/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.08.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:13:29,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:13:29,875 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 08:13:29,880 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:13:29,881 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:13:29,910 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:13:29,910 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:13:29,910 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:13:29,911 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:13:29,914 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:13:29,914 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:13:29,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:13:29,915 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:13:29,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:13:29,920 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:13:29,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:13:29,921 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:13:29,921 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:13:29,921 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:13:29,921 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:13:29,921 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:13:29,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:13:29,922 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:13:29,922 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:13:29,922 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:13:29,922 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:13:29,922 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:13:29,922 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:13:29,923 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:13:29,923 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:13:29,924 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:13:29,924 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:13:29,924 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:13:29,924 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:13:29,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:13:29,924 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:13:29,924 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:13:29,925 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:13:29,925 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:13:29,925 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:13:29,925 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:13:29,925 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:13:29,925 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:13:29,925 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:13:29,926 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:13:29,926 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:13:29,926 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:13:30,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:13:30,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:13:30,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:13:30,173 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:13:30,174 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:13:30,175 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.08.cil-2.c [2023-12-16 08:13:31,225 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:13:31,429 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:13:31,429 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.08.cil-2.c [2023-12-16 08:13:31,439 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64decce7c/aaa722ae05e1496cb173cd1590cc5533/FLAGd5ccd097c [2023-12-16 08:13:31,450 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64decce7c/aaa722ae05e1496cb173cd1590cc5533 [2023-12-16 08:13:31,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:13:31,453 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:13:31,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:13:31,454 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:13:31,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:13:31,462 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:13:31" (1/1) ... [2023-12-16 08:13:31,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a88b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:31, skipping insertion in model container [2023-12-16 08:13:31,463 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:13:31" (1/1) ... [2023-12-16 08:13:31,513 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:13:31,645 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.08.cil-2.c[911,924] [2023-12-16 08:13:31,714 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.08.cil-2.c[8416,8429] [2023-12-16 08:13:31,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:13:31,802 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:13:31,811 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.08.cil-2.c[911,924] [2023-12-16 08:13:31,825 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.08.cil-2.c[8416,8429] [2023-12-16 08:13:31,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:13:31,890 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:13:31,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:31 WrapperNode [2023-12-16 08:13:31,890 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:13:31,891 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:13:31,891 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:13:31,891 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:13:31,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:31" (1/1) ... [2023-12-16 08:13:31,913 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:31" (1/1) ... [2023-12-16 08:13:31,946 INFO L138 Inliner]: procedures = 72, calls = 86, calls flagged for inlining = 39, calls inlined = 39, statements flattened = 839 [2023-12-16 08:13:31,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:13:31,948 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:13:31,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:13:31,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:13:31,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:31" (1/1) ... [2023-12-16 08:13:31,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:31" (1/1) ... [2023-12-16 08:13:31,964 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:31" (1/1) ... [2023-12-16 08:13:31,980 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 08:13:31,981 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:31" (1/1) ... [2023-12-16 08:13:31,981 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:31" (1/1) ... [2023-12-16 08:13:31,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:31" (1/1) ... [2023-12-16 08:13:32,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:31" (1/1) ... [2023-12-16 08:13:32,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:31" (1/1) ... [2023-12-16 08:13:32,006 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:31" (1/1) ... [2023-12-16 08:13:32,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:13:32,011 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:13:32,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:13:32,011 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:13:32,012 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:31" (1/1) ... [2023-12-16 08:13:32,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:13:32,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:13:32,037 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 08:13:32,051 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 08:13:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:13:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 08:13:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 08:13:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-16 08:13:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-16 08:13:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-16 08:13:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-16 08:13:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-16 08:13:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-16 08:13:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-16 08:13:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-16 08:13:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-16 08:13:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-16 08:13:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-16 08:13:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-16 08:13:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-16 08:13:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-16 08:13:32,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:13:32,078 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-16 08:13:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-16 08:13:32,078 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-16 08:13:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-16 08:13:32,078 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-16 08:13:32,079 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-16 08:13:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-16 08:13:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-16 08:13:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-16 08:13:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-16 08:13:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:13:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:13:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-16 08:13:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-16 08:13:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2023-12-16 08:13:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2023-12-16 08:13:32,209 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:13:32,214 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:13:32,874 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1bv32 == ~q_free~0); [2023-12-16 08:13:32,874 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 08:13:32,936 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:13:33,021 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:13:33,021 INFO L309 CfgBuilder]: Removed 15 assume(true) statements. [2023-12-16 08:13:33,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:13:33 BoogieIcfgContainer [2023-12-16 08:13:33,022 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:13:33,024 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:13:33,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:13:33,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:13:33,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:13:31" (1/3) ... [2023-12-16 08:13:33,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3410b976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:13:33, skipping insertion in model container [2023-12-16 08:13:33,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:13:31" (2/3) ... [2023-12-16 08:13:33,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3410b976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:13:33, skipping insertion in model container [2023-12-16 08:13:33,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:13:33" (3/3) ... [2023-12-16 08:13:33,028 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.08.cil-2.c [2023-12-16 08:13:33,040 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:13:33,041 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 08:13:33,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:13:33,088 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;@d5f2f1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:13:33,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 08:13:33,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 368 states, 310 states have (on average 1.7032258064516128) internal successors, (528), 318 states have internal predecessors, (528), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 08:13:33,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 08:13:33,106 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:33,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:33,107 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:33,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:33,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1701733886, now seen corresponding path program 1 times [2023-12-16 08:13:33,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:33,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592497175] [2023-12-16 08:13:33,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:33,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:33,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:33,134 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 08:13:33,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:33,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 08:13:33,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:33,375 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 08:13:33,375 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:33,376 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:33,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592497175] [2023-12-16 08:13:33,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592497175] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:33,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:33,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 08:13:33,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310303738] [2023-12-16 08:13:33,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:33,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:33,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:33,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:33,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:33,413 INFO L87 Difference]: Start difference. First operand has 368 states, 310 states have (on average 1.7032258064516128) internal successors, (528), 318 states have internal predecessors, (528), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) 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 08:13:34,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:34,248 INFO L93 Difference]: Finished difference Result 822 states and 1355 transitions. [2023-12-16 08:13:34,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:13:34,250 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 08:13:34,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:34,260 INFO L225 Difference]: With dead ends: 822 [2023-12-16 08:13:34,260 INFO L226 Difference]: Without dead ends: 470 [2023-12-16 08:13:34,264 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 08:13:34,266 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 411 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:34,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 1095 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 08:13:34,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-12-16 08:13:34,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 463. [2023-12-16 08:13:34,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 386 states have (on average 1.572538860103627) internal successors, (607), 393 states have internal predecessors, (607), 53 states have call successors, (53), 22 states have call predecessors, (53), 22 states have return successors, (54), 50 states have call predecessors, (54), 49 states have call successors, (54) [2023-12-16 08:13:34,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 714 transitions. [2023-12-16 08:13:34,361 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 714 transitions. Word has length 57 [2023-12-16 08:13:34,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:34,361 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 714 transitions. [2023-12-16 08:13:34,361 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 08:13:34,361 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 714 transitions. [2023-12-16 08:13:34,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 08:13:34,364 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:34,364 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 08:13:34,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 08:13:34,568 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 08:13:34,569 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:34,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:34,569 INFO L85 PathProgramCache]: Analyzing trace with hash -242258882, now seen corresponding path program 1 times [2023-12-16 08:13:34,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:34,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712340985] [2023-12-16 08:13:34,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:34,570 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:13:34,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:34,571 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 08:13:34,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:34,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:13:34,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:34,692 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 08:13:34,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:34,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:34,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712340985] [2023-12-16 08:13:34,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1712340985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:34,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:34,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 08:13:34,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952533039] [2023-12-16 08:13:34,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:34,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:34,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:34,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:34,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:34,695 INFO L87 Difference]: Start difference. First operand 463 states and 714 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:13:35,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:35,454 INFO L93 Difference]: Finished difference Result 874 states and 1329 transitions. [2023-12-16 08:13:35,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:13:35,455 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 08:13:35,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:35,459 INFO L225 Difference]: With dead ends: 874 [2023-12-16 08:13:35,459 INFO L226 Difference]: Without dead ends: 684 [2023-12-16 08:13:35,460 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 08:13:35,461 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 400 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:35,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 1091 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 08:13:35,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2023-12-16 08:13:35,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 676. [2023-12-16 08:13:35,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 551 states have (on average 1.52994555353902) internal successors, (843), 566 states have internal predecessors, (843), 79 states have call successors, (79), 36 states have call predecessors, (79), 44 states have return successors, (100), 78 states have call predecessors, (100), 75 states have call successors, (100) [2023-12-16 08:13:35,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 1022 transitions. [2023-12-16 08:13:35,506 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 1022 transitions. Word has length 57 [2023-12-16 08:13:35,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:35,506 INFO L495 AbstractCegarLoop]: Abstraction has 676 states and 1022 transitions. [2023-12-16 08:13:35,506 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 08:13:35,506 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 1022 transitions. [2023-12-16 08:13:35,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 08:13:35,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:35,508 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 08:13:35,518 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 08:13:35,715 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 08:13:35,716 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:35,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:35,716 INFO L85 PathProgramCache]: Analyzing trace with hash -166420994, now seen corresponding path program 1 times [2023-12-16 08:13:35,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:35,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1706314] [2023-12-16 08:13:35,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:35,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:35,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:35,719 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:13:35,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:35,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:35,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:35,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:13:35,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:35,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:35,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1706314] [2023-12-16 08:13:35,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1706314] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:35,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:35,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:35,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79607538] [2023-12-16 08:13:35,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:35,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:35,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:35,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:35,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:35,822 INFO L87 Difference]: Start difference. First operand 676 states and 1022 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 08:13:35,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:35,911 INFO L93 Difference]: Finished difference Result 1422 states and 2089 transitions. [2023-12-16 08:13:35,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:35,912 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 08:13:35,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:35,915 INFO L225 Difference]: With dead ends: 1422 [2023-12-16 08:13:35,950 INFO L226 Difference]: Without dead ends: 1033 [2023-12-16 08:13:35,951 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 08:13:35,952 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 532 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:35,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 661 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:35,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2023-12-16 08:13:36,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1025. [2023-12-16 08:13:36,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 822 states have (on average 1.4878345498783454) internal successors, (1223), 847 states have internal predecessors, (1223), 119 states have call successors, (119), 64 states have call predecessors, (119), 82 states have return successors, (157), 118 states have call predecessors, (157), 115 states have call successors, (157) [2023-12-16 08:13:36,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1499 transitions. [2023-12-16 08:13:36,017 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1499 transitions. Word has length 57 [2023-12-16 08:13:36,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:36,017 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1499 transitions. [2023-12-16 08:13:36,017 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 08:13:36,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1499 transitions. [2023-12-16 08:13:36,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:13:36,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:36,021 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] [2023-12-16 08:13:36,027 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 (4)] Forceful destruction successful, exit code 0 [2023-12-16 08:13:36,225 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 08:13:36,225 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:36,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:36,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1759068249, now seen corresponding path program 1 times [2023-12-16 08:13:36,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:36,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952452522] [2023-12-16 08:13:36,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:36,226 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 08:13:36,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:36,228 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 08:13:36,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:36,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:13:36,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:36,329 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 08:13:36,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:36,330 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:36,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952452522] [2023-12-16 08:13:36,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952452522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:36,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:36,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:13:36,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532810495] [2023-12-16 08:13:36,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:36,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:13:36,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:36,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:13:36,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:13:36,332 INFO L87 Difference]: Start difference. First operand 1025 states and 1499 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 08:13:36,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:36,483 INFO L93 Difference]: Finished difference Result 1799 states and 2603 transitions. [2023-12-16 08:13:36,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:13:36,484 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 08:13:36,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:36,488 INFO L225 Difference]: With dead ends: 1799 [2023-12-16 08:13:36,488 INFO L226 Difference]: Without dead ends: 1061 [2023-12-16 08:13:36,490 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 08:13:36,491 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 6 mSDsluCounter, 2086 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2609 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:36,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2609 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:36,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2023-12-16 08:13:36,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1041. [2023-12-16 08:13:36,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 834 states have (on average 1.476019184652278) internal successors, (1231), 859 states have internal predecessors, (1231), 119 states have call successors, (119), 64 states have call predecessors, (119), 86 states have return successors, (161), 122 states have call predecessors, (161), 115 states have call successors, (161) [2023-12-16 08:13:36,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1511 transitions. [2023-12-16 08:13:36,542 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1511 transitions. Word has length 58 [2023-12-16 08:13:36,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:36,543 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1511 transitions. [2023-12-16 08:13:36,543 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 08:13:36,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1511 transitions. [2023-12-16 08:13:36,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:13:36,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:36,545 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 08:13:36,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 08:13:36,748 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 08:13:36,749 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:36,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:36,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1831454807, now seen corresponding path program 1 times [2023-12-16 08:13:36,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:36,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [669401882] [2023-12-16 08:13:36,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:36,750 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:13:36,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:36,751 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 08:13:36,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:36,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:36,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:36,862 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 08:13:36,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:36,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:36,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [669401882] [2023-12-16 08:13:36,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [669401882] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:36,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:36,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:36,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572227607] [2023-12-16 08:13:36,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:36,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:36,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:36,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:36,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:36,864 INFO L87 Difference]: Start difference. First operand 1041 states and 1511 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 08:13:36,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:36,968 INFO L93 Difference]: Finished difference Result 2493 states and 3527 transitions. [2023-12-16 08:13:36,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:36,968 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 08:13:36,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:36,974 INFO L225 Difference]: With dead ends: 2493 [2023-12-16 08:13:36,975 INFO L226 Difference]: Without dead ends: 1739 [2023-12-16 08:13:36,976 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 08:13:36,977 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 521 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:36,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 637 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:13:36,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2023-12-16 08:13:37,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1731. [2023-12-16 08:13:37,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1364 states have (on average 1.4259530791788857) internal successors, (1945), 1409 states have internal predecessors, (1945), 199 states have call successors, (199), 120 states have call predecessors, (199), 166 states have return successors, (279), 206 states have call predecessors, (279), 195 states have call successors, (279) [2023-12-16 08:13:37,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2423 transitions. [2023-12-16 08:13:37,049 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2423 transitions. Word has length 58 [2023-12-16 08:13:37,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:37,049 INFO L495 AbstractCegarLoop]: Abstraction has 1731 states and 2423 transitions. [2023-12-16 08:13:37,050 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 08:13:37,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2423 transitions. [2023-12-16 08:13:37,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 08:13:37,052 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:37,088 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 08:13:37,096 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 08:13:37,288 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 08:13:37,289 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:37,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:37,289 INFO L85 PathProgramCache]: Analyzing trace with hash -619326799, now seen corresponding path program 1 times [2023-12-16 08:13:37,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:37,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431841048] [2023-12-16 08:13:37,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:37,290 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:37,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:37,291 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 08:13:37,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:37,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:13:37,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:37,398 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 08:13:37,399 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:37,399 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:37,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431841048] [2023-12-16 08:13:37,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431841048] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:37,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:37,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:13:37,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354532762] [2023-12-16 08:13:37,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:37,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:13:37,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:37,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:13:37,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:13:37,400 INFO L87 Difference]: Start difference. First operand 1731 states and 2423 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 08:13:37,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:37,569 INFO L93 Difference]: Finished difference Result 3223 states and 4479 transitions. [2023-12-16 08:13:37,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:13:37,570 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 08:13:37,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:37,576 INFO L225 Difference]: With dead ends: 3223 [2023-12-16 08:13:37,576 INFO L226 Difference]: Without dead ends: 1779 [2023-12-16 08:13:37,579 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 08:13:37,580 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 3 mSDsluCounter, 2086 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2609 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:37,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2609 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:37,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2023-12-16 08:13:37,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 1763. [2023-12-16 08:13:37,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1763 states, 1388 states have (on average 1.4128242074927955) internal successors, (1961), 1433 states have internal predecessors, (1961), 199 states have call successors, (199), 120 states have call predecessors, (199), 174 states have return successors, (287), 214 states have call predecessors, (287), 195 states have call successors, (287) [2023-12-16 08:13:37,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2447 transitions. [2023-12-16 08:13:37,638 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2447 transitions. Word has length 73 [2023-12-16 08:13:37,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:37,638 INFO L495 AbstractCegarLoop]: Abstraction has 1763 states and 2447 transitions. [2023-12-16 08:13:37,638 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 08:13:37,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2447 transitions. [2023-12-16 08:13:37,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 08:13:37,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:37,640 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 08:13:37,645 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 08:13:37,843 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 08:13:37,844 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:37,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:37,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1830273331, now seen corresponding path program 1 times [2023-12-16 08:13:37,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:37,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953050421] [2023-12-16 08:13:37,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:37,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:13:37,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:37,846 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 08:13:37,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:37,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:37,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:37,988 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 08:13:37,989 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:37,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:37,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953050421] [2023-12-16 08:13:37,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953050421] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:37,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:37,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:37,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322483264] [2023-12-16 08:13:37,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:37,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:13:37,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:37,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:13:37,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:13:37,991 INFO L87 Difference]: Start difference. First operand 1763 states and 2447 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 08:13:38,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:38,532 INFO L93 Difference]: Finished difference Result 4679 states and 6430 transitions. [2023-12-16 08:13:38,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:13:38,533 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 08:13:38,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:38,546 INFO L225 Difference]: With dead ends: 4679 [2023-12-16 08:13:38,546 INFO L226 Difference]: Without dead ends: 3207 [2023-12-16 08:13:38,549 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 08:13:38,550 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 764 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:38,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 575 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:13:38,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2023-12-16 08:13:38,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 3203. [2023-12-16 08:13:38,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3203 states, 2472 states have (on average 1.3661003236245954) internal successors, (3377), 2565 states have internal predecessors, (3377), 379 states have call successors, (379), 232 states have call predecessors, (379), 350 states have return successors, (624), 414 states have call predecessors, (624), 375 states have call successors, (624) [2023-12-16 08:13:38,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3203 states to 3203 states and 4380 transitions. [2023-12-16 08:13:38,687 INFO L78 Accepts]: Start accepts. Automaton has 3203 states and 4380 transitions. Word has length 73 [2023-12-16 08:13:38,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:38,687 INFO L495 AbstractCegarLoop]: Abstraction has 3203 states and 4380 transitions. [2023-12-16 08:13:38,687 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 08:13:38,687 INFO L276 IsEmpty]: Start isEmpty. Operand 3203 states and 4380 transitions. [2023-12-16 08:13:38,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-16 08:13:38,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:38,690 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 08:13:38,694 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 08:13:38,894 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 08:13:38,895 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:38,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:38,895 INFO L85 PathProgramCache]: Analyzing trace with hash -530800389, now seen corresponding path program 1 times [2023-12-16 08:13:38,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:38,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [175128591] [2023-12-16 08:13:38,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:38,896 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:13:38,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:38,897 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 08:13:38,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:38,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:38,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:38,990 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 08:13:38,990 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:38,990 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:38,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [175128591] [2023-12-16 08:13:38,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [175128591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:38,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:38,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:38,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324037757] [2023-12-16 08:13:38,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:38,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:38,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:38,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:38,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:38,991 INFO L87 Difference]: Start difference. First operand 3203 states and 4380 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 08:13:39,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:39,311 INFO L93 Difference]: Finished difference Result 8871 states and 12009 transitions. [2023-12-16 08:13:39,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:39,312 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 08:13:39,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:39,330 INFO L225 Difference]: With dead ends: 8871 [2023-12-16 08:13:39,330 INFO L226 Difference]: Without dead ends: 4627 [2023-12-16 08:13:39,339 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 08:13:39,340 INFO L413 NwaCegarLoop]: 627 mSDtfsCounter, 110 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:39,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1145 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:39,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4627 states. [2023-12-16 08:13:39,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4627 to 4627. [2023-12-16 08:13:39,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4627 states, 3552 states have (on average 1.3482545045045045) internal successors, (4789), 3685 states have internal predecessors, (4789), 543 states have call successors, (543), 344 states have call predecessors, (543), 530 states have return successors, (956), 606 states have call predecessors, (956), 539 states have call successors, (956) [2023-12-16 08:13:39,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4627 states to 4627 states and 6288 transitions. [2023-12-16 08:13:39,564 INFO L78 Accepts]: Start accepts. Automaton has 4627 states and 6288 transitions. Word has length 75 [2023-12-16 08:13:39,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:39,564 INFO L495 AbstractCegarLoop]: Abstraction has 4627 states and 6288 transitions. [2023-12-16 08:13:39,565 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 08:13:39,565 INFO L276 IsEmpty]: Start isEmpty. Operand 4627 states and 6288 transitions. [2023-12-16 08:13:39,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:13:39,577 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:39,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:39,580 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 08:13:39,781 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 08:13:39,781 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:39,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:39,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1167941009, now seen corresponding path program 1 times [2023-12-16 08:13:39,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:39,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411589474] [2023-12-16 08:13:39,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:39,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:13:39,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:39,783 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 08:13:39,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:39,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:39,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:39,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:13:39,913 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:39,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:39,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411589474] [2023-12-16 08:13:39,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1411589474] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:39,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:39,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:39,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793075990] [2023-12-16 08:13:39,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:39,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:39,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:39,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:39,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:39,915 INFO L87 Difference]: Start difference. First operand 4627 states and 6288 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 08:13:40,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:40,068 INFO L93 Difference]: Finished difference Result 4882 states and 6698 transitions. [2023-12-16 08:13:40,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:40,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 122 [2023-12-16 08:13:40,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:40,086 INFO L225 Difference]: With dead ends: 4882 [2023-12-16 08:13:40,086 INFO L226 Difference]: Without dead ends: 4627 [2023-12-16 08:13:40,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 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 08:13:40,091 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 412 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:40,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 657 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:40,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4627 states. [2023-12-16 08:13:40,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4627 to 4627. [2023-12-16 08:13:40,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4627 states, 3552 states have (on average 1.347972972972973) internal successors, (4788), 3685 states have internal predecessors, (4788), 543 states have call successors, (543), 344 states have call predecessors, (543), 530 states have return successors, (956), 606 states have call predecessors, (956), 539 states have call successors, (956) [2023-12-16 08:13:40,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4627 states to 4627 states and 6287 transitions. [2023-12-16 08:13:40,322 INFO L78 Accepts]: Start accepts. Automaton has 4627 states and 6287 transitions. Word has length 122 [2023-12-16 08:13:40,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:40,322 INFO L495 AbstractCegarLoop]: Abstraction has 4627 states and 6287 transitions. [2023-12-16 08:13:40,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 08:13:40,322 INFO L276 IsEmpty]: Start isEmpty. Operand 4627 states and 6287 transitions. [2023-12-16 08:13:40,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:13:40,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:40,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:40,339 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 08:13:40,537 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 08:13:40,537 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:40,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:40,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1125140017, now seen corresponding path program 1 times [2023-12-16 08:13:40,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:40,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843581843] [2023-12-16 08:13:40,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:40,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:40,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:40,539 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 08:13:40,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:40,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:40,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:40,699 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 08:13:40,700 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:40,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:40,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843581843] [2023-12-16 08:13:40,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [843581843] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:40,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:40,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:40,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553261313] [2023-12-16 08:13:40,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:40,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:40,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:40,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:40,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:40,701 INFO L87 Difference]: Start difference. First operand 4627 states and 6287 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 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 08:13:41,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:41,410 INFO L93 Difference]: Finished difference Result 5154 states and 7144 transitions. [2023-12-16 08:13:41,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:13:41,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 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 122 [2023-12-16 08:13:41,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:41,425 INFO L225 Difference]: With dead ends: 5154 [2023-12-16 08:13:41,425 INFO L226 Difference]: Without dead ends: 4907 [2023-12-16 08:13:41,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 08:13:41,427 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 967 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:41,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1255 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:13:41,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4907 states. [2023-12-16 08:13:41,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4907 to 4884. [2023-12-16 08:13:41,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4884 states, 3785 states have (on average 1.3659180977542933) internal successors, (5170), 3919 states have internal predecessors, (5170), 560 states have call successors, (560), 350 states have call predecessors, (560), 537 states have return successors, (974), 623 states have call predecessors, (974), 556 states have call successors, (974) [2023-12-16 08:13:41,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4884 states to 4884 states and 6704 transitions. [2023-12-16 08:13:41,604 INFO L78 Accepts]: Start accepts. Automaton has 4884 states and 6704 transitions. Word has length 122 [2023-12-16 08:13:41,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:41,604 INFO L495 AbstractCegarLoop]: Abstraction has 4884 states and 6704 transitions. [2023-12-16 08:13:41,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 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 08:13:41,604 INFO L276 IsEmpty]: Start isEmpty. Operand 4884 states and 6704 transitions. [2023-12-16 08:13:41,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:13:41,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:41,614 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:41,618 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 08:13:41,818 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 08:13:41,819 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:41,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:41,820 INFO L85 PathProgramCache]: Analyzing trace with hash 849214705, now seen corresponding path program 1 times [2023-12-16 08:13:41,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:41,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937908506] [2023-12-16 08:13:41,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:41,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:13:41,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:41,821 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 08:13:41,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:41,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:41,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:42,013 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 08:13:42,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:42,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:42,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937908506] [2023-12-16 08:13:42,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937908506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:42,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:42,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:42,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534868665] [2023-12-16 08:13:42,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:42,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:42,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:42,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:42,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:42,015 INFO L87 Difference]: Start difference. First operand 4884 states and 6704 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:42,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:42,588 INFO L93 Difference]: Finished difference Result 5388 states and 7523 transitions. [2023-12-16 08:13:42,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:13:42,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:13:42,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:42,613 INFO L225 Difference]: With dead ends: 5388 [2023-12-16 08:13:42,614 INFO L226 Difference]: Without dead ends: 4884 [2023-12-16 08:13:42,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 08:13:42,618 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 739 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:42,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 852 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:13:42,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4884 states. [2023-12-16 08:13:42,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4884 to 4884. [2023-12-16 08:13:42,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4884 states, 3785 states have (on average 1.3640686922060765) internal successors, (5163), 3919 states have internal predecessors, (5163), 560 states have call successors, (560), 350 states have call predecessors, (560), 537 states have return successors, (974), 623 states have call predecessors, (974), 556 states have call successors, (974) [2023-12-16 08:13:42,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4884 states to 4884 states and 6697 transitions. [2023-12-16 08:13:42,872 INFO L78 Accepts]: Start accepts. Automaton has 4884 states and 6697 transitions. Word has length 122 [2023-12-16 08:13:42,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:42,873 INFO L495 AbstractCegarLoop]: Abstraction has 4884 states and 6697 transitions. [2023-12-16 08:13:42,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:42,873 INFO L276 IsEmpty]: Start isEmpty. Operand 4884 states and 6697 transitions. [2023-12-16 08:13:42,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:13:42,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:42,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:42,900 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 08:13:43,087 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 08:13:43,088 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:43,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:43,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1394503217, now seen corresponding path program 1 times [2023-12-16 08:13:43,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:43,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388328266] [2023-12-16 08:13:43,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:43,089 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:13:43,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:43,090 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 08:13:43,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:43,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:43,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:43,265 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 08:13:43,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:43,266 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:43,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388328266] [2023-12-16 08:13:43,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388328266] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:43,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:43,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:43,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841983270] [2023-12-16 08:13:43,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:43,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:43,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:43,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:43,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:43,267 INFO L87 Difference]: Start difference. First operand 4884 states and 6697 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:43,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:43,809 INFO L93 Difference]: Finished difference Result 5388 states and 7509 transitions. [2023-12-16 08:13:43,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:13:43,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:13:43,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:43,823 INFO L225 Difference]: With dead ends: 5388 [2023-12-16 08:13:43,823 INFO L226 Difference]: Without dead ends: 4884 [2023-12-16 08:13:43,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 08:13:43,826 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 733 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:43,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 845 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:13:43,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4884 states. [2023-12-16 08:13:44,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4884 to 4884. [2023-12-16 08:13:44,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4884 states, 3785 states have (on average 1.36221928665786) internal successors, (5156), 3919 states have internal predecessors, (5156), 560 states have call successors, (560), 350 states have call predecessors, (560), 537 states have return successors, (974), 623 states have call predecessors, (974), 556 states have call successors, (974) [2023-12-16 08:13:44,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4884 states to 4884 states and 6690 transitions. [2023-12-16 08:13:44,049 INFO L78 Accepts]: Start accepts. Automaton has 4884 states and 6690 transitions. Word has length 122 [2023-12-16 08:13:44,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:44,050 INFO L495 AbstractCegarLoop]: Abstraction has 4884 states and 6690 transitions. [2023-12-16 08:13:44,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:44,050 INFO L276 IsEmpty]: Start isEmpty. Operand 4884 states and 6690 transitions. [2023-12-16 08:13:44,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:13:44,062 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:44,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:44,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 08:13:44,267 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 08:13:44,267 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:44,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:44,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1412093169, now seen corresponding path program 1 times [2023-12-16 08:13:44,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:44,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387468919] [2023-12-16 08:13:44,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:44,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:44,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:44,269 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 08:13:44,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 08:13:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:44,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:44,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:44,424 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 08:13:44,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:44,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:44,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387468919] [2023-12-16 08:13:44,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387468919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:44,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:44,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:44,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575216637] [2023-12-16 08:13:44,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:44,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:44,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:44,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:44,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:44,426 INFO L87 Difference]: Start difference. First operand 4884 states and 6690 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:45,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:45,023 INFO L93 Difference]: Finished difference Result 5388 states and 7495 transitions. [2023-12-16 08:13:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:13:45,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:13:45,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:45,036 INFO L225 Difference]: With dead ends: 5388 [2023-12-16 08:13:45,036 INFO L226 Difference]: Without dead ends: 4884 [2023-12-16 08:13:45,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 08:13:45,039 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 726 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:45,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 838 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:13:45,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4884 states. [2023-12-16 08:13:45,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4884 to 4884. [2023-12-16 08:13:45,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4884 states, 3785 states have (on average 1.3603698811096434) internal successors, (5149), 3919 states have internal predecessors, (5149), 560 states have call successors, (560), 350 states have call predecessors, (560), 537 states have return successors, (974), 623 states have call predecessors, (974), 556 states have call successors, (974) [2023-12-16 08:13:45,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4884 states to 4884 states and 6683 transitions. [2023-12-16 08:13:45,347 INFO L78 Accepts]: Start accepts. Automaton has 4884 states and 6683 transitions. Word has length 122 [2023-12-16 08:13:45,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:45,348 INFO L495 AbstractCegarLoop]: Abstraction has 4884 states and 6683 transitions. [2023-12-16 08:13:45,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:45,348 INFO L276 IsEmpty]: Start isEmpty. Operand 4884 states and 6683 transitions. [2023-12-16 08:13:45,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:13:45,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:45,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:45,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 08:13:45,562 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 08:13:45,563 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:45,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:45,563 INFO L85 PathProgramCache]: Analyzing trace with hash 379710385, now seen corresponding path program 1 times [2023-12-16 08:13:45,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:45,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792561725] [2023-12-16 08:13:45,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:45,564 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:13:45,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:45,565 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 08:13:45,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 08:13:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:45,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:45,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:45,730 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 08:13:45,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:45,730 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:45,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792561725] [2023-12-16 08:13:45,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [792561725] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:45,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:45,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:45,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843223273] [2023-12-16 08:13:45,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:45,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:45,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:45,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:45,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:45,732 INFO L87 Difference]: Start difference. First operand 4884 states and 6683 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:46,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:46,384 INFO L93 Difference]: Finished difference Result 5388 states and 7481 transitions. [2023-12-16 08:13:46,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:13:46,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:13:46,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:46,398 INFO L225 Difference]: With dead ends: 5388 [2023-12-16 08:13:46,398 INFO L226 Difference]: Without dead ends: 4884 [2023-12-16 08:13:46,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 08:13:46,402 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 720 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:46,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 831 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:13:46,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4884 states. [2023-12-16 08:13:46,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4884 to 4884. [2023-12-16 08:13:46,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4884 states, 3785 states have (on average 1.3585204755614266) internal successors, (5142), 3919 states have internal predecessors, (5142), 560 states have call successors, (560), 350 states have call predecessors, (560), 537 states have return successors, (974), 623 states have call predecessors, (974), 556 states have call successors, (974) [2023-12-16 08:13:46,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4884 states to 4884 states and 6676 transitions. [2023-12-16 08:13:46,691 INFO L78 Accepts]: Start accepts. Automaton has 4884 states and 6676 transitions. Word has length 122 [2023-12-16 08:13:46,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:46,691 INFO L495 AbstractCegarLoop]: Abstraction has 4884 states and 6676 transitions. [2023-12-16 08:13:46,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:46,691 INFO L276 IsEmpty]: Start isEmpty. Operand 4884 states and 6676 transitions. [2023-12-16 08:13:46,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:13:46,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:46,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:46,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 08:13:46,905 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 08:13:46,905 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:46,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:46,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1316160271, now seen corresponding path program 1 times [2023-12-16 08:13:46,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:46,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828235449] [2023-12-16 08:13:46,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:46,906 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:13:46,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:46,907 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 08:13:46,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:47,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:47,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:47,063 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 08:13:47,063 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:47,063 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:47,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828235449] [2023-12-16 08:13:47,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828235449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:47,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:47,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:47,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599556627] [2023-12-16 08:13:47,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:47,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:47,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:47,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:47,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:47,065 INFO L87 Difference]: Start difference. First operand 4884 states and 6676 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:47,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:47,727 INFO L93 Difference]: Finished difference Result 5388 states and 7467 transitions. [2023-12-16 08:13:47,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:13:47,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:13:47,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:47,743 INFO L225 Difference]: With dead ends: 5388 [2023-12-16 08:13:47,743 INFO L226 Difference]: Without dead ends: 4884 [2023-12-16 08:13:47,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 08:13:47,747 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 714 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:47,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 824 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:13:47,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4884 states. [2023-12-16 08:13:47,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4884 to 4884. [2023-12-16 08:13:48,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4884 states, 3785 states have (on average 1.35667107001321) internal successors, (5135), 3919 states have internal predecessors, (5135), 560 states have call successors, (560), 350 states have call predecessors, (560), 537 states have return successors, (974), 623 states have call predecessors, (974), 556 states have call successors, (974) [2023-12-16 08:13:48,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4884 states to 4884 states and 6669 transitions. [2023-12-16 08:13:48,014 INFO L78 Accepts]: Start accepts. Automaton has 4884 states and 6669 transitions. Word has length 122 [2023-12-16 08:13:48,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:48,014 INFO L495 AbstractCegarLoop]: Abstraction has 4884 states and 6669 transitions. [2023-12-16 08:13:48,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:48,015 INFO L276 IsEmpty]: Start isEmpty. Operand 4884 states and 6669 transitions. [2023-12-16 08:13:48,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:13:48,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:48,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:48,032 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 08:13:48,231 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 08:13:48,232 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:48,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:48,232 INFO L85 PathProgramCache]: Analyzing trace with hash -285119373, now seen corresponding path program 1 times [2023-12-16 08:13:48,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:48,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259973986] [2023-12-16 08:13:48,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:48,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:13:48,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:48,234 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 08:13:48,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:48,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:48,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:48,385 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 08:13:48,385 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:48,385 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:48,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259973986] [2023-12-16 08:13:48,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259973986] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:48,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:48,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:48,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028519089] [2023-12-16 08:13:48,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:48,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:48,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:48,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:48,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:48,387 INFO L87 Difference]: Start difference. First operand 4884 states and 6669 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:49,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:49,124 INFO L93 Difference]: Finished difference Result 5388 states and 7453 transitions. [2023-12-16 08:13:49,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:13:49,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:13:49,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:49,136 INFO L225 Difference]: With dead ends: 5388 [2023-12-16 08:13:49,137 INFO L226 Difference]: Without dead ends: 4884 [2023-12-16 08:13:49,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 08:13:49,140 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 708 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:49,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 817 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:13:49,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4884 states. [2023-12-16 08:13:49,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4884 to 4884. [2023-12-16 08:13:49,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4884 states, 3785 states have (on average 1.3548216644649933) internal successors, (5128), 3919 states have internal predecessors, (5128), 560 states have call successors, (560), 350 states have call predecessors, (560), 537 states have return successors, (974), 623 states have call predecessors, (974), 556 states have call successors, (974) [2023-12-16 08:13:49,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4884 states to 4884 states and 6662 transitions. [2023-12-16 08:13:49,455 INFO L78 Accepts]: Start accepts. Automaton has 4884 states and 6662 transitions. Word has length 122 [2023-12-16 08:13:49,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:49,455 INFO L495 AbstractCegarLoop]: Abstraction has 4884 states and 6662 transitions. [2023-12-16 08:13:49,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:49,455 INFO L276 IsEmpty]: Start isEmpty. Operand 4884 states and 6662 transitions. [2023-12-16 08:13:49,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:13:49,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:49,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:49,472 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 08:13:49,672 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 08:13:49,673 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:49,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:49,673 INFO L85 PathProgramCache]: Analyzing trace with hash -805319245, now seen corresponding path program 1 times [2023-12-16 08:13:49,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:49,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569721467] [2023-12-16 08:13:49,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:49,674 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 08:13:49,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:49,675 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 08:13:49,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:49,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:49,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:49,827 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 08:13:49,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:49,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:49,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569721467] [2023-12-16 08:13:49,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569721467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:49,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:49,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:49,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473480176] [2023-12-16 08:13:49,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:49,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:49,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:49,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:49,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:49,829 INFO L87 Difference]: Start difference. First operand 4884 states and 6662 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:50,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:50,501 INFO L93 Difference]: Finished difference Result 5388 states and 7439 transitions. [2023-12-16 08:13:50,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:13:50,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:13:50,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:50,532 INFO L225 Difference]: With dead ends: 5388 [2023-12-16 08:13:50,532 INFO L226 Difference]: Without dead ends: 4884 [2023-12-16 08:13:50,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 08:13:50,536 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 702 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:50,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 810 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:13:50,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4884 states. [2023-12-16 08:13:50,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4884 to 4884. [2023-12-16 08:13:50,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4884 states, 3785 states have (on average 1.3529722589167767) internal successors, (5121), 3919 states have internal predecessors, (5121), 560 states have call successors, (560), 350 states have call predecessors, (560), 537 states have return successors, (974), 623 states have call predecessors, (974), 556 states have call successors, (974) [2023-12-16 08:13:50,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4884 states to 4884 states and 6655 transitions. [2023-12-16 08:13:50,911 INFO L78 Accepts]: Start accepts. Automaton has 4884 states and 6655 transitions. Word has length 122 [2023-12-16 08:13:50,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:50,911 INFO L495 AbstractCegarLoop]: Abstraction has 4884 states and 6655 transitions. [2023-12-16 08:13:50,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:50,911 INFO L276 IsEmpty]: Start isEmpty. Operand 4884 states and 6655 transitions. [2023-12-16 08:13:50,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:13:50,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:50,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:50,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 08:13:51,127 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 08:13:51,128 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:51,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:51,129 INFO L85 PathProgramCache]: Analyzing trace with hash 286278771, now seen corresponding path program 1 times [2023-12-16 08:13:51,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:51,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294725030] [2023-12-16 08:13:51,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:51,129 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:13:51,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:51,130 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 08:13:51,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 08:13:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:51,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:51,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:51,297 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 08:13:51,298 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:51,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:51,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294725030] [2023-12-16 08:13:51,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294725030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:51,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:51,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:51,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391285916] [2023-12-16 08:13:51,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:51,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:51,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:51,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:51,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:51,301 INFO L87 Difference]: Start difference. First operand 4884 states and 6655 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:52,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:52,150 INFO L93 Difference]: Finished difference Result 5506 states and 7617 transitions. [2023-12-16 08:13:52,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:13:52,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:13:52,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:52,164 INFO L225 Difference]: With dead ends: 5506 [2023-12-16 08:13:52,164 INFO L226 Difference]: Without dead ends: 5002 [2023-12-16 08:13:52,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 08:13:52,167 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 774 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:52,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 804 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:13:52,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5002 states. [2023-12-16 08:13:52,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5002 to 5002. [2023-12-16 08:13:52,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5002 states, 3897 states have (on average 1.3543751603797793) internal successors, (5278), 4031 states have internal predecessors, (5278), 562 states have call successors, (562), 354 states have call predecessors, (562), 541 states have return successors, (976), 625 states have call predecessors, (976), 558 states have call successors, (976) [2023-12-16 08:13:52,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5002 states to 5002 states and 6816 transitions. [2023-12-16 08:13:52,530 INFO L78 Accepts]: Start accepts. Automaton has 5002 states and 6816 transitions. Word has length 122 [2023-12-16 08:13:52,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:52,530 INFO L495 AbstractCegarLoop]: Abstraction has 5002 states and 6816 transitions. [2023-12-16 08:13:52,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:52,530 INFO L276 IsEmpty]: Start isEmpty. Operand 5002 states and 6816 transitions. [2023-12-16 08:13:52,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:13:52,544 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:52,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:52,551 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 08:13:52,751 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 08:13:52,752 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:52,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:52,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1152775603, now seen corresponding path program 1 times [2023-12-16 08:13:52,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:52,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897587733] [2023-12-16 08:13:52,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:52,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:13:52,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:52,754 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 08:13:52,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:52,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:52,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:52,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:13:52,916 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:52,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:52,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897587733] [2023-12-16 08:13:52,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897587733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:52,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:52,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:52,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325700856] [2023-12-16 08:13:52,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:52,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:52,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:52,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:52,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:52,918 INFO L87 Difference]: Start difference. First operand 5002 states and 6816 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:53,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:53,658 INFO L93 Difference]: Finished difference Result 5742 states and 7939 transitions. [2023-12-16 08:13:53,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:13:53,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:13:53,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:53,671 INFO L225 Difference]: With dead ends: 5742 [2023-12-16 08:13:53,671 INFO L226 Difference]: Without dead ends: 5120 [2023-12-16 08:13:53,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 08:13:53,675 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 767 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:53,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 797 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:13:53,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5120 states. [2023-12-16 08:13:54,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5120 to 5120. [2023-12-16 08:13:54,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5120 states, 4009 states have (on average 1.3547019206784734) internal successors, (5431), 4143 states have internal predecessors, (5431), 564 states have call successors, (564), 358 states have call predecessors, (564), 545 states have return successors, (978), 627 states have call predecessors, (978), 560 states have call successors, (978) [2023-12-16 08:13:54,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5120 states to 5120 states and 6973 transitions. [2023-12-16 08:13:54,055 INFO L78 Accepts]: Start accepts. Automaton has 5120 states and 6973 transitions. Word has length 122 [2023-12-16 08:13:54,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:54,055 INFO L495 AbstractCegarLoop]: Abstraction has 5120 states and 6973 transitions. [2023-12-16 08:13:54,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:54,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5120 states and 6973 transitions. [2023-12-16 08:13:54,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:13:54,065 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:54,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:54,072 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 08:13:54,269 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 08:13:54,270 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:54,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:54,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1289047762, now seen corresponding path program 1 times [2023-12-16 08:13:54,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:54,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532988981] [2023-12-16 08:13:54,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:54,271 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:13:54,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:54,272 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 08:13:54,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:54,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:54,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:54,419 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 08:13:54,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:54,420 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:54,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532988981] [2023-12-16 08:13:54,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532988981] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:54,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:54,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:54,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473008826] [2023-12-16 08:13:54,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:54,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:54,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:54,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:54,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:54,421 INFO L87 Difference]: Start difference. First operand 5120 states and 6973 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:55,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:55,180 INFO L93 Difference]: Finished difference Result 5978 states and 8253 transitions. [2023-12-16 08:13:55,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:13:55,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:13:55,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:55,191 INFO L225 Difference]: With dead ends: 5978 [2023-12-16 08:13:55,191 INFO L226 Difference]: Without dead ends: 5238 [2023-12-16 08:13:55,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 08:13:55,198 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 760 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:55,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 790 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:13:55,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5238 states. [2023-12-16 08:13:55,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5238 to 5238. [2023-12-16 08:13:55,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5238 states, 4121 states have (on average 1.3540402814850765) internal successors, (5580), 4255 states have internal predecessors, (5580), 566 states have call successors, (566), 362 states have call predecessors, (566), 549 states have return successors, (980), 629 states have call predecessors, (980), 562 states have call successors, (980) [2023-12-16 08:13:55,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5238 states to 5238 states and 7126 transitions. [2023-12-16 08:13:55,603 INFO L78 Accepts]: Start accepts. Automaton has 5238 states and 7126 transitions. Word has length 122 [2023-12-16 08:13:55,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:55,603 INFO L495 AbstractCegarLoop]: Abstraction has 5238 states and 7126 transitions. [2023-12-16 08:13:55,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:55,603 INFO L276 IsEmpty]: Start isEmpty. Operand 5238 states and 7126 transitions. [2023-12-16 08:13:55,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:13:55,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:55,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:55,621 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 08:13:55,818 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 08:13:55,819 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:55,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:55,819 INFO L85 PathProgramCache]: Analyzing trace with hash 2109338289, now seen corresponding path program 1 times [2023-12-16 08:13:55,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:55,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827674748] [2023-12-16 08:13:55,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:55,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:13:55,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:55,821 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 08:13:55,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:55,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:55,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:55,975 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 08:13:55,975 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:55,975 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:55,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827674748] [2023-12-16 08:13:55,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827674748] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:55,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:55,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:55,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580296436] [2023-12-16 08:13:55,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:55,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:55,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:55,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:55,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:55,977 INFO L87 Difference]: Start difference. First operand 5238 states and 7126 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:56,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:56,896 INFO L93 Difference]: Finished difference Result 6214 states and 8559 transitions. [2023-12-16 08:13:56,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:13:56,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:13:56,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:56,908 INFO L225 Difference]: With dead ends: 6214 [2023-12-16 08:13:56,908 INFO L226 Difference]: Without dead ends: 5356 [2023-12-16 08:13:56,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 08:13:56,912 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 753 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:56,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 783 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:13:56,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5356 states. [2023-12-16 08:13:57,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5356 to 5356. [2023-12-16 08:13:57,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 4233 states have (on average 1.3524686983227026) internal successors, (5725), 4367 states have internal predecessors, (5725), 568 states have call successors, (568), 366 states have call predecessors, (568), 553 states have return successors, (982), 631 states have call predecessors, (982), 564 states have call successors, (982) [2023-12-16 08:13:57,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 7275 transitions. [2023-12-16 08:13:57,320 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 7275 transitions. Word has length 122 [2023-12-16 08:13:57,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:57,320 INFO L495 AbstractCegarLoop]: Abstraction has 5356 states and 7275 transitions. [2023-12-16 08:13:57,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:57,321 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 7275 transitions. [2023-12-16 08:13:57,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:13:57,328 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:57,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:57,333 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 08:13:57,532 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 08:13:57,533 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:57,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:57,533 INFO L85 PathProgramCache]: Analyzing trace with hash 852328306, now seen corresponding path program 1 times [2023-12-16 08:13:57,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:57,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608544454] [2023-12-16 08:13:57,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:57,533 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:57,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:57,534 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 08:13:57,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:57,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:57,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:57,679 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 08:13:57,679 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:57,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:57,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608544454] [2023-12-16 08:13:57,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608544454] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:57,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:57,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:57,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432878216] [2023-12-16 08:13:57,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:57,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:57,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:57,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:57,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:57,681 INFO L87 Difference]: Start difference. First operand 5356 states and 7275 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:58,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:58,578 INFO L93 Difference]: Finished difference Result 6450 states and 8857 transitions. [2023-12-16 08:13:58,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:13:58,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:13:58,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:58,591 INFO L225 Difference]: With dead ends: 6450 [2023-12-16 08:13:58,591 INFO L226 Difference]: Without dead ends: 5474 [2023-12-16 08:13:58,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 08:13:58,594 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 746 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:58,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 776 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:13:58,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2023-12-16 08:13:59,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 5474. [2023-12-16 08:13:59,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 4345 states have (on average 1.3500575373993096) internal successors, (5866), 4479 states have internal predecessors, (5866), 570 states have call successors, (570), 370 states have call predecessors, (570), 557 states have return successors, (984), 633 states have call predecessors, (984), 566 states have call successors, (984) [2023-12-16 08:13:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 7420 transitions. [2023-12-16 08:13:59,033 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 7420 transitions. Word has length 122 [2023-12-16 08:13:59,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:59,033 INFO L495 AbstractCegarLoop]: Abstraction has 5474 states and 7420 transitions. [2023-12-16 08:13:59,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:13:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 7420 transitions. [2023-12-16 08:13:59,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:13:59,040 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:59,040 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:59,047 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 08:13:59,245 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 08:13:59,245 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:59,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:59,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1088253708, now seen corresponding path program 1 times [2023-12-16 08:13:59,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:59,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [507476629] [2023-12-16 08:13:59,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:59,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:13:59,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:59,247 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 08:13:59,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:13:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:59,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:59,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:59,390 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 08:13:59,390 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:59,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:59,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [507476629] [2023-12-16 08:13:59,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [507476629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:59,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:59,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:59,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983935286] [2023-12-16 08:13:59,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:59,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:59,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:59,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:59,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:59,392 INFO L87 Difference]: Start difference. First operand 5474 states and 7420 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:00,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:00,255 INFO L93 Difference]: Finished difference Result 6686 states and 9147 transitions. [2023-12-16 08:14:00,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:14:00,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:14:00,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:00,263 INFO L225 Difference]: With dead ends: 6686 [2023-12-16 08:14:00,263 INFO L226 Difference]: Without dead ends: 5592 [2023-12-16 08:14:00,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 08:14:00,265 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 739 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:00,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 769 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:14:00,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5592 states. [2023-12-16 08:14:00,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5592 to 5592. [2023-12-16 08:14:00,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5592 states, 4457 states have (on average 1.346870091990128) internal successors, (6003), 4591 states have internal predecessors, (6003), 572 states have call successors, (572), 374 states have call predecessors, (572), 561 states have return successors, (986), 635 states have call predecessors, (986), 568 states have call successors, (986) [2023-12-16 08:14:00,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5592 states to 5592 states and 7561 transitions. [2023-12-16 08:14:00,684 INFO L78 Accepts]: Start accepts. Automaton has 5592 states and 7561 transitions. Word has length 122 [2023-12-16 08:14:00,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:00,684 INFO L495 AbstractCegarLoop]: Abstraction has 5592 states and 7561 transitions. [2023-12-16 08:14:00,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:00,685 INFO L276 IsEmpty]: Start isEmpty. Operand 5592 states and 7561 transitions. [2023-12-16 08:14:00,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:14:00,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:00,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:00,695 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 (24)] Ended with exit code 0 [2023-12-16 08:14:00,892 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 08:14:00,892 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:00,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:00,892 INFO L85 PathProgramCache]: Analyzing trace with hash 937732853, now seen corresponding path program 1 times [2023-12-16 08:14:00,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:00,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171059184] [2023-12-16 08:14:00,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:00,893 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:14:00,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:00,894 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 08:14:00,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:14:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:00,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:00,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:01,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:14:01,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:01,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:01,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171059184] [2023-12-16 08:14:01,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171059184] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:01,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:01,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:01,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793127798] [2023-12-16 08:14:01,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:01,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:01,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:01,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:01,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:01,044 INFO L87 Difference]: Start difference. First operand 5592 states and 7561 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:01,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:01,963 INFO L93 Difference]: Finished difference Result 6922 states and 9429 transitions. [2023-12-16 08:14:01,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:14:01,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:14:01,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:01,975 INFO L225 Difference]: With dead ends: 6922 [2023-12-16 08:14:01,975 INFO L226 Difference]: Without dead ends: 5710 [2023-12-16 08:14:01,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 08:14:01,980 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 732 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:01,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 762 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:14:01,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5710 states. [2023-12-16 08:14:02,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5710 to 5710. [2023-12-16 08:14:02,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5710 states, 4569 states have (on average 1.3429634493324578) internal successors, (6136), 4703 states have internal predecessors, (6136), 574 states have call successors, (574), 378 states have call predecessors, (574), 565 states have return successors, (988), 637 states have call predecessors, (988), 570 states have call successors, (988) [2023-12-16 08:14:02,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5710 states to 5710 states and 7698 transitions. [2023-12-16 08:14:02,462 INFO L78 Accepts]: Start accepts. Automaton has 5710 states and 7698 transitions. Word has length 122 [2023-12-16 08:14:02,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:02,462 INFO L495 AbstractCegarLoop]: Abstraction has 5710 states and 7698 transitions. [2023-12-16 08:14:02,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:02,462 INFO L276 IsEmpty]: Start isEmpty. Operand 5710 states and 7698 transitions. [2023-12-16 08:14:02,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:14:02,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:02,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:14:02,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-16 08:14:02,670 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 08:14:02,670 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:02,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:02,671 INFO L85 PathProgramCache]: Analyzing trace with hash -650649163, now seen corresponding path program 1 times [2023-12-16 08:14:02,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:02,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094691481] [2023-12-16 08:14:02,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:02,671 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:14:02,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:02,672 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 08:14:02,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-16 08:14:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:02,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:02,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:02,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:14:02,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:02,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:02,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094691481] [2023-12-16 08:14:02,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094691481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:02,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:02,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:02,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39430862] [2023-12-16 08:14:02,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:02,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:02,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:02,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:02,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:02,821 INFO L87 Difference]: Start difference. First operand 5710 states and 7698 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:03,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:03,713 INFO L93 Difference]: Finished difference Result 7158 states and 9703 transitions. [2023-12-16 08:14:03,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:14:03,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:14:03,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:03,726 INFO L225 Difference]: With dead ends: 7158 [2023-12-16 08:14:03,726 INFO L226 Difference]: Without dead ends: 5828 [2023-12-16 08:14:03,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 08:14:03,731 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 725 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:03,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 755 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:14:03,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5828 states. [2023-12-16 08:14:04,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5828 to 5828. [2023-12-16 08:14:04,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5828 states, 4681 states have (on average 1.3383892330698568) internal successors, (6265), 4815 states have internal predecessors, (6265), 576 states have call successors, (576), 382 states have call predecessors, (576), 569 states have return successors, (990), 639 states have call predecessors, (990), 572 states have call successors, (990) [2023-12-16 08:14:04,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5828 states to 5828 states and 7831 transitions. [2023-12-16 08:14:04,259 INFO L78 Accepts]: Start accepts. Automaton has 5828 states and 7831 transitions. Word has length 122 [2023-12-16 08:14:04,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:04,259 INFO L495 AbstractCegarLoop]: Abstraction has 5828 states and 7831 transitions. [2023-12-16 08:14:04,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:04,259 INFO L276 IsEmpty]: Start isEmpty. Operand 5828 states and 7831 transitions. [2023-12-16 08:14:04,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:14:04,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:04,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:04,270 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 08:14:04,470 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 08:14:04,470 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:04,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:04,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1435756298, now seen corresponding path program 1 times [2023-12-16 08:14:04,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:04,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661315648] [2023-12-16 08:14:04,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:04,471 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:14:04,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:04,489 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 08:14:04,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:14:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:04,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:04,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:04,597 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 08:14:04,597 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:04,597 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:04,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661315648] [2023-12-16 08:14:04,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661315648] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:04,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:04,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:04,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332501927] [2023-12-16 08:14:04,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:04,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:14:04,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:04,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:14:04,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:14:04,600 INFO L87 Difference]: Start difference. First operand 5828 states and 7831 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:05,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:05,137 INFO L93 Difference]: Finished difference Result 7379 states and 9948 transitions. [2023-12-16 08:14:05,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:05,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:14:05,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:05,147 INFO L225 Difference]: With dead ends: 7379 [2023-12-16 08:14:05,147 INFO L226 Difference]: Without dead ends: 5932 [2023-12-16 08:14:05,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 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 08:14:05,150 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 74 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:05,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1419 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:05,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5932 states. [2023-12-16 08:14:05,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5932 to 5832. [2023-12-16 08:14:05,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5832 states, 4685 states have (on average 1.3346851654215581) internal successors, (6253), 4819 states have internal predecessors, (6253), 576 states have call successors, (576), 382 states have call predecessors, (576), 569 states have return successors, (990), 639 states have call predecessors, (990), 572 states have call successors, (990) [2023-12-16 08:14:05,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5832 states to 5832 states and 7819 transitions. [2023-12-16 08:14:05,645 INFO L78 Accepts]: Start accepts. Automaton has 5832 states and 7819 transitions. Word has length 122 [2023-12-16 08:14:05,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:05,645 INFO L495 AbstractCegarLoop]: Abstraction has 5832 states and 7819 transitions. [2023-12-16 08:14:05,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:05,645 INFO L276 IsEmpty]: Start isEmpty. Operand 5832 states and 7819 transitions. [2023-12-16 08:14:05,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:14:05,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:05,651 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:05,655 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 08:14:05,855 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 08:14:05,855 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:05,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:05,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1716708532, now seen corresponding path program 1 times [2023-12-16 08:14:05,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:05,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532663203] [2023-12-16 08:14:05,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:05,856 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:14:05,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:05,857 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 08:14:05,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:14:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:05,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:05,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:05,958 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 08:14:05,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:05,959 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:05,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532663203] [2023-12-16 08:14:05,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532663203] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:05,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:05,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:05,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618266713] [2023-12-16 08:14:05,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:05,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:14:05,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:05,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:14:05,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:14:05,960 INFO L87 Difference]: Start difference. First operand 5832 states and 7819 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:06,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:06,478 INFO L93 Difference]: Finished difference Result 7375 states and 9908 transitions. [2023-12-16 08:14:06,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:06,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:14:06,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:06,491 INFO L225 Difference]: With dead ends: 7375 [2023-12-16 08:14:06,491 INFO L226 Difference]: Without dead ends: 5924 [2023-12-16 08:14:06,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 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 08:14:06,495 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 65 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:06,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1423 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:06,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5924 states. [2023-12-16 08:14:06,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5924 to 5836. [2023-12-16 08:14:06,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5836 states, 4689 states have (on average 1.3309874173597782) internal successors, (6241), 4823 states have internal predecessors, (6241), 576 states have call successors, (576), 382 states have call predecessors, (576), 569 states have return successors, (990), 639 states have call predecessors, (990), 572 states have call successors, (990) [2023-12-16 08:14:06,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5836 states to 5836 states and 7807 transitions. [2023-12-16 08:14:06,993 INFO L78 Accepts]: Start accepts. Automaton has 5836 states and 7807 transitions. Word has length 122 [2023-12-16 08:14:06,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:06,993 INFO L495 AbstractCegarLoop]: Abstraction has 5836 states and 7807 transitions. [2023-12-16 08:14:06,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:06,993 INFO L276 IsEmpty]: Start isEmpty. Operand 5836 states and 7807 transitions. [2023-12-16 08:14:06,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:14:06,999 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:06,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:07,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-16 08:14:07,199 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 08:14:07,200 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:07,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:07,200 INFO L85 PathProgramCache]: Analyzing trace with hash -844154314, now seen corresponding path program 1 times [2023-12-16 08:14:07,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:07,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851624282] [2023-12-16 08:14:07,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:07,201 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:14:07,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:07,202 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 08:14:07,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-16 08:14:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:07,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:07,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:07,314 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 08:14:07,314 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:07,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:07,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851624282] [2023-12-16 08:14:07,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1851624282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:07,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:07,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:07,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035906535] [2023-12-16 08:14:07,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:07,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:14:07,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:07,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:14:07,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:14:07,315 INFO L87 Difference]: Start difference. First operand 5836 states and 7807 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:07,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:07,913 INFO L93 Difference]: Finished difference Result 8011 states and 10730 transitions. [2023-12-16 08:14:07,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:07,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:14:07,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:07,925 INFO L225 Difference]: With dead ends: 8011 [2023-12-16 08:14:07,925 INFO L226 Difference]: Without dead ends: 6556 [2023-12-16 08:14:07,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 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 08:14:07,929 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 56 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:07,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1426 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:07,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6556 states. [2023-12-16 08:14:08,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6556 to 5872. [2023-12-16 08:14:08,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5872 states, 4725 states have (on average 1.3284656084656086) internal successors, (6277), 4859 states have internal predecessors, (6277), 576 states have call successors, (576), 382 states have call predecessors, (576), 569 states have return successors, (990), 639 states have call predecessors, (990), 572 states have call successors, (990) [2023-12-16 08:14:08,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5872 states to 5872 states and 7843 transitions. [2023-12-16 08:14:08,459 INFO L78 Accepts]: Start accepts. Automaton has 5872 states and 7843 transitions. Word has length 122 [2023-12-16 08:14:08,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:08,459 INFO L495 AbstractCegarLoop]: Abstraction has 5872 states and 7843 transitions. [2023-12-16 08:14:08,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:08,459 INFO L276 IsEmpty]: Start isEmpty. Operand 5872 states and 7843 transitions. [2023-12-16 08:14:08,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:14:08,464 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:08,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:08,468 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2023-12-16 08:14:08,668 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 08:14:08,668 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:08,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:08,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1064303476, now seen corresponding path program 1 times [2023-12-16 08:14:08,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:08,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408244797] [2023-12-16 08:14:08,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:08,669 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:14:08,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:08,670 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 08:14:08,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:14:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:08,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:08,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:08,782 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 08:14:08,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:08,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:08,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408244797] [2023-12-16 08:14:08,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408244797] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:08,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:08,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:08,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091126117] [2023-12-16 08:14:08,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:08,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:14:08,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:08,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:14:08,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:14:08,783 INFO L87 Difference]: Start difference. First operand 5872 states and 7843 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:09,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:09,281 INFO L93 Difference]: Finished difference Result 7431 states and 9922 transitions. [2023-12-16 08:14:09,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:09,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:14:09,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:09,293 INFO L225 Difference]: With dead ends: 7431 [2023-12-16 08:14:09,293 INFO L226 Difference]: Without dead ends: 5940 [2023-12-16 08:14:09,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 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 08:14:09,298 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 47 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:09,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1421 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:09,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5940 states. [2023-12-16 08:14:09,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5940 to 5876. [2023-12-16 08:14:09,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5876 states, 4729 states have (on average 1.324804398392895) internal successors, (6265), 4863 states have internal predecessors, (6265), 576 states have call successors, (576), 382 states have call predecessors, (576), 569 states have return successors, (990), 639 states have call predecessors, (990), 572 states have call successors, (990) [2023-12-16 08:14:09,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5876 states to 5876 states and 7831 transitions. [2023-12-16 08:14:09,795 INFO L78 Accepts]: Start accepts. Automaton has 5876 states and 7831 transitions. Word has length 122 [2023-12-16 08:14:09,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:09,795 INFO L495 AbstractCegarLoop]: Abstraction has 5876 states and 7831 transitions. [2023-12-16 08:14:09,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:09,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5876 states and 7831 transitions. [2023-12-16 08:14:09,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:14:09,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:09,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:09,805 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 08:14:10,001 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 08:14:10,002 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:10,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:10,002 INFO L85 PathProgramCache]: Analyzing trace with hash -621876362, now seen corresponding path program 1 times [2023-12-16 08:14:10,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:10,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83244721] [2023-12-16 08:14:10,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:10,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:14:10,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:10,004 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 08:14:10,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:14:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:10,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:10,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:10,113 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 08:14:10,113 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:10,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:10,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83244721] [2023-12-16 08:14:10,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83244721] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:10,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:10,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:10,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176173026] [2023-12-16 08:14:10,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:10,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:14:10,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:10,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:14:10,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:14:10,114 INFO L87 Difference]: Start difference. First operand 5876 states and 7831 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:10,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:10,643 INFO L93 Difference]: Finished difference Result 7427 states and 9882 transitions. [2023-12-16 08:14:10,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:10,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:14:10,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:10,653 INFO L225 Difference]: With dead ends: 7427 [2023-12-16 08:14:10,653 INFO L226 Difference]: Without dead ends: 5932 [2023-12-16 08:14:10,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 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 08:14:10,657 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 38 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:10,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1422 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:10,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5932 states. [2023-12-16 08:14:11,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5932 to 5880. [2023-12-16 08:14:11,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5880 states, 4733 states have (on average 1.3211493767166702) internal successors, (6253), 4867 states have internal predecessors, (6253), 576 states have call successors, (576), 382 states have call predecessors, (576), 569 states have return successors, (990), 639 states have call predecessors, (990), 572 states have call successors, (990) [2023-12-16 08:14:11,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5880 states to 5880 states and 7819 transitions. [2023-12-16 08:14:11,149 INFO L78 Accepts]: Start accepts. Automaton has 5880 states and 7819 transitions. Word has length 122 [2023-12-16 08:14:11,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:11,149 INFO L495 AbstractCegarLoop]: Abstraction has 5880 states and 7819 transitions. [2023-12-16 08:14:11,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:11,150 INFO L276 IsEmpty]: Start isEmpty. Operand 5880 states and 7819 transitions. [2023-12-16 08:14:11,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:14:11,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:11,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:11,159 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 (31)] Ended with exit code 0 [2023-12-16 08:14:11,356 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 08:14:11,356 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:11,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:11,356 INFO L85 PathProgramCache]: Analyzing trace with hash -420052428, now seen corresponding path program 1 times [2023-12-16 08:14:11,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:11,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809393005] [2023-12-16 08:14:11,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:11,357 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:14:11,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:11,358 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 08:14:11,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:14:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:11,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:11,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:11,458 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 08:14:11,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:11,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:11,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809393005] [2023-12-16 08:14:11,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809393005] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:11,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:11,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:11,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904812315] [2023-12-16 08:14:11,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:11,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:14:11,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:11,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:14:11,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:14:11,459 INFO L87 Difference]: Start difference. First operand 5880 states and 7819 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:12,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:12,058 INFO L93 Difference]: Finished difference Result 7411 states and 9826 transitions. [2023-12-16 08:14:12,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:12,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:14:12,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:12,070 INFO L225 Difference]: With dead ends: 7411 [2023-12-16 08:14:12,070 INFO L226 Difference]: Without dead ends: 5912 [2023-12-16 08:14:12,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 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 08:14:12,074 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 20 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:12,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1424 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:12,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5912 states. [2023-12-16 08:14:12,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5912 to 5884. [2023-12-16 08:14:12,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5884 states, 4737 states have (on average 1.3175005277601857) internal successors, (6241), 4871 states have internal predecessors, (6241), 576 states have call successors, (576), 382 states have call predecessors, (576), 569 states have return successors, (990), 639 states have call predecessors, (990), 572 states have call successors, (990) [2023-12-16 08:14:12,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5884 states to 5884 states and 7807 transitions. [2023-12-16 08:14:12,567 INFO L78 Accepts]: Start accepts. Automaton has 5884 states and 7807 transitions. Word has length 122 [2023-12-16 08:14:12,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:12,568 INFO L495 AbstractCegarLoop]: Abstraction has 5884 states and 7807 transitions. [2023-12-16 08:14:12,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:12,568 INFO L276 IsEmpty]: Start isEmpty. Operand 5884 states and 7807 transitions. [2023-12-16 08:14:12,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:14:12,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:12,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:12,577 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 08:14:12,776 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 08:14:12,776 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:12,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:12,777 INFO L85 PathProgramCache]: Analyzing trace with hash -901132686, now seen corresponding path program 1 times [2023-12-16 08:14:12,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:12,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913676427] [2023-12-16 08:14:12,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:12,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:14:12,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:12,778 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 08:14:12,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:14:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:12,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:12,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:12,888 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 08:14:12,888 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:12,888 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:12,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913676427] [2023-12-16 08:14:12,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913676427] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:12,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:12,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:12,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278164149] [2023-12-16 08:14:12,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:12,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:14:12,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:12,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:14:12,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:14:12,889 INFO L87 Difference]: Start difference. First operand 5884 states and 7807 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:13,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:13,417 INFO L93 Difference]: Finished difference Result 7407 states and 9786 transitions. [2023-12-16 08:14:13,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:13,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:14:13,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:13,425 INFO L225 Difference]: With dead ends: 7407 [2023-12-16 08:14:13,425 INFO L226 Difference]: Without dead ends: 5904 [2023-12-16 08:14:13,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 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 08:14:13,428 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 11 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:13,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1425 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:13,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5904 states. [2023-12-16 08:14:13,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5904 to 5888. [2023-12-16 08:14:13,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5888 states, 4741 states have (on average 1.3138578358995991) internal successors, (6229), 4875 states have internal predecessors, (6229), 576 states have call successors, (576), 382 states have call predecessors, (576), 569 states have return successors, (990), 639 states have call predecessors, (990), 572 states have call successors, (990) [2023-12-16 08:14:13,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5888 states to 5888 states and 7795 transitions. [2023-12-16 08:14:13,896 INFO L78 Accepts]: Start accepts. Automaton has 5888 states and 7795 transitions. Word has length 122 [2023-12-16 08:14:13,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:13,897 INFO L495 AbstractCegarLoop]: Abstraction has 5888 states and 7795 transitions. [2023-12-16 08:14:13,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:13,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5888 states and 7795 transitions. [2023-12-16 08:14:13,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:14:13,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:13,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:13,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2023-12-16 08:14:14,103 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 08:14:14,103 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:14,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:14,104 INFO L85 PathProgramCache]: Analyzing trace with hash -7646348, now seen corresponding path program 1 times [2023-12-16 08:14:14,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:14,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409576115] [2023-12-16 08:14:14,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:14,104 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:14:14,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:14,105 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 08:14:14,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:14:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:14,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:14,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:14,206 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 08:14:14,206 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:14,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:14,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1409576115] [2023-12-16 08:14:14,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1409576115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:14,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:14,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:14,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183970766] [2023-12-16 08:14:14,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:14,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:14:14,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:14,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:14:14,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:14:14,208 INFO L87 Difference]: Start difference. First operand 5888 states and 7795 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:14,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:14,720 INFO L93 Difference]: Finished difference Result 7403 states and 9746 transitions. [2023-12-16 08:14:14,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:14,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:14:14,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:14,730 INFO L225 Difference]: With dead ends: 7403 [2023-12-16 08:14:14,730 INFO L226 Difference]: Without dead ends: 5896 [2023-12-16 08:14:14,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 119 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 08:14:14,734 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 2 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:14,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1426 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:14,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2023-12-16 08:14:15,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 5892. [2023-12-16 08:14:15,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 4745 states have (on average 1.3102212855637514) internal successors, (6217), 4879 states have internal predecessors, (6217), 576 states have call successors, (576), 382 states have call predecessors, (576), 569 states have return successors, (990), 639 states have call predecessors, (990), 572 states have call successors, (990) [2023-12-16 08:14:15,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 7783 transitions. [2023-12-16 08:14:15,230 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 7783 transitions. Word has length 122 [2023-12-16 08:14:15,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:15,230 INFO L495 AbstractCegarLoop]: Abstraction has 5892 states and 7783 transitions. [2023-12-16 08:14:15,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:15,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 7783 transitions. [2023-12-16 08:14:15,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:14:15,237 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:15,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:15,241 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 08:14:15,437 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 08:14:15,437 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:15,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:15,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1379453646, now seen corresponding path program 1 times [2023-12-16 08:14:15,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:15,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682181678] [2023-12-16 08:14:15,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:15,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:14:15,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:15,439 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 08:14:15,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:14:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:15,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:14:15,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:15,654 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 08:14:15,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:15,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:15,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682181678] [2023-12-16 08:14:15,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1682181678] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:15,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:15,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:15,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872992135] [2023-12-16 08:14:15,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:15,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:15,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:15,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:15,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:15,655 INFO L87 Difference]: Start difference. First operand 5892 states and 7783 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:16,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:16,498 INFO L93 Difference]: Finished difference Result 7404 states and 9681 transitions. [2023-12-16 08:14:16,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:14:16,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:14:16,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:16,509 INFO L225 Difference]: With dead ends: 7404 [2023-12-16 08:14:16,509 INFO L226 Difference]: Without dead ends: 5892 [2023-12-16 08:14:16,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 08:14:16,512 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 596 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:16,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 747 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:14:16,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2023-12-16 08:14:17,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2023-12-16 08:14:17,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 4745 states have (on average 1.3087460484720759) internal successors, (6210), 4879 states have internal predecessors, (6210), 576 states have call successors, (576), 382 states have call predecessors, (576), 569 states have return successors, (990), 639 states have call predecessors, (990), 572 states have call successors, (990) [2023-12-16 08:14:17,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 7776 transitions. [2023-12-16 08:14:17,029 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 7776 transitions. Word has length 122 [2023-12-16 08:14:17,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:17,030 INFO L495 AbstractCegarLoop]: Abstraction has 5892 states and 7776 transitions. [2023-12-16 08:14:17,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:17,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 7776 transitions. [2023-12-16 08:14:17,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:14:17,036 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:17,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:17,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2023-12-16 08:14:17,238 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 08:14:17,238 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:17,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:17,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1451840204, now seen corresponding path program 1 times [2023-12-16 08:14:17,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:17,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075662097] [2023-12-16 08:14:17,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:17,239 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:14:17,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:17,240 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 08:14:17,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-16 08:14:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:17,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:14:17,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:17,428 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 08:14:17,428 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:17,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:17,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075662097] [2023-12-16 08:14:17,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1075662097] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:17,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:17,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:17,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387018057] [2023-12-16 08:14:17,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:17,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:17,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:17,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:17,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:17,430 INFO L87 Difference]: Start difference. First operand 5892 states and 7776 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:18,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:18,416 INFO L93 Difference]: Finished difference Result 7564 states and 9881 transitions. [2023-12-16 08:14:18,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:14:18,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 122 [2023-12-16 08:14:18,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:18,424 INFO L225 Difference]: With dead ends: 7564 [2023-12-16 08:14:18,424 INFO L226 Difference]: Without dead ends: 6052 [2023-12-16 08:14:18,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 08:14:18,427 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 693 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:18,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 742 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:14:18,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6052 states. [2023-12-16 08:14:18,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6052 to 5972. [2023-12-16 08:14:18,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5972 states, 4823 states have (on average 1.2998133941530168) internal successors, (6269), 4957 states have internal predecessors, (6269), 576 states have call successors, (576), 384 states have call predecessors, (576), 571 states have return successors, (990), 639 states have call predecessors, (990), 572 states have call successors, (990) [2023-12-16 08:14:18,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5972 states to 5972 states and 7835 transitions. [2023-12-16 08:14:18,924 INFO L78 Accepts]: Start accepts. Automaton has 5972 states and 7835 transitions. Word has length 122 [2023-12-16 08:14:18,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:18,924 INFO L495 AbstractCegarLoop]: Abstraction has 5972 states and 7835 transitions. [2023-12-16 08:14:18,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 08:14:18,924 INFO L276 IsEmpty]: Start isEmpty. Operand 5972 states and 7835 transitions. [2023-12-16 08:14:18,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 08:14:18,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:18,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:18,934 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2023-12-16 08:14:19,131 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 08:14:19,131 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:19,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:19,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1311291594, now seen corresponding path program 1 times [2023-12-16 08:14:19,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:19,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799842349] [2023-12-16 08:14:19,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:19,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:14:19,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:19,133 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 08:14:19,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 08:14:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:19,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:14:19,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:19,329 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 08:14:19,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:19,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:19,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799842349] [2023-12-16 08:14:19,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1799842349] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:19,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:19,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:14:19,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406170554] [2023-12-16 08:14:19,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:19,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:14:19,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:19,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:14:19,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:14:19,330 INFO L87 Difference]: Start difference. First operand 5972 states and 7835 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 08:14:19,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:19,969 INFO L93 Difference]: Finished difference Result 9109 states and 11694 transitions. [2023-12-16 08:14:19,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:14:19,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 122 [2023-12-16 08:14:19,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:19,984 INFO L225 Difference]: With dead ends: 9109 [2023-12-16 08:14:19,984 INFO L226 Difference]: Without dead ends: 7518 [2023-12-16 08:14:19,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 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 08:14:19,988 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 373 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:19,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 817 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:19,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7518 states. [2023-12-16 08:14:20,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7518 to 7516. [2023-12-16 08:14:20,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 6269 states have (on average 1.2793108948795662) internal successors, (8020), 6406 states have internal predecessors, (8020), 627 states have call successors, (627), 430 states have call predecessors, (627), 618 states have return successors, (1042), 688 states have call predecessors, (1042), 623 states have call successors, (1042) [2023-12-16 08:14:20,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 9689 transitions. [2023-12-16 08:14:20,630 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 9689 transitions. Word has length 122 [2023-12-16 08:14:20,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:20,630 INFO L495 AbstractCegarLoop]: Abstraction has 7516 states and 9689 transitions. [2023-12-16 08:14:20,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 08:14:20,630 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 9689 transitions. [2023-12-16 08:14:20,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-16 08:14:20,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:20,637 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 08:14:20,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2023-12-16 08:14:20,840 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 08:14:20,840 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:20,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:20,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1941991015, now seen corresponding path program 1 times [2023-12-16 08:14:20,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:20,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [549693137] [2023-12-16 08:14:20,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:20,841 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:14:20,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:20,842 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:14:20,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-16 08:14:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:20,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:14:20,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:20,946 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 08:14:20,946 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:20,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:20,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [549693137] [2023-12-16 08:14:20,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [549693137] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:20,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:20,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:14:20,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773566758] [2023-12-16 08:14:20,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:20,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:14:20,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:20,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:14:20,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:14:20,947 INFO L87 Difference]: Start difference. First operand 7516 states and 9689 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 08:14:21,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:21,628 INFO L93 Difference]: Finished difference Result 11872 states and 15643 transitions. [2023-12-16 08:14:21,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:14:21,629 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 08:14:21,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:21,643 INFO L225 Difference]: With dead ends: 11872 [2023-12-16 08:14:21,643 INFO L226 Difference]: Without dead ends: 7556 [2023-12-16 08:14:21,651 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 08:14:21,651 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 32 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:21,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 2356 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:21,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7556 states. [2023-12-16 08:14:22,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7556 to 7070. [2023-12-16 08:14:22,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7070 states, 5991 states have (on average 1.2699048572859288) internal successors, (7608), 6067 states have internal predecessors, (7608), 531 states have call successors, (531), 379 states have call predecessors, (531), 546 states have return successors, (899), 632 states have call predecessors, (899), 527 states have call successors, (899) [2023-12-16 08:14:22,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7070 states to 7070 states and 9038 transitions. [2023-12-16 08:14:22,205 INFO L78 Accepts]: Start accepts. Automaton has 7070 states and 9038 transitions. Word has length 138 [2023-12-16 08:14:22,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:22,205 INFO L495 AbstractCegarLoop]: Abstraction has 7070 states and 9038 transitions. [2023-12-16 08:14:22,205 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 08:14:22,205 INFO L276 IsEmpty]: Start isEmpty. Operand 7070 states and 9038 transitions. [2023-12-16 08:14:22,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 08:14:22,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:22,212 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 08:14:22,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2023-12-16 08:14:22,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:14:22,413 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:22,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:22,414 INFO L85 PathProgramCache]: Analyzing trace with hash -247950416, now seen corresponding path program 1 times [2023-12-16 08:14:22,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:22,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276965641] [2023-12-16 08:14:22,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:22,414 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:14:22,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:22,415 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:14:22,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-16 08:14:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:22,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:14:22,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:22,510 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 08:14:22,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:22,510 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:22,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276965641] [2023-12-16 08:14:22,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276965641] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:22,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:22,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:14:22,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656022256] [2023-12-16 08:14:22,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:22,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:14:22,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:22,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:14:22,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:14:22,512 INFO L87 Difference]: Start difference. First operand 7070 states and 9038 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 08:14:22,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:22,959 INFO L93 Difference]: Finished difference Result 9377 states and 12101 transitions. [2023-12-16 08:14:22,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:14:22,960 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 08:14:22,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:22,970 INFO L225 Difference]: With dead ends: 9377 [2023-12-16 08:14:22,970 INFO L226 Difference]: Without dead ends: 5547 [2023-12-16 08:14:22,976 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 08:14:22,976 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 138 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:22,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 807 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:22,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5547 states. [2023-12-16 08:14:23,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5547 to 5547. [2023-12-16 08:14:23,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5547 states, 4810 states have (on average 1.2594594594594595) internal successors, (6058), 4860 states have internal predecessors, (6058), 355 states have call successors, (355), 267 states have call predecessors, (355), 380 states have return successors, (579), 420 states have call predecessors, (579), 351 states have call successors, (579) [2023-12-16 08:14:23,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5547 states to 5547 states and 6992 transitions. [2023-12-16 08:14:23,349 INFO L78 Accepts]: Start accepts. Automaton has 5547 states and 6992 transitions. Word has length 139 [2023-12-16 08:14:23,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:23,349 INFO L495 AbstractCegarLoop]: Abstraction has 5547 states and 6992 transitions. [2023-12-16 08:14:23,349 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 08:14:23,349 INFO L276 IsEmpty]: Start isEmpty. Operand 5547 states and 6992 transitions. [2023-12-16 08:14:23,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 08:14:23,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:23,352 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 08:14:23,356 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 (39)] Ended with exit code 0 [2023-12-16 08:14:23,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:14:23,553 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:23,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:23,553 INFO L85 PathProgramCache]: Analyzing trace with hash -832065812, now seen corresponding path program 1 times [2023-12-16 08:14:23,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:23,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915730613] [2023-12-16 08:14:23,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:23,554 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:14:23,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:23,555 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:14:23,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-16 08:14:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:23,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:14:23,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:23,722 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 08:14:23,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:23,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:23,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915730613] [2023-12-16 08:14:23,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1915730613] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:23,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:23,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:14:23,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669611371] [2023-12-16 08:14:23,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:23,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:14:23,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:23,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:14:23,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:14:23,723 INFO L87 Difference]: Start difference. First operand 5547 states and 6992 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 08:14:24,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:24,305 INFO L93 Difference]: Finished difference Result 9247 states and 12053 transitions. [2023-12-16 08:14:24,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:14:24,306 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 08:14:24,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:24,319 INFO L225 Difference]: With dead ends: 9247 [2023-12-16 08:14:24,319 INFO L226 Difference]: Without dead ends: 7140 [2023-12-16 08:14:24,322 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 08:14:24,323 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 64 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:24,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 937 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:24,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7140 states. [2023-12-16 08:14:24,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7140 to 7112. [2023-12-16 08:14:24,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7112 states, 6037 states have (on average 1.2748053669040915) internal successors, (7696), 6123 states have internal predecessors, (7696), 511 states have call successors, (511), 375 states have call predecessors, (511), 562 states have return successors, (888), 614 states have call predecessors, (888), 507 states have call successors, (888) [2023-12-16 08:14:24,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7112 states to 7112 states and 9095 transitions. [2023-12-16 08:14:24,882 INFO L78 Accepts]: Start accepts. Automaton has 7112 states and 9095 transitions. Word has length 141 [2023-12-16 08:14:24,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:24,882 INFO L495 AbstractCegarLoop]: Abstraction has 7112 states and 9095 transitions. [2023-12-16 08:14:24,882 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 08:14:24,882 INFO L276 IsEmpty]: Start isEmpty. Operand 7112 states and 9095 transitions. [2023-12-16 08:14:24,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 08:14:24,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:24,886 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 08:14:24,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2023-12-16 08:14:25,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:14:25,087 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:25,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:25,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2122204831, now seen corresponding path program 1 times [2023-12-16 08:14:25,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:25,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677237765] [2023-12-16 08:14:25,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:25,087 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:14:25,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:25,088 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:14:25,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-16 08:14:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:25,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:14:25,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:25,205 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 08:14:25,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:25,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:25,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677237765] [2023-12-16 08:14:25,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677237765] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:25,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:25,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:14:25,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823966684] [2023-12-16 08:14:25,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:25,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:14:25,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:25,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:14:25,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:14:25,209 INFO L87 Difference]: Start difference. First operand 7112 states and 9095 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 08:14:26,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:26,205 INFO L93 Difference]: Finished difference Result 14028 states and 18836 transitions. [2023-12-16 08:14:26,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:14:26,206 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 08:14:26,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:26,228 INFO L225 Difference]: With dead ends: 14028 [2023-12-16 08:14:26,228 INFO L226 Difference]: Without dead ends: 10356 [2023-12-16 08:14:26,233 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 08:14:26,234 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 94 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:26,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 975 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:26,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10356 states. [2023-12-16 08:14:27,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10356 to 10304. [2023-12-16 08:14:27,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10304 states, 8529 states have (on average 1.2772892484464766) internal successors, (10894), 8665 states have internal predecessors, (10894), 847 states have call successors, (847), 609 states have call predecessors, (847), 926 states have return successors, (1686), 1030 states have call predecessors, (1686), 843 states have call successors, (1686) [2023-12-16 08:14:27,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10304 states to 10304 states and 13427 transitions. [2023-12-16 08:14:27,174 INFO L78 Accepts]: Start accepts. Automaton has 10304 states and 13427 transitions. Word has length 142 [2023-12-16 08:14:27,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:27,174 INFO L495 AbstractCegarLoop]: Abstraction has 10304 states and 13427 transitions. [2023-12-16 08:14:27,174 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 08:14:27,174 INFO L276 IsEmpty]: Start isEmpty. Operand 10304 states and 13427 transitions. [2023-12-16 08:14:27,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 08:14:27,180 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:27,180 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 08:14:27,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2023-12-16 08:14:27,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:14:27,381 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:27,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:27,381 INFO L85 PathProgramCache]: Analyzing trace with hash -145755630, now seen corresponding path program 1 times [2023-12-16 08:14:27,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:27,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [175762982] [2023-12-16 08:14:27,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:27,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:14:27,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:27,383 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:14:27,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-16 08:14:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:27,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:14:27,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:27,571 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 08:14:27,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:27,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:27,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [175762982] [2023-12-16 08:14:27,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [175762982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:27,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:27,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:14:27,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904317859] [2023-12-16 08:14:27,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:27,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:14:27,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:27,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:14:27,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:14:27,573 INFO L87 Difference]: Start difference. First operand 10304 states and 13427 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 08:14:29,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:29,268 INFO L93 Difference]: Finished difference Result 23916 states and 32084 transitions. [2023-12-16 08:14:29,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:14:29,268 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 08:14:29,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:29,301 INFO L225 Difference]: With dead ends: 23916 [2023-12-16 08:14:29,301 INFO L226 Difference]: Without dead ends: 17052 [2023-12-16 08:14:29,310 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 08:14:29,310 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 68 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:29,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 942 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:14:29,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17052 states. [2023-12-16 08:14:31,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17052 to 17048. [2023-12-16 08:14:31,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17048 states, 13796 states have (on average 1.279936213395187) internal successors, (17658), 14061 states have internal predecessors, (17658), 1555 states have call successors, (1555), 1095 states have call predecessors, (1555), 1695 states have return successors, (3160), 1892 states have call predecessors, (3160), 1551 states have call successors, (3160) [2023-12-16 08:14:31,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17048 states to 17048 states and 22373 transitions. [2023-12-16 08:14:31,230 INFO L78 Accepts]: Start accepts. Automaton has 17048 states and 22373 transitions. Word has length 143 [2023-12-16 08:14:31,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:14:31,231 INFO L495 AbstractCegarLoop]: Abstraction has 17048 states and 22373 transitions. [2023-12-16 08:14:31,231 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 08:14:31,231 INFO L276 IsEmpty]: Start isEmpty. Operand 17048 states and 22373 transitions. [2023-12-16 08:14:31,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 08:14:31,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:14:31,243 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:14:31,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2023-12-16 08:14:31,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:14:31,443 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:14:31,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:14:31,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1175521632, now seen corresponding path program 1 times [2023-12-16 08:14:31,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:14:31,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408833684] [2023-12-16 08:14:31,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:14:31,444 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 08:14:31,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:14:31,446 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:14:31,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2023-12-16 08:14:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:14:31,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:14:31,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:14:31,576 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 08:14:31,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:14:31,576 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:14:31,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408833684] [2023-12-16 08:14:31,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408833684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:14:31,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:14:31,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:14:31,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215626329] [2023-12-16 08:14:31,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:14:31,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:14:31,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:14:31,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:14:31,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:14:31,578 INFO L87 Difference]: Start difference. First operand 17048 states and 22373 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 08:14:35,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:14:35,246 INFO L93 Difference]: Finished difference Result 43695 states and 58121 transitions. [2023-12-16 08:14:35,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:14:35,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 147 [2023-12-16 08:14:35,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:14:35,314 INFO L225 Difference]: With dead ends: 43695 [2023-12-16 08:14:35,314 INFO L226 Difference]: Without dead ends: 29800 [2023-12-16 08:14:35,336 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 08:14:35,336 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 709 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:14:35,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 736 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:14:35,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29800 states. Received shutdown request... [2023-12-16 08:14:37,293 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 08:14:37,293 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 (43)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:14:38,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2023-12-16 08:14:38,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 [2023-12-16 08:14:38,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29800 to 29752. [2023-12-16 08:14:38,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29752 states, 23594 states have (on average 1.2774858014749513) internal successors, (30141), 24082 states have internal predecessors, (30141), 2950 states have call successors, (2950), 2046 states have call predecessors, (2950), 3206 states have return successors, (5954), 3624 states have call predecessors, (5954), 2946 states have call successors, (5954) [2023-12-16 08:14:38,968 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 08:14:38,969 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 08:14:38,970 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 08:14:38,972 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-16 08:14:38,974 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:14:38,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:14:38 BoogieIcfgContainer [2023-12-16 08:14:38,975 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:14:38,976 INFO L158 Benchmark]: Toolchain (without parser) took 67522.84ms. Allocated memory was 231.7MB in the beginning and 3.3GB in the end (delta: 3.0GB). Free memory was 176.5MB in the beginning and 2.8GB in the end (delta: -2.7GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-16 08:14:38,976 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 231.7MB. Free memory is still 179.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:14:38,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.73ms. Allocated memory is still 231.7MB. Free memory was 176.5MB in the beginning and 150.8MB in the end (delta: 25.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-16 08:14:38,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.81ms. Allocated memory is still 231.7MB. Free memory was 150.8MB in the beginning and 146.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 08:14:38,976 INFO L158 Benchmark]: Boogie Preprocessor took 61.99ms. Allocated memory is still 231.7MB. Free memory was 146.6MB in the beginning and 140.8MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 08:14:38,976 INFO L158 Benchmark]: RCFGBuilder took 1010.94ms. Allocated memory was 231.7MB in the beginning and 408.9MB in the end (delta: 177.2MB). Free memory was 140.8MB in the beginning and 363.1MB in the end (delta: -222.3MB). Peak memory consumption was 67.1MB. Max. memory is 8.0GB. [2023-12-16 08:14:38,976 INFO L158 Benchmark]: TraceAbstraction took 65951.79ms. Allocated memory was 408.9MB in the beginning and 3.3GB in the end (delta: 2.8GB). Free memory was 362.6MB in the beginning and 2.8GB in the end (delta: -2.5GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-16 08:14:38,977 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 231.7MB. Free memory is still 179.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 436.73ms. Allocated memory is still 231.7MB. Free memory was 176.5MB in the beginning and 150.8MB in the end (delta: 25.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.81ms. Allocated memory is still 231.7MB. Free memory was 150.8MB in the beginning and 146.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 61.99ms. Allocated memory is still 231.7MB. Free memory was 146.6MB in the beginning and 140.8MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1010.94ms. Allocated memory was 231.7MB in the beginning and 408.9MB in the end (delta: 177.2MB). Free memory was 140.8MB in the beginning and 363.1MB in the end (delta: -222.3MB). Peak memory consumption was 67.1MB. Max. memory is 8.0GB. * TraceAbstraction took 65951.79ms. Allocated memory was 408.9MB in the beginning and 3.3GB in the end (delta: 2.8GB). Free memory was 362.6MB in the beginning and 2.8GB in the end (delta: -2.5GB). Peak memory consumption was 1.7GB. 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 ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 599]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 599). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 16 procedures, 368 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 65.9s, OverallIterations: 42, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 30.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18827 SdHoareTripleChecker+Valid, 11.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18244 mSDsluCounter, 44832 SdHoareTripleChecker+Invalid, 9.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28014 mSDsCounter, 1309 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16565 IncrementalHoareTripleChecker+Invalid, 17874 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1309 mSolverCounterUnsat, 16818 mSDtfsCounter, 16565 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4762 GetRequests, 4631 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17048occurred in iteration=41, InterpolantAutomatonStates: 186, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 20.2s AutomataMinimizationTime, 42 MinimizatonAttempts, 1782 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 4774 NumberOfCodeBlocks, 4774 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 4732 ConstructedInterpolants, 0 QuantifiedInterpolants, 7316 SizeOfPredicates, 13 NumberOfNonLiveVariables, 13200 ConjunctsInSsa, 162 ConjunctsInUnsatCore, 42 InterpolantComputations, 42 PerfectInterpolantSequences, 564/564 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