and 8329 transitions. [2023-12-16 08:12:42,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:42,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 100 [2023-12-16 08:12:42,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:42,925 INFO L225 Difference]: With dead ends: 6361 [2023-12-16 08:12:42,925 INFO L226 Difference]: Without dead ends: 5654 [2023-12-16 08:12:42,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:42,929 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 242 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:42,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 460 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:42,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5654 states. [2023-12-16 08:12:43,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5654 to 5646. [2023-12-16 08:12:43,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5646 states, 4411 states have (on average 1.3042394014962593) internal successors, (5753), 4552 states have internal predecessors, (5753), 625 states have call successors, (625), 418 states have call predecessors, (625), 608 states have return successors, (1042), 684 states have call predecessors, (1042), 621 states have call successors, (1042) [2023-12-16 08:12:43,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5646 states to 5646 states and 7420 transitions. [2023-12-16 08:12:43,365 INFO L78 Accepts]: Start accepts. Automaton has 5646 states and 7420 transitions. Word has length 100 [2023-12-16 08:12:43,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:43,365 INFO L495 AbstractCegarLoop]: Abstraction has 5646 states and 7420 transitions. [2023-12-16 08:12:43,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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) [2023-12-16 08:12:43,366 INFO L276 IsEmpty]: Start isEmpty. Operand 5646 states and 7420 transitions. [2023-12-16 08:12:43,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 08:12:43,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:43,371 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:43,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:43,575 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 [2023-12-16 08:12:43,575 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:43,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:43,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1149210740, now seen corresponding path program 1 times [2023-12-16 08:12:43,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:43,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088007822] [2023-12-16 08:12:43,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:43,576 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:43,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:43,577 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) [2023-12-16 08:12:43,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:43,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 08:12:43,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:43,730 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 08:12:43,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:43,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:43,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088007822] [2023-12-16 08:12:43,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088007822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:43,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:43,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:43,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465860140] [2023-12-16 08:12:43,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:43,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:12:43,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:43,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:12:43,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:12:43,732 INFO L87 Difference]: Start difference. First operand 5646 states and 7420 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 08:12:44,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:44,311 INFO L93 Difference]: Finished difference Result 8085 states and 10403 transitions. [2023-12-16 08:12:44,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:12:44,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 100 [2023-12-16 08:12:44,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:44,336 INFO L225 Difference]: With dead ends: 8085 [2023-12-16 08:12:44,336 INFO L226 Difference]: Without dead ends: 6815 [2023-12-16 08:12:44,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:44,342 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 359 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:44,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 531 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:12:44,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6815 states. [2023-12-16 08:12:44,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6815 to 6811. [2023-12-16 08:12:44,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6811 states, 5397 states have (on average 1.2844172688530666) internal successors, (6932), 5551 states have internal predecessors, (6932), 720 states have call successors, (720), 490 states have call predecessors, (720), 692 states have return successors, (1173), 779 states have call predecessors, (1173), 716 states have call successors, (1173) [2023-12-16 08:12:44,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6811 states to 6811 states and 8825 transitions. [2023-12-16 08:12:44,762 INFO L78 Accepts]: Start accepts. Automaton has 6811 states and 8825 transitions. Word has length 100 [2023-12-16 08:12:44,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:44,762 INFO L495 AbstractCegarLoop]: Abstraction has 6811 states and 8825 transitions. [2023-12-16 08:12:44,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 08:12:44,763 INFO L276 IsEmpty]: Start isEmpty. Operand 6811 states and 8825 transitions. [2023-12-16 08:12:44,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 08:12:44,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:44,770 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:44,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:44,976 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 [2023-12-16 08:12:44,976 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:44,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:44,977 INFO L85 PathProgramCache]: Analyzing trace with hash 265701750, now seen corresponding path program 1 times [2023-12-16 08:12:44,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:44,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002735208] [2023-12-16 08:12:44,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:44,977 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:44,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:44,978 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) [2023-12-16 08:12:44,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:45,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:45,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:45,052 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 08:12:45,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:45,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:45,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002735208] [2023-12-16 08:12:45,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002735208] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:45,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:45,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:12:45,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106256479] [2023-12-16 08:12:45,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:45,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:45,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:45,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:45,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:45,054 INFO L87 Difference]: Start difference. First operand 6811 states and 8825 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2023-12-16 08:12:45,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:45,575 INFO L93 Difference]: Finished difference Result 8689 states and 11086 transitions. [2023-12-16 08:12:45,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:45,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 100 [2023-12-16 08:12:45,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:45,595 INFO L225 Difference]: With dead ends: 8689 [2023-12-16 08:12:45,595 INFO L226 Difference]: Without dead ends: 6254 [2023-12-16 08:12:45,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:45,601 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 164 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:45,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 426 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:45,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6254 states. [2023-12-16 08:12:45,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6254 to 6254. [2023-12-16 08:12:45,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6254 states, 4927 states have (on average 1.2916582098640146) internal successors, (6364), 5076 states have internal predecessors, (6364), 671 states have call successors, (671), 454 states have call predecessors, (671), 654 states have return successors, (1110), 732 states have call predecessors, (1110), 667 states have call successors, (1110) [2023-12-16 08:12:45,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6254 states to 6254 states and 8145 transitions. [2023-12-16 08:12:45,985 INFO L78 Accepts]: Start accepts. Automaton has 6254 states and 8145 transitions. Word has length 100 [2023-12-16 08:12:45,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:45,985 INFO L495 AbstractCegarLoop]: Abstraction has 6254 states and 8145 transitions. [2023-12-16 08:12:45,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2023-12-16 08:12:45,985 INFO L276 IsEmpty]: Start isEmpty. Operand 6254 states and 8145 transitions. [2023-12-16 08:12:45,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 08:12:45,992 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:45,992 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:45,997 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 [2023-12-16 08:12:46,195 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 [2023-12-16 08:12:46,196 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:46,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:46,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1798962703, now seen corresponding path program 1 times [2023-12-16 08:12:46,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:46,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1327023987] [2023-12-16 08:12:46,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:46,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:46,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:46,198 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) [2023-12-16 08:12:46,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:46,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 08:12:46,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:46,337 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 08:12:46,337 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:46,337 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:46,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1327023987] [2023-12-16 08:12:46,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1327023987] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:46,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:46,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:46,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327209491] [2023-12-16 08:12:46,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:46,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:12:46,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:46,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:12:46,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:12:46,339 INFO L87 Difference]: Start difference. First operand 6254 states and 8145 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2023-12-16 08:12:47,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:47,026 INFO L93 Difference]: Finished difference Result 9668 states and 12278 transitions. [2023-12-16 08:12:47,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:12:47,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 102 [2023-12-16 08:12:47,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:47,048 INFO L225 Difference]: With dead ends: 9668 [2023-12-16 08:12:47,048 INFO L226 Difference]: Without dead ends: 7790 [2023-12-16 08:12:47,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:47,053 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 350 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:47,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 509 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:12:47,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7790 states. [2023-12-16 08:12:47,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7790 to 7786. [2023-12-16 08:12:47,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7786 states, 6220 states have (on average 1.2715434083601287) internal successors, (7909), 6390 states have internal predecessors, (7909), 796 states have call successors, (796), 546 states have call predecessors, (796), 768 states have return successors, (1281), 859 states have call predecessors, (1281), 792 states have call successors, (1281) [2023-12-16 08:12:47,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7786 states to 7786 states and 9986 transitions. [2023-12-16 08:12:47,511 INFO L78 Accepts]: Start accepts. Automaton has 7786 states and 9986 transitions. Word has length 102 [2023-12-16 08:12:47,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:47,512 INFO L495 AbstractCegarLoop]: Abstraction has 7786 states and 9986 transitions. [2023-12-16 08:12:47,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2023-12-16 08:12:47,512 INFO L276 IsEmpty]: Start isEmpty. Operand 7786 states and 9986 transitions. [2023-12-16 08:12:47,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 08:12:47,519 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:47,519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:47,523 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 [2023-12-16 08:12:47,723 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 [2023-12-16 08:12:47,724 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:47,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:47,724 INFO L85 PathProgramCache]: Analyzing trace with hash 179987789, now seen corresponding path program 1 times [2023-12-16 08:12:47,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:47,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145257057] [2023-12-16 08:12:47,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:47,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:47,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:47,725 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) [2023-12-16 08:12:47,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:47,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:47,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:47,801 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 08:12:47,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:47,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:47,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145257057] [2023-12-16 08:12:47,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145257057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:47,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:47,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:12:47,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54418184] [2023-12-16 08:12:47,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:47,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:47,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:47,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:47,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:47,803 INFO L87 Difference]: Start difference. First operand 7786 states and 9986 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2023-12-16 08:12:48,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:48,364 INFO L93 Difference]: Finished difference Result 11192 states and 14081 transitions. [2023-12-16 08:12:48,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:48,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 102 [2023-12-16 08:12:48,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:48,385 INFO L225 Difference]: With dead ends: 11192 [2023-12-16 08:12:48,386 INFO L226 Difference]: Without dead ends: 7782 [2023-12-16 08:12:48,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:48,395 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 162 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:48,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 425 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:48,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7782 states. [2023-12-16 08:12:48,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7782 to 7782. [2023-12-16 08:12:48,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7782 states, 6219 states have (on average 1.2714262743206304) internal successors, (7907), 6388 states have internal predecessors, (7907), 793 states have call successors, (793), 546 states have call predecessors, (793), 768 states have return successors, (1278), 856 states have call predecessors, (1278), 789 states have call successors, (1278) [2023-12-16 08:12:48,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7782 states to 7782 states and 9978 transitions. [2023-12-16 08:12:48,950 INFO L78 Accepts]: Start accepts. Automaton has 7782 states and 9978 transitions. Word has length 102 [2023-12-16 08:12:48,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:48,950 INFO L495 AbstractCegarLoop]: Abstraction has 7782 states and 9978 transitions. [2023-12-16 08:12:48,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2023-12-16 08:12:48,950 INFO L276 IsEmpty]: Start isEmpty. Operand 7782 states and 9978 transitions. [2023-12-16 08:12:48,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 08:12:48,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:48,958 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:48,964 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 [2023-12-16 08:12:49,162 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 [2023-12-16 08:12:49,162 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:49,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:49,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1856256180, now seen corresponding path program 1 times [2023-12-16 08:12:49,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:49,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016356833] [2023-12-16 08:12:49,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:49,163 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:49,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:49,164 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) [2023-12-16 08:12:49,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:49,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:49,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:49,261 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 08:12:49,261 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:49,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:49,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016356833] [2023-12-16 08:12:49,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016356833] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:49,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:49,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:12:49,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438030013] [2023-12-16 08:12:49,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:49,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:49,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:49,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:49,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:49,263 INFO L87 Difference]: Start difference. First operand 7782 states and 9978 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2023-12-16 08:12:49,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:49,897 INFO L93 Difference]: Finished difference Result 13736 states and 17186 transitions. [2023-12-16 08:12:49,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:49,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 104 [2023-12-16 08:12:49,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:49,918 INFO L225 Difference]: With dead ends: 13736 [2023-12-16 08:12:49,918 INFO L226 Difference]: Without dead ends: 9076 [2023-12-16 08:12:49,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:49,927 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 118 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:49,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 687 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:49,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9076 states. [2023-12-16 08:12:50,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9076 to 9076. [2023-12-16 08:12:50,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9076 states, 7313 states have (on average 1.2558457541364694) internal successors, (9184), 7490 states have internal predecessors, (9184), 903 states have call successors, (903), 626 states have call predecessors, (903), 858 states have return successors, (1428), 968 states have call predecessors, (1428), 899 states have call successors, (1428) [2023-12-16 08:12:50,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9076 states to 9076 states and 11515 transitions. [2023-12-16 08:12:50,455 INFO L78 Accepts]: Start accepts. Automaton has 9076 states and 11515 transitions. Word has length 104 [2023-12-16 08:12:50,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:50,456 INFO L495 AbstractCegarLoop]: Abstraction has 9076 states and 11515 transitions. [2023-12-16 08:12:50,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2023-12-16 08:12:50,456 INFO L276 IsEmpty]: Start isEmpty. Operand 9076 states and 11515 transitions. [2023-12-16 08:12:50,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 08:12:50,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:50,468 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:50,482 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 [2023-12-16 08:12:50,672 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 [2023-12-16 08:12:50,673 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:50,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:50,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1124888629, now seen corresponding path program 1 times [2023-12-16 08:12:50,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:50,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592190347] [2023-12-16 08:12:50,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:50,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:50,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:50,675 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) [2023-12-16 08:12:50,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:50,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:50,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:50,822 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 08:12:50,822 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:50,822 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:50,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592190347] [2023-12-16 08:12:50,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592190347] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:50,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:50,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:12:50,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764824790] [2023-12-16 08:12:50,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:50,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:50,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:50,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:50,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:50,824 INFO L87 Difference]: Start difference. First operand 9076 states and 11515 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 08:12:51,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:51,427 INFO L93 Difference]: Finished difference Result 15069 states and 18703 transitions. [2023-12-16 08:12:51,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:51,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 130 [2023-12-16 08:12:51,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:51,453 INFO L225 Difference]: With dead ends: 15069 [2023-12-16 08:12:51,454 INFO L226 Difference]: Without dead ends: 10368 [2023-12-16 08:12:51,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:51,466 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 208 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:51,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 427 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:51,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10368 states. [2023-12-16 08:12:52,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10368 to 10350. [2023-12-16 08:12:52,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10350 states, 8387 states have (on average 1.2397758435674258) internal successors, (10398), 8572 states have internal predecessors, (10398), 1013 states have call successors, (1013), 706 states have call predecessors, (1013), 948 states have return successors, (1560), 1080 states have call predecessors, (1560), 1009 states have call successors, (1560) [2023-12-16 08:12:52,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10350 states to 10350 states and 12971 transitions. [2023-12-16 08:12:52,236 INFO L78 Accepts]: Start accepts. Automaton has 10350 states and 12971 transitions. Word has length 130 [2023-12-16 08:12:52,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:52,236 INFO L495 AbstractCegarLoop]: Abstraction has 10350 states and 12971 transitions. [2023-12-16 08:12:52,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 08:12:52,236 INFO L276 IsEmpty]: Start isEmpty. Operand 10350 states and 12971 transitions. [2023-12-16 08:12:52,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-16 08:12:52,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:52,248 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] [2023-12-16 08:12:52,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:52,451 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 [2023-12-16 08:12:52,452 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:52,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:52,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1733494925, now seen corresponding path program 1 times [2023-12-16 08:12:52,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:52,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325047323] [2023-12-16 08:12:52,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:52,452 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 [2023-12-16 08:12:52,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:52,453 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) [2023-12-16 08:12:52,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:52,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:12:52,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:52,548 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 08:12:52,548 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:52,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:52,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325047323] [2023-12-16 08:12:52,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325047323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:52,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:52,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:12:52,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700262517] [2023-12-16 08:12:52,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:52,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:12:52,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:52,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:12:52,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:52,549 INFO L87 Difference]: Start difference. First operand 10350 states and 12971 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) [2023-12-16 08:12:53,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:53,131 INFO L93 Difference]: Finished difference Result 14706 states and 18925 transitions. [2023-12-16 08:12:53,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:12:53,139 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 [2023-12-16 08:12:53,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:53,164 INFO L225 Difference]: With dead ends: 14706 [2023-12-16 08:12:53,164 INFO L226 Difference]: Without dead ends: 10390 [2023-12-16 08:12:53,175 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 [2023-12-16 08:12:53,176 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 32 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:53,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 1446 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:12:53,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10390 states. [2023-12-16 08:12:53,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10390 to 9904. [2023-12-16 08:12:53,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9904 states, 8109 states have (on average 1.231471204834135) internal successors, (9986), 8233 states have internal predecessors, (9986), 917 states have call successors, (917), 655 states have call predecessors, (917), 876 states have return successors, (1417), 1024 states have call predecessors, (1417), 913 states have call successors, (1417) [2023-12-16 08:12:53,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9904 states to 9904 states and 12320 transitions. [2023-12-16 08:12:53,754 INFO L78 Accepts]: Start accepts. Automaton has 9904 states and 12320 transitions. Word has length 138 [2023-12-16 08:12:53,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:53,754 INFO L495 AbstractCegarLoop]: Abstraction has 9904 states and 12320 transitions. [2023-12-16 08:12:53,754 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) [2023-12-16 08:12:53,754 INFO L276 IsEmpty]: Start isEmpty. Operand 9904 states and 12320 transitions. [2023-12-16 08:12:53,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 08:12:53,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:53,766 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] [2023-12-16 08:12:53,771 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 [2023-12-16 08:12:53,969 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 [2023-12-16 08:12:53,969 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:53,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:53,970 INFO L85 PathProgramCache]: Analyzing trace with hash -854083610, now seen corresponding path program 1 times [2023-12-16 08:12:53,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:53,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668445378] [2023-12-16 08:12:53,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:53,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:53,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:53,971 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) [2023-12-16 08:12:53,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:54,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:54,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:54,058 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-12-16 08:12:54,059 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:54,059 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:54,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668445378] [2023-12-16 08:12:54,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668445378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:54,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:54,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:12:54,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043700868] [2023-12-16 08:12:54,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:54,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:54,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:54,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:54,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:54,060 INFO L87 Difference]: Start difference. First operand 9904 states and 12320 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) [2023-12-16 08:12:54,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:54,477 INFO L93 Difference]: Finished difference Result 12211 states and 15383 transitions. [2023-12-16 08:12:54,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:54,477 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 [2023-12-16 08:12:54,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:54,499 INFO L225 Difference]: With dead ends: 12211 [2023-12-16 08:12:54,500 INFO L226 Difference]: Without dead ends: 8381 [2023-12-16 08:12:54,509 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 [2023-12-16 08:12:54,510 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 138 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:54,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 443 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:54,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8381 states. [2023-12-16 08:12:54,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8381 to 8381. [2023-12-16 08:12:54,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8381 states, 6928 states have (on average 1.2176674364896074) internal successors, (8436), 7026 states have internal predecessors, (8436), 741 states have call successors, (741), 543 states have call predecessors, (741), 710 states have return successors, (1097), 812 states have call predecessors, (1097), 737 states have call successors, (1097) [2023-12-16 08:12:55,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8381 states to 8381 states and 10274 transitions. [2023-12-16 08:12:55,008 INFO L78 Accepts]: Start accepts. Automaton has 8381 states and 10274 transitions. Word has length 139 [2023-12-16 08:12:55,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:55,008 INFO L495 AbstractCegarLoop]: Abstraction has 8381 states and 10274 transitions. [2023-12-16 08:12:55,008 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) [2023-12-16 08:12:55,008 INFO L276 IsEmpty]: Start isEmpty. Operand 8381 states and 10274 transitions. [2023-12-16 08:12:55,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 08:12:55,015 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:55,016 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] [2023-12-16 08:12:55,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2023-12-16 08:12:55,219 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 [2023-12-16 08:12:55,219 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:55,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:55,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1272550543, now seen corresponding path program 1 times [2023-12-16 08:12:55,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:55,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045598220] [2023-12-16 08:12:55,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:55,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:55,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:55,221 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) [2023-12-16 08:12:55,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:55,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:55,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:55,394 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 08:12:55,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:55,395 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:55,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045598220] [2023-12-16 08:12:55,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1045598220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:55,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:55,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:12:55,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745580242] [2023-12-16 08:12:55,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:55,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:55,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:55,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:55,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:55,396 INFO L87 Difference]: Start difference. First operand 8381 states and 10274 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) [2023-12-16 08:12:55,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:55,996 INFO L93 Difference]: Finished difference Result 12081 states and 15335 transitions. [2023-12-16 08:12:55,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:55,997 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 [2023-12-16 08:12:55,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:56,018 INFO L225 Difference]: With dead ends: 12081 [2023-12-16 08:12:56,019 INFO L226 Difference]: Without dead ends: 9974 [2023-12-16 08:12:56,024 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 [2023-12-16 08:12:56,025 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 64 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:56,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 573 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:12:56,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9974 states. [2023-12-16 08:12:56,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9974 to 9946. [2023-12-16 08:12:56,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9946 states, 8155 states have (on average 1.2353157572041693) internal successors, (10074), 8289 states have internal predecessors, (10074), 897 states have call successors, (897), 651 states have call predecessors, (897), 892 states have return successors, (1406), 1006 states have call predecessors, (1406), 893 states have call successors, (1406) [2023-12-16 08:12:56,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9946 states to 9946 states and 12377 transitions. [2023-12-16 08:12:56,686 INFO L78 Accepts]: Start accepts. Automaton has 9946 states and 12377 transitions. Word has length 141 [2023-12-16 08:12:56,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:56,686 INFO L495 AbstractCegarLoop]: Abstraction has 9946 states and 12377 transitions. [2023-12-16 08:12:56,686 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) [2023-12-16 08:12:56,687 INFO L276 IsEmpty]: Start isEmpty. Operand 9946 states and 12377 transitions. [2023-12-16 08:12:56,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 08:12:56,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:56,695 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] [2023-12-16 08:12:56,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:56,895 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 [2023-12-16 08:12:56,896 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:56,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:56,896 INFO L85 PathProgramCache]: Analyzing trace with hash -2096016996, now seen corresponding path program 1 times [2023-12-16 08:12:56,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:56,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246878920] [2023-12-16 08:12:56,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:56,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:56,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:56,898 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) [2023-12-16 08:12:56,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:56,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:56,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:57,027 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 08:12:57,027 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:57,027 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:57,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246878920] [2023-12-16 08:12:57,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246878920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:57,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:57,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:12:57,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985933890] [2023-12-16 08:12:57,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:57,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:57,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:57,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:57,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:57,029 INFO L87 Difference]: Start difference. First operand 9946 states and 12377 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) [2023-12-16 08:12:57,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:57,879 INFO L93 Difference]: Finished difference Result 16862 states and 22118 transitions. [2023-12-16 08:12:57,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:57,880 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 [2023-12-16 08:12:57,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:57,911 INFO L225 Difference]: With dead ends: 16862 [2023-12-16 08:12:57,912 INFO L226 Difference]: Without dead ends: 13190 [2023-12-16 08:12:57,921 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 [2023-12-16 08:12:57,922 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 94 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:57,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 611 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:12:57,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13190 states. [2023-12-16 08:12:58,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13190 to 13138. [2023-12-16 08:12:58,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13138 states, 10647 states have (on average 1.2465483234714003) internal successors, (13272), 10831 states have internal predecessors, (13272), 1233 states have call successors, (1233), 885 states have call predecessors, (1233), 1256 states have return successors, (2204), 1422 states have call predecessors, (2204), 1229 states have call successors, (2204) [2023-12-16 08:12:58,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13138 states to 13138 states and 16709 transitions. [2023-12-16 08:12:58,747 INFO L78 Accepts]: Start accepts. Automaton has 13138 states and 16709 transitions. Word has length 142 [2023-12-16 08:12:58,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:58,747 INFO L495 AbstractCegarLoop]: Abstraction has 13138 states and 16709 transitions. [2023-12-16 08:12:58,747 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) [2023-12-16 08:12:58,747 INFO L276 IsEmpty]: Start isEmpty. Operand 13138 states and 16709 transitions. [2023-12-16 08:12:58,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 08:12:58,757 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:58,757 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] [2023-12-16 08:12:58,760 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 [2023-12-16 08:12:58,960 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 [2023-12-16 08:12:58,960 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:58,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:58,960 INFO L85 PathProgramCache]: Analyzing trace with hash -126342475, now seen corresponding path program 1 times [2023-12-16 08:12:58,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:58,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342973510] [2023-12-16 08:12:58,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:58,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:58,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:58,962 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) [2023-12-16 08:12:58,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:12:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:59,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:59,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:59,142 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-16 08:12:59,143 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:59,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:59,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342973510] [2023-12-16 08:12:59,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [342973510] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:59,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:59,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:12:59,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399351877] [2023-12-16 08:12:59,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:59,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:59,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:59,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:59,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:59,144 INFO L87 Difference]: Start difference. First operand 13138 states and 16709 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) [2023-12-16 08:13:00,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:00,386 INFO L93 Difference]: Finished difference Result 26750 states and 35366 transitions. [2023-12-16 08:13:00,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:00,386 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 [2023-12-16 08:13:00,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:00,447 INFO L225 Difference]: With dead ends: 26750 [2023-12-16 08:13:00,447 INFO L226 Difference]: Without dead ends: 19886 [2023-12-16 08:13:00,464 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 [2023-12-16 08:13:00,464 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 68 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:00,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 578 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:13:00,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19886 states. [2023-12-16 08:13:01,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19886 to 19882. [2023-12-16 08:13:02,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19882 states, 15914 states have (on average 1.2590172175443006) internal successors, (20036), 16227 states have internal predecessors, (20036), 1941 states have call successors, (1941), 1371 states have call predecessors, (1941), 2025 states have return successors, (3678), 2284 states have call predecessors, (3678), 1937 states have call successors, (3678) [2023-12-16 08:13:02,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19882 states to 19882 states and 25655 transitions. [2023-12-16 08:13:02,064 INFO L78 Accepts]: Start accepts. Automaton has 19882 states and 25655 transitions. Word has length 143 [2023-12-16 08:13:02,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:02,065 INFO L495 AbstractCegarLoop]: Abstraction has 19882 states and 25655 transitions. [2023-12-16 08:13:02,065 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) [2023-12-16 08:13:02,065 INFO L276 IsEmpty]: Start isEmpty. Operand 19882 states and 25655 transitions. [2023-12-16 08:13:02,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 08:13:02,081 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:02,081 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:02,087 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 [2023-12-16 08:13:02,281 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 [2023-12-16 08:13:02,282 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:02,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:02,282 INFO L85 PathProgramCache]: Analyzing trace with hash -78296799, now seen corresponding path program 1 times [2023-12-16 08:13:02,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:02,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460218484] [2023-12-16 08:13:02,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:02,283 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:02,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:02,284 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) [2023-12-16 08:13:02,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:13:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:02,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:02,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:02,386 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-12-16 08:13:02,386 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:02,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:02,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1460218484] [2023-12-16 08:13:02,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1460218484] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:02,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:02,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:02,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685749501] [2023-12-16 08:13:02,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:02,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:02,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:02,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:02,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:02,390 INFO L87 Difference]: Start difference. First operand 19882 states and 25655 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 08:13:05,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:05,003 INFO L93 Difference]: Finished difference Result 46529 states and 61403 transitions. [2023-12-16 08:13:05,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:13:05,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 147 [2023-12-16 08:13:05,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:05,081 INFO L225 Difference]: With dead ends: 46529 [2023-12-16 08:13:05,081 INFO L226 Difference]: Without dead ends: 32634 [2023-12-16 08:13:05,105 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 [2023-12-16 08:13:05,106 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 425 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:05,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 472 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:13:05,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32634 states. [2023-12-16 08:13:07,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32634 to 32586. [2023-12-16 08:13:07,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32586 states, 25712 states have (on average 1.2647401991288114) internal successors, (32519), 26248 states have internal predecessors, (32519), 3336 states have call successors, (3336), 2322 states have call predecessors, (3336), 3536 states have return successors, (6472), 4016 states have call predecessors, (6472), 3332 states have call successors, (6472) [2023-12-16 08:13:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32586 states to 32586 states and 42327 transitions. [2023-12-16 08:13:07,993 INFO L78 Accepts]: Start accepts. Automaton has 32586 states and 42327 transitions. Word has length 147 [2023-12-16 08:13:07,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:07,993 INFO L495 AbstractCegarLoop]: Abstraction has 32586 states and 42327 transitions. [2023-12-16 08:13:07,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 08:13:07,993 INFO L276 IsEmpty]: Start isEmpty. Operand 32586 states and 42327 transitions. [2023-12-16 08:13:08,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 08:13:08,003 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:08,004 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 08:13:08,007 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 [2023-12-16 08:13:08,207 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 [2023-12-16 08:13:08,207 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:08,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:08,207 INFO L85 PathProgramCache]: Analyzing trace with hash -377434162, now seen corresponding path program 1 times [2023-12-16 08:13:08,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:08,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794303258] [2023-12-16 08:13:08,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:08,208 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:08,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:08,209 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) [2023-12-16 08:13:08,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-16 08:13:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:08,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:08,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:08,339 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-16 08:13:08,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:08,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:08,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794303258] [2023-12-16 08:13:08,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1794303258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:08,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:08,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:08,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470686208] [2023-12-16 08:13:08,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:08,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:13:08,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:08,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:13:08,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:13:08,340 INFO L87 Difference]: Start difference. First operand 32586 states and 42327 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 08:13:10,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:10,915 INFO L93 Difference]: Finished difference Result 38614 states and 49544 transitions. [2023-12-16 08:13:10,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:13:10,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 148 [2023-12-16 08:13:10,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:10,996 INFO L225 Difference]: With dead ends: 38614 [2023-12-16 08:13:10,997 INFO L226 Difference]: Without dead ends: 32640 [2023-12-16 08:13:11,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:11,015 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 350 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:11,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 421 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:13:11,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32640 states. [2023-12-16 08:13:14,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32640 to 32640. [2023-12-16 08:13:14,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32640 states, 25754 states have (on average 1.261823406072843) internal successors, (32497), 26296 states have internal predecessors, (32497), 3336 states have call successors, (3336), 2322 states have call predecessors, (3336), 3548 states have return successors, (6430), 4022 states have call predecessors, (6430), 3332 states have call successors, (6430) [2023-12-16 08:13:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32640 states to 32640 states and 42263 transitions. [2023-12-16 08:13:14,170 INFO L78 Accepts]: Start accepts. Automaton has 32640 states and 42263 transitions. Word has length 148 [2023-12-16 08:13:14,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:14,170 INFO L495 AbstractCegarLoop]: Abstraction has 32640 states and 42263 transitions. [2023-12-16 08:13:14,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 08:13:14,170 INFO L276 IsEmpty]: Start isEmpty. Operand 32640 states and 42263 transitions. [2023-12-16 08:13:14,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-16 08:13:14,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:14,182 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 08:13:14,185 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 [2023-12-16 08:13:14,382 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 [2023-12-16 08:13:14,383 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:14,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:14,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1713956618, now seen corresponding path program 1 times [2023-12-16 08:13:14,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:14,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040773001] [2023-12-16 08:13:14,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:14,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:14,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:14,385 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) [2023-12-16 08:13:14,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:13:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:14,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:14,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:14,497 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 08:13:14,497 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:14,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:14,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040773001] [2023-12-16 08:13:14,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040773001] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:14,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:14,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:14,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018812083] [2023-12-16 08:13:14,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:14,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:14,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:14,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:14,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:14,498 INFO L87 Difference]: Start difference. First operand 32640 states and 42263 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 08:13:16,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:16,809 INFO L93 Difference]: Finished difference Result 36378 states and 46669 transitions. [2023-12-16 08:13:16,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:16,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 149 [2023-12-16 08:13:16,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:16,903 INFO L225 Difference]: With dead ends: 36378 [2023-12-16 08:13:16,903 INFO L226 Difference]: Without dead ends: 31616 [2023-12-16 08:13:16,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:16,923 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 124 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:16,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 675 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:13:16,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31616 states. [2023-12-16 08:13:19,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31616 to 31612. [2023-12-16 08:13:19,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31612 states, 24882 states have (on average 1.2644080057873162) internal successors, (31461), 25414 states have internal predecessors, (31461), 3252 states have call successors, (3252), 2258 states have call predecessors, (3252), 3476 states have return successors, (6332), 3940 states have call predecessors, (6332), 3248 states have call successors, (6332) [2023-12-16 08:13:19,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31612 states to 31612 states and 41045 transitions. [2023-12-16 08:13:19,752 INFO L78 Accepts]: Start accepts. Automaton has 31612 states and 41045 transitions. Word has length 149 [2023-12-16 08:13:19,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:19,752 INFO L495 AbstractCegarLoop]: Abstraction has 31612 states and 41045 transitions. [2023-12-16 08:13:19,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 08:13:19,752 INFO L276 IsEmpty]: Start isEmpty. Operand 31612 states and 41045 transitions. [2023-12-16 08:13:19,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-16 08:13:19,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:19,769 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:19,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2023-12-16 08:13:19,970 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 [2023-12-16 08:13:19,970 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:19,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:19,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1204972014, now seen corresponding path program 1 times [2023-12-16 08:13:19,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:19,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [875572371] [2023-12-16 08:13:19,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:19,971 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:19,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:19,972 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) [2023-12-16 08:13:19,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-16 08:13:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:20,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:20,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:20,098 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-16 08:13:20,098 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:20,099 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:20,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [875572371] [2023-12-16 08:13:20,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [875572371] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:20,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:20,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:20,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051137274] [2023-12-16 08:13:20,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:20,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:13:20,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:20,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:13:20,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:13:20,100 INFO L87 Difference]: Start difference. First operand 31612 states and 41045 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-16 08:13:21,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:21,917 INFO L93 Difference]: Finished difference Result 47509 states and 62411 transitions. [2023-12-16 08:13:21,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:13:21,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 164 [2023-12-16 08:13:21,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:21,967 INFO L225 Difference]: With dead ends: 47509 [2023-12-16 08:13:21,967 INFO L226 Difference]: Without dead ends: 20949 [2023-12-16 08:13:22,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:22,006 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 357 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:22,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 354 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:13:22,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20949 states. [2023-12-16 08:13:23,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20949 to 20949. [2023-12-16 08:13:23,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20949 states, 16795 states have (on average 1.2556713307532004) internal successors, (21089), 17093 states have internal predecessors, (21089), 2028 states have call successors, (2028), 1362 states have call predecessors, (2028), 2124 states have return successors, (3712), 2494 states have call predecessors, (3712), 2024 states have call successors, (3712) [2023-12-16 08:13:23,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20949 states to 20949 states and 26829 transitions. [2023-12-16 08:13:23,943 INFO L78 Accepts]: Start accepts. Automaton has 20949 states and 26829 transitions. Word has length 164 [2023-12-16 08:13:23,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:23,943 INFO L495 AbstractCegarLoop]: Abstraction has 20949 states and 26829 transitions. [2023-12-16 08:13:23,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-16 08:13:23,943 INFO L276 IsEmpty]: Start isEmpty. Operand 20949 states and 26829 transitions. [2023-12-16 08:13:23,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-16 08:13:23,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:23,956 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:23,962 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 [2023-12-16 08:13:24,159 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 [2023-12-16 08:13:24,160 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:24,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:24,160 INFO L85 PathProgramCache]: Analyzing trace with hash -403484344, now seen corresponding path program 2 times [2023-12-16 08:13:24,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:24,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700155251] [2023-12-16 08:13:24,161 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 08:13:24,161 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:24,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:24,162 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) [2023-12-16 08:13:24,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:13:24,262 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 08:13:24,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 08:13:24,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:24,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:24,282 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 08:13:24,282 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:24,282 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:24,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700155251] [2023-12-16 08:13:24,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700155251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:24,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:24,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:24,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816993513] [2023-12-16 08:13:24,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:24,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:24,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:24,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:24,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:24,284 INFO L87 Difference]: Start difference. First operand 20949 states and 26829 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 08:13:27,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:27,064 INFO L93 Difference]: Finished difference Result 52051 states and 67925 transitions. [2023-12-16 08:13:27,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:27,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 164 [2023-12-16 08:13:27,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:27,150 INFO L225 Difference]: With dead ends: 52051 [2023-12-16 08:13:27,151 INFO L226 Difference]: Without dead ends: 36243 [2023-12-16 08:13:27,176 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 [2023-12-16 08:13:27,176 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 286 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:27,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 486 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:13:27,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36243 states. [2023-12-16 08:13:30,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36243 to 36194. [2023-12-16 08:13:30,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36194 states, 28772 states have (on average 1.2635200889753928) internal successors, (36354), 29236 states have internal predecessors, (36354), 3630 states have call successors, (3630), 2404 states have call predecessors, (3630), 3790 states have return successors, (6793), 4554 states have call predecessors, (6793), 3626 states have call successors, (6793) [2023-12-16 08:13:30,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36194 states to 36194 states and 46777 transitions. [2023-12-16 08:13:30,381 INFO L78 Accepts]: Start accepts. Automaton has 36194 states and 46777 transitions. Word has length 164 [2023-12-16 08:13:30,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:30,382 INFO L495 AbstractCegarLoop]: Abstraction has 36194 states and 46777 transitions. [2023-12-16 08:13:30,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 08:13:30,382 INFO L276 IsEmpty]: Start isEmpty. Operand 36194 states and 46777 transitions. [2023-12-16 08:13:30,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-16 08:13:30,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:30,390 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:30,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-16 08:13:30,590 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 [2023-12-16 08:13:30,591 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:30,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:30,591 INFO L85 PathProgramCache]: Analyzing trace with hash 764286668, now seen corresponding path program 1 times [2023-12-16 08:13:30,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:30,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831657367] [2023-12-16 08:13:30,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:30,592 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:30,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:30,593 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) [2023-12-16 08:13:30,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 [2023-12-16 08:13:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:30,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:30,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:30,694 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 08:13:30,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:30,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:30,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831657367] [2023-12-16 08:13:30,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831657367] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:30,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:30,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:30,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550569925] [2023-12-16 08:13:30,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:30,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:30,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:30,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:30,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:30,696 INFO L87 Difference]: Start difference. First operand 36194 states and 46777 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) Received shutdown request... [2023-12-16 08:13:32,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:32,536 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 [2023-12-16 08:13:32,537 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 103 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:32,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 603 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:13:32,538 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 08:13:32,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2023-12-16 08:13:32,574 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:13:32,574 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:13:32,740 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 [2023-12-16 08:13:32,741 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (36194states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (43352 states constructed, input type IntersectNwa). [2023-12-16 08:13:32,743 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 08:13:32,745 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:32,747 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:13:32,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:13:32 BoogieIcfgContainer [2023-12-16 08:13:32,748 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:13:32,749 INFO L158 Benchmark]: Toolchain (without parser) took 63866.81ms. Allocated memory was 307.2MB in the beginning and 5.4GB in the end (delta: 5.1GB). Free memory was 254.3MB in the beginning and 4.2GB in the end (delta: -4.0GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-16 08:13:32,749 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 198.2MB. Free memory is still 144.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:13:32,749 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.70ms. Allocated memory is still 307.2MB. Free memory was 254.3MB in the beginning and 234.4MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-16 08:13:32,749 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.29ms. Allocated memory is still 307.2MB. Free memory was 234.4MB in the beginning and 231.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 08:13:32,749 INFO L158 Benchmark]: Boogie Preprocessor took 51.88ms. Allocated memory is still 307.2MB. Free memory was 231.2MB in the beginning and 227.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 08:13:32,749 INFO L158 Benchmark]: RCFGBuilder took 689.02ms. Allocated memory is still 307.2MB. Free memory was 227.0MB in the beginning and 251.9MB in the end (delta: -24.9MB). Peak memory consumption was 30.1MB. Max. memory is 8.0GB. [2023-12-16 08:13:32,749 INFO L158 Benchmark]: TraceAbstraction took 62757.68ms. Allocated memory was 307.2MB in the beginning and 5.4GB in the end (delta: 5.1GB). Free memory was 251.4MB in the beginning and 4.2GB in the end (delta: -4.0GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-16 08:13:32,750 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 198.2MB. Free memory is still 144.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 309.70ms. Allocated memory is still 307.2MB. Free memory was 254.3MB in the beginning and 234.4MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.29ms. Allocated memory is still 307.2MB. Free memory was 234.4MB in the beginning and 231.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 51.88ms. Allocated memory is still 307.2MB. Free memory was 231.2MB in the beginning and 227.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 689.02ms. Allocated memory is still 307.2MB. Free memory was 227.0MB in the beginning and 251.9MB in the end (delta: -24.9MB). Peak memory consumption was 30.1MB. Max. memory is 8.0GB. * TraceAbstraction took 62757.68ms. Allocated memory was 307.2MB in the beginning and 5.4GB in the end (delta: 5.1GB). Free memory was 251.4MB in the beginning and 4.2GB in the end (delta: -4.0GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 27]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 27). Cancelled while NwaCegarLoop was constructing difference of abstraction (36194states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (43352 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 599]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 599). Cancelled while NwaCegarLoop was constructing difference of abstraction (36194states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (43352 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 16 procedures, 230 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 62.7s, OverallIterations: 36, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 27.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8332 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8063 mSDsluCounter, 22448 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12661 mSDsCounter, 802 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6669 IncrementalHoareTripleChecker+Invalid, 7471 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 802 mSolverCounterUnsat, 9787 mSDtfsCounter, 6669 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3512 GetRequests, 3419 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36194occurred in iteration=35, InterpolantAutomatonStates: 150, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 23.2s AutomataMinimizationTime, 35 MinimizatonAttempts, 849 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 3521 NumberOfCodeBlocks, 3416 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 3485 ConstructedInterpolants, 0 QuantifiedInterpolants, 5579 SizeOfPredicates, 8 NumberOfNonLiveVariables, 7697 ConjunctsInSsa, 132 ConjunctsInUnsatCore, 36 InterpolantComputations, 36 PerfectInterpolantSequences, 1376/1376 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown